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T OF THE INTERIOR, 
 
 U. S. GEOlflpICAL AND GEOGRAPHICAL SURVEY OF THE TERRITORIES. 
 F. V. HAYDEN, U. S. GEOLOGIST-IN-CHARGE. 
 
 MISCELLANEOUS PUBLICATIONS No. 4. 
 
 SYNOPSIS 
 
 OF THE 
 
 FLOEA OF COLOEADO, 
 
 BY 
 
 TEEO1MA.S C. PORTER 
 
 AND 
 
 Mi. COULTER. 
 
 WASHINGTON: 
 
 GOVERNMENT FEINTING OFFICE. 
 
 March 20, 1874. 
 
PREFATORY NOTE. 
 
 The "Synopsis of the Flora of Colorado," which the survey now pre- 
 sents to the public, has been prepared by Prof. Thomas C. Porter, of 
 Lafayette College, Easton, Pennsylvania, and Mr. John M. Coulter, one 
 of the assistants connected with the survey for the past two years. It 
 is intended to be a type of a series of "handbooks 7 ' of different branches 
 of natural history, to be published from time to time as a part of the 
 series of " Miscellaneous Publications," for the use of students all over 
 the country. 2fo. 3 of the series is now passing through the press, and 
 has been prepared by the eminent ornithologist, Dr. E. Cones, U. S. A. 
 It will form an octavo volume of several hundred pages, bringing the 
 whole subject of western ornitholgy up to date. The mountain regions 
 of Colorado are now so accessible to the traveling public, that this 
 synopsis will prove a most valuable aid to students, and travelers who 
 can, are annually visiting Colorado in great numbers. Indeed, the moun- 
 tainous portions more nearly resemble the Alpine districts of Central 
 Europe, not only in the scenery, but also in the different forms of veg- 
 etation. The tide of travel is fast turning in this direction, and the 
 demand for works ot this kind will necessarily be very great. It should 
 be stated here, that the obligations of the survey to Professor Porter, 
 for his share in the work, are very much increased from the fact that he 
 occupied several months in its preparation without compensation from 
 the Government. 
 
 F. V. HAYDEX, 
 United States Geologist. 
 
 OFFICE UNITED STATES GEOLOGICAL AND GEOGRAPHICAL 
 SURVEY OF THE TERRITORIES, January 14, 1874. 
 
LETTER TO THE GEOLOGIST-IN-CHARGE, 
 
 LAFAYETTE COLLEGE, 
 Easton, P#., January 15, 1874. 
 
 SIR: In lieu of a simple list of the plants obtained in Colorado during 
 the explorations of last summer, I have the honor to present YOU here- 
 with a condensed Synopsis of the Flora of the Territory, prepared in con- 
 junction with Prof. John M. Coulter of the Survey. 
 
 The work is based chiefly on collections made, in 1861 and succeeding 
 years, by Dr. C. C. Parry, whose indefatigable labors have added so 
 much to our knowledge of the flora of the region; in 1862, by Messrs. 
 Hall and Harbour; in 1867, by Dr. W. A. Bell, of Manitou Springs; in 
 1868, by Dr. F. Y. Hayden; in 1869, by B. H. Smith, Esq., of Denver; 
 in 1871, by Dr. George Smith and W. M. Canby, Esq.; in 1871 and 1873, 
 by Messrs. Meehan and Hooper; in 1872, by J. H. Eedfield, Esq.; in 
 1872 and 1873, by T. S. Brandegee, Esq., of Canon City, Kev. E. L. 
 Greene, of Pueblo, and T. C. Porter; and in 1873, by J. M. Coulter. 
 
 The plan followed in the Synopsis is that of Mr. Watson in his excel- 
 lent Catalogue, volume Y of Clarence King's Eeport. Descriptions are 
 given of all the orders, genera, and species not contained in Gray's 
 Manual, Chapman's Flora, and other botanies of the States east of the 
 Mississippi River. 
 
 For the elaboration of the Musci and Hepaticoe we are greatly indebted 
 to Leo Lesquereux, Esq., of Columbus, Ohio; of the Lichens, to Henry 
 Willey, Esq., of Arnherst, Mass.; and of the Fungi, to Charles H. Peck, 
 Esq., of Albany, IT. Y. 
 
 Thanks are due also to Dr. Gray and S. Watson, Esq., of Cambridge, 
 Mass., and Dr. George Thurber, of STew York City, for kindly assistance 
 in the determination of difficult and doubtful species; and to J. H. Red- 
 field, esq., of Philadelphia, for valuable services rendered. 
 
 To Mr. Brandegee, for his large and fine collections from the southern 
 part of the Territory, and to the Rev. E. L. Greene, for lists and speci- 
 mens of rare species, we are under special obligations. 
 
 References to the authorities consulted and used are to be found at 
 the proper places in the body of the work. 
 
 I regret that circumstances have prevented the completion of an intro- 
 ductory article on the geographical distribution of the plants embraced 
 in this synopsis. 
 
 THOS. C. PORTER. 
 
 Dr. F. Y. HAYDEN, U. S. Geologist. 
 
ADDITIONS. 
 
 After ASTRAGALUS KEXTROPHYTA, Gray, page 30, insert 
 
 ASTRAGALUS TEGETARIUS, Watson, King's Sep., vol. 5, p. 76, pi. 13. Perennial, dwarf' 
 caeopitose, canescent, with a silky pubescence; stems 2 // -6 // long, numerous and 
 branched, from a much-branched caudex, procumbent ; stipules membranous, mostly 
 acuminate, sheathing ; leaflets 3-5 pairs, 2"-3" long, linear, acute ; peduncles slender, 
 about equaling the leaves, 1-3-flowered ; flowers small, 2"-3 // long, ochroleucons, the 
 keel purplish ; calyx-teeth as long as the campanulate tube ; legume 2"-3 // long, char- 
 taceous, sessile, compressed, pubescent, ovate, oblong, straight, erect, 1-celled, 6-ovuled, 
 1-2-seeded. 
 
 Var. ? IMPLEXUS, \V. M. Canby. Leaflets in 2 pairs, crowded on the stems ; stipules 
 tipped with a short straight point ; flowers violet, the keel deep purple ; legumes 
 mostly smaller, l"-2" long, turgid, ovate, obtuse, 3-4-ovnled, 1- (rarely 2-) seeded. 
 South Park, Canby; Hoopes ; Porter. 
 
 After ZYGADENUS XUTTALLII, Gray, p. 133, insert 
 VERATRUM ALBUM, L. Middle Park, Pawy. 
 
CORRECTIONS. 
 
 Page 5. For " BERBERIS AQUIFOLIUM," put " B. AQUIFOLIUM." 
 
 19. For " EHUS TOXICODEXDROX," put " RHUS TOXICODEXDRON." 
 32. For "A. Lathyrw," (ninth line from bottom,) put "A Lathyrus." 
 42. For " KIBES FLORIDUM, L'Her.," put "KIBES FLORIDUM, L." 
 46. For " CE. Xiittallii, T. & G.," (sixth line from top,) put " (E. Nuttallii, Torr." 
 50. For " 0. brevistyla," (eighth line from top,) put " O. brevistylis." 
 63. For " SOLID AGO LAXCEOLATA, T. & G.," put " SOLIDAGO LAXCEOLATA, L." 
 70. For " HELIOPSIS LAEVIS, Pursh," put " HELIOPSIS LAEVIS, Pers." 
 94. For "MIMULUS FLORIBUXDUS, Gr.,"put "MIMULUS FLORIBUXDUS, Dougl." 
 94. For "DC. Prod. 10, p. 1, 331," (sixth line from bottom,) put "DC. Prod. 10, 
 p. 331." 
 
 114. For " ACERTES DECUMBEXS," put " ACERATES DECUMBEXS." 
 
 118. For "Dumont," after SU.EDA MARITIMA, put "Dumort." 
 
 124. For " SHEPHERDIA CAXADEXSIS, L v " put " SHEPHERDIA C AXADEXSIS, Nutt." 
 
 127. For " HUMULUS LUPULUS," put " H. LUPULUS." 
 
 130. For"Pixus ARISTATA, Engelm, DC. Prod., 7. c., p. 400," put " Pixus BAL- 
 FOURIAXA, Murr., (P. aristata, Engelm.") 
 
 136. For " MOXTAXUS," (third line from the top,) put " MOXTAXUS." 
 
 140. For "var. MINOR, Olney," put "var MINOR, Boott." 
 
 157. For " ORTHOTRICHUM HALLII, Sully. & Lesqx.," put " O. HALLU, Sull. & 
 Lesqx." 
 
 160. For "var. S. alpinum," (ninth line from top,) put "var. J. alpinum." 
 
 161. For "ENGYRIWM," (first line at top,) put "EUGYRIUM." 
 
 161. For " CTEIDIUM," (thirteenth line from bottom,) put " CTEINIDIUM." 
 163. For " EXDOCOCEUS," put " EXDOCOCCUS." 
 
 163. For " AGARICUS LACCATUS, Scap.," put A. LACCATUS, Scop." 
 
 164. For " LEXZITES SEPIRIA," put " L. SEPIARIA." 
 164. For "PuccixiA PORTERI," put "P. PORTERI." 
 
 164. For " Pec.," after PEZIZA VULCAXALIS, put " Peck." 
 
SYNOPSIS OF THE FLORA OF COLORADO. 
 
 RANUNCUL.ACEJE. 
 
 CLEMATIS DOUGLASTI, Hook. Stem simple, erect, l-2 high, 
 1 -flowered, sparingly hairy, woolly at the joints; leaves hairy, 2-3 pin- 
 natifid; sepals thick, deep purple within, paler externally, spreading at 
 tbe apex, much longer than the stamens. Common in the mountains at 
 middle elevations. Hall & Harbour, 2; Dr. Smith; Meehan; Porter; 
 Coulter. 
 
 CLEMATIS SCOTTIT, Porter (n. sp.) More or less villous, with soft, 
 spreading hairs; bushy, branching from a suffrutescent base, branches 
 erect, 9'-18', not climbing; leaves opposite on rather long petioles, pin- 
 nate; leaflets five pairs, ovate or lanceolate, acute or acuminate, petiolu- 
 late, strongly veined beneath, lower ones often 2-3 cleft; flowers axillary 
 and terminal, nodding, peduncles 3'-6'; sepals 4, ovate, with reflexed 
 summits nearly 1' long, dark or brownish purple, thickish but not 
 leathery as in C. Viorna, more or less tomentose on the outside; carpels 
 silky pubescent, with densely plumose tails I'-IJ' in length. Named for 
 Hon. John Scott, who collected it in 1872, at Soda Springs, 35 miles 
 w^est of Canon City. Brandegee, Fremont County, in fruit. Redfield. 
 
 CLEMATIS LIGKJSTICIFOLIA, Nutt. Climbing, somewhat pubescent, 
 flowers white, in paniculate corymbs, direcious ; leaves pinnate and ter- 
 nate, (mostly 5-foliolate,) the coriaceous leaflets oblong, acute, mostly 
 somewhat lanceolate-cuiieate, incisely toothed and tritid; petals and 
 stamens equal in length ; carpels with long plumose tails. Common along 
 water-courses, at the base of the foot-hills, and ascending the ravines, 
 climbing over bushes.and producing a great abundance of white flowers. 
 Hall & Harbour, 3; Dr. Smith; Porter ; Redfield. 
 
 CLEMATIS ALPINA, Mill., var. OCHOTENSIS, Gr. DC. Prod., 1, p. 10. 
 Leaves biternately divided, segments ovate or oblong lanceolate, acu- 
 minate, frequently three-lobed, irregularly toothed ; sepals 4, lance-ovate 
 purplish blue; antheriferous petals linear. A trailing, woody-stemmed 
 plant, 6' high, nearly glabrous; carpels glabrous; tails !' long, very 
 finely plumose. Georgetown, Dr. Smith. Chiaun Canon, Porter. Clear 
 Creek Canon, at 9,000 feet altitude, Coulter. 
 
 THALICTRTJM ALPINUM, L. Stem simple, 2'-8' high, slightly pubes- 
 cent, scapiform; leaves mostly radical, 2-3 ternate; leaflets roundish, 
 about y long, somewhat lobed, crenately toothed; flowers perfect, nod- 
 ding in a simple raceme; pedicels slender; sepals 4, oblong; stigmas 
 thick and pubescent; carpels ovate, sessile. In damp, mossy ground, 
 at 9 to 10,000 feet altitude, rare. Hall & Harbour, 10. Cache Creek, near 
 Gi anite, Porter. 
 
 THALICTRTJM PURPTJRASCENS, L. Anthers rather shorter than in 
 eastern specimens. Canon City and Wet Mountain Valley, Brandegee. 
 Foot-hills along the Platte Eiver, June 28, Coulter. In flower. 
 
 THALICTRTJM SPARSIFLORUM, Turcz. (T. clamtum, Hook., not of 
 DC.) l-2 high; panicle loosely few flowered, long-pediceled, flowers 
 1 F c 
 
v ixiv 
 
 OF COLORADO. 
 
 perfect; filaments clavate; antbers elliptical, pointless; ovaries 8-10; 
 carpels compressed, dimidiate, not striate, thrice shorter than the per- 
 sistent style ; upper leaves sessile, 2-3 ternate, leaflets often small. 
 Subalpine. Hall & Harbour, 9; Parry, 1872. 
 
 THALICTRUM FENDLERI, Eng. Plant. FendL, p. 5. Dioecious, glabrous ; 
 leaves petioled, or the uppermost sessile ; leaflets round-cordate, 3-lobed ; 
 filaments scarcely thickened at the apex; anthers long nmcronate ; 
 carpels sessile, obliquely ovate, compressed, sharp-edged, with 4-G 
 strong lateral ribs, three times longer than the recurved style. In 
 other respects like T. Cornuti. Common in the mountains at middle ele- 
 vations. Hall & Harbour, 8; Dr. Smith; Canby; Brandegee; Parry; 
 Porter; Coulter. On Mount Elbert, near Twin Lakes, at 12,000 feet 
 altitude. 
 
 ANEMONE PATENS L., var. NUTTALLIANA, Gr. On the plains and 
 extending up into the mountains. Hall & Harbour, 4; B. H. Smith; 
 Meehan; Parry ; Porter ; Coulter. Gray's Peak, at 12,000 feet altitude 
 Redfield, 
 
 ANEMONE CAROLINIANA, Walt. Hall & Harbour, 6. On the plains. 
 
 ANEMONE PARVIFLORA, Michx. Near Mount Lincoln, July 15, 
 Coulter. 
 
 ANEMONE MULTIFIDA, DC. Found in the mountains at middle eleva- 
 tions and upward. Hall & Harbour, 5; B. H. Smith; Porter; Parry; 
 Coulter. 
 
 ANEMONE CYLINDRICA, Gr. Green Horn Mountains, June, 1873, 
 Brandegee. Idaho Springs, Redfield. 
 
 ANEMONE PENNSYLVANIA, L. Common in the foot-hills. Dr. Smith; 
 B. H. Smith; Meehan; Brandegee; Coulter. Colorado Springs, Redfield. 
 
 ANEMONE NARCISSIFLORA, L. Villous, leaves palmately 3-5 parted, 
 segments cuneiform, incisely many-cleft, lobes linear, acute ; involucre 
 somewhat similar, sessile, leaflets 3-5 cleft; pedicels several, um- 
 beled, leafless, 1-flowered ; flowers white ; carpels without tails, much 
 compressed, roundish oval, glabrous. Alpine. Hall & Harbour, 1 ; 
 Mount Lincoln at 13,500 feet altitude, July 9, Coulter. 
 
 MYOSURTJS MINIMUS, L. South Park, Hall & Harbour, 20. 
 
 EANUNCULUS AQUATILIS, L., var. TRIOHOPHYLLUS, Chaix. Common 
 in stagnant or slow-flowing waters in the foot-hills. Brandegee; Coulter. 
 
 Var. sTAGrNATiLis, DC. (R. divaricatus, Sehrank.) Ponds and slow 
 streams at middle elevations. Dr. Smith; Brandegee; Coulter. 
 
 RANUNCULUS ALISM^EFOLIUS, Geyer, var. MONTANUS, Watson. 
 Low, 6' high, alpine, stems ascending, leaves entire ; carpels rather 
 shorter-beaked than usual in the species. Parry 79 ; Yasey 15. Sierra 
 Madre Range, Coulter. 
 
 RANUNCULUS FLAMMULA, L., var. REPTANS, Gr. Hall & Harbour, IS. 
 
 RANUNCULUS GLABERRIMUS, Hook. Very glabrous ; stems 1 (some- 
 times 2) from a root of thickened fasciculated fibers, few-flowered, 
 S'-S'high; radical leaves elliptical, variable in breadth, tapering into 
 long, slender petioles, mostly entire, rarely cleft, cauline leaves sessile, 
 usually 2-3 cleft ; peduncles 1-flowered, those of the axils elongated 
 and divaricate ; flowers 6" broad ; petals obovate, twice as long as the 
 sepals ; heads of carpels globose ; achenia with a short curved beak, 
 puberulent, resembling those of R. affinis. This seems to be the plant 
 referred to by Dr. Gray in his Enumeration of Hall and Harbour's col- 
 
SYNOPSIS OF THE FLORA OF COLORADO. 3 
 
 lection in the note attached to Ko. 19. Kear Long's Peak, June 1, at 
 9,000 feet altitude, Coulter. 
 
 RANUNCULUS CYMBALARIA, Pursh. Common in marshy 'ground 
 on the plains and in the mountains. Hall & Harbour, 11 ; Dr. Smith ; 
 B. H Smith ; Porter ; Brandegee ; Coulter. 
 
 EANUNCULUS AFFINIS, E. Br. Radical leaves petioled, usually 
 pedately multitid ; cauline ones subsessile, digitate, with broadly linear 
 lobes : stem erect, few-flowered ; carpels with recurved beaks in oblong 
 cylindrical heads, more or less pubescent throughout. Yar. LEIOCARPUS, 
 Trautv. Lower leaves usually lobed or crenate ; from 8 / -12 / high ; 
 flowers small ; carpels smooth or somewhat pubescent. Hall & Harbour, 
 15; Vasey, 13; B. H Smith; Porter; Coulter. 
 
 Yar. CARDIOPHYLLUS, Gr. (JR. cardiophyllus, Hook.) Hirsutely pubes- 
 cent, radical leaves round-cordate, undivided or many cleft ; cauline 
 ones palmately many-cleft ; flower V in diameter. Hall & Harbour, 16. 
 
 EANUNCULUS KUTTALLII, Gr. (Cyrtorrhynca ranunculina, Xutt. Fl. N. 
 A w.l, p. 26.) Gra, y's En. Hall & Harbo ur, p. 56. Note. Smooth, 6'-8' high ; 
 root fascicled ; radical leaves biternately divided, segments 3-5 parted, 
 lobes oblong or linear, sometimes 2-3 cleft ; branches subtended by a 
 small leaf, few-flowered ; petals spatulate, yellow, a little longer than 
 the broader sepals, which are also yellow, thickened above the base - f 
 style long, slender, incurved ; carpels rather few, collected into a globose 
 head, glabrous, cylindrical-oblong, grooved, many-nerved ; stigma sub- 
 ulate. JQTrt/f & Harbour, 13. Near Long's Peak, June 1, at 9,000 feefc 
 altitude, Coulter. 
 
 EANUNCULUS SCELERATUS, L. Platte Eiver, Hall. Cherry Creek f 
 Dr. Smith. Bear Creek Caiion, Coulter. 
 
 EANUNCULUS MULTEFIDUS, Pursh., var. REPENS, Hook. Creeping; 
 leaves all round-reuiforin, palmately 3-5 cleft. Wilson's Creek, July,. 
 Brandegee. 
 
 EANUNCULUS HYPERBOREUS, Eottb., var. NATANS, C. A. Meyer. Stem 
 filiform, creeping; leaves glabrous, petioled, 3 cleft; lobes oval-oblong, 
 divaricate, the lateral ones somewhat 2 cleft, middle one entire; sheaths 
 bi-auriculate at base; heads of carpels globose, compact; style want- 
 ing. Much resembles forms of the preceding, but distinguished by the 
 absence of styles. In swamps at middle elevations. Hall & Harbour, 
 12. Clear Creek, Coulter. 
 
 EANUNCULUS PYGM^US, Wahl. Stem erect, never creeping, l'-2' 
 high, 1-flowered; leaves glabrous, 3-5 cleft; radical ones petioled, cau- 
 line ones sessile; calyx glabrous, longer than the somewhat reflexed pet- 
 als ; heads oblong; carpels subglobose, not margined at the back, pointed 
 with a short hooked style. Mount Evans, on dry ground, at 13,000 feet 
 altitude, Greene. 
 
 EANUNCULUS NIVALIS, E. Br., var. ESCHSCHOLTZII, Watson. (R. 
 Eschscholtzu. Schlecht.) Radical leaves 3-parted, the divisions lobed, 
 ciliate ; stem about 1-flowered ; calyx hirsute, with whitish hairs, shorter 
 than the petals; style shorter than the achenia. Hall & Harbour, 14; 
 Vasey, 17 ; Parry. 
 
 EANUNCULUS ADONEUS, Gr. Gray's En. PL Hall & Harbour, p. 17. 
 Xote. Low, sparsely villous, becoming glabrous; root fasciculate, fibrous; 
 stems branching from the base, 1-3 leaved above, sometimes erect, very 
 simple, 1-flowered, but sometimes sarmentose-decumbent, and 2-3 flow- 
 ered; leaves twice pedately parted, segments narrowly linear; petioles 
 scarious, base dilated; peduncle short; corolla guldens-yellow, often ex- 
 
4 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ceeding I 7 in diameter; petals flabelliform, twice exceeding the sub-villous 
 oval sepals ; basilar scale small, adnate ; acbenia crowded in an oval 
 head, smooth, turgid ; beak rather long, ensiform, scariotis-winged on 
 each side. In the high alpine region, close to the snow, Hall & Harbour, 
 17 ; Parry. Chicago Lakes at 12,000 feet altitude, June, Coulter. Gray's 
 Peak, 13,000 feet, Redfield. 
 
 BANUNCULUS REPENS, L. Meehan ; Greene; Porter. 
 
 KANUNCULUS PENNSYLVANICUS, L. Platte Kiver near Denver, Dr. 
 Smith. Wet Mountain Valley, Redfield. 
 
 CALTHA LEPTOSEPALA, DC. Stem 1-leaved or naked, mostly 1- 
 flowered, erect, 3'-l high ; radical leaves on long petioles, ovate-cor- 
 date, obscurely crenate; sepals 8-10, oblong, white or tinged with blue; 
 style short and recurved ; stigma obtuse ; carpels 8-10, oblong. Very 
 abundant in subalpiue swamps. An excellent pot-herb. Hali & Har- 
 bour, 21; Parry ; Meehan; Brandegee; Coulter. May to September. 
 
 TROLLIUS LAXUS, Salisb. Associated with the preceding, but less 
 common. Hall & Harbour, 22; Brandegee; Coulter. Gray's Peak, 
 Redfield. June and July. 
 
 AQUILEGIA VULGARIS, L., var. BREVISTYLA Gr. (A. bremstyla, Hook.) 
 Stems low, 6'-$' high, spreading; leaves bi-ternate; leaflets 3-lobed, 
 crenate, 6"-9" long, creuatures ovate, rotund ; flowers small, blue, 
 about 6" long including the spur ; sepals oblong-ovate ; petals a little 
 exceeding the stamens; spurs hooked at the tip ; styles shorter, included. 
 Hall & Harbour, 23. Mountains near Pike's Peak, Canby ; Meehan. 
 
 AQUILEGIA CANADENSIS, L. Styles longer than the stamens. Along 
 subalpiue rivulets. Mount Elbert near Twin Lakes, Porter. La Plata 
 Mountain at 11,000 feet altitude, July, Coulter. 
 
 AQUILEGIA C^ERULEA, Torr. Ann. N. T. Lye. 2, p. 164. Spur straight, 
 very slender, l%'-2' ; sepals rhomboid-ovate, acute, longer than the 
 ipetals; stamens and style shorter than the coralla; stern l-3 high, 
 glabrous, few-flowered ; flowers 2'-2 y in diameter, pale blue, some- 
 times ochroleucous, pinkish or white. Leaves mostly radical, glaucous 
 beneath ; leaflets deeply cleft. On shaded mountain-slopes from 7-11 ,000 
 feet altitude. A very beautiful and showy plant in flower. June 
 to September. Hall & Harbour, 24; Parry; Dr. Smith; Porter; Coulter. 
 Gray's Peak, Redfield. 
 
 AQUILEGIA CHRYSANTHA, Gr. Proc. Am. Acad. 8, p. 621, (A. leptocera. 
 Nutt., v&r.flava. Gr. PL Wright. 2, p. 9J Smaller than the former and 
 more slender in stems and foliage ; peduncles often pubescent ; flowers 
 deep yellow, spurs more slender; sepals abdut 9" long, lanceolate-oblong, 
 longer but not broader than the limb of the petals. Grand Canon of 
 the Arkansas, June 3, Brandegee. 
 
 DELPHINIUM ELATUM, L., var. (?) OCCIDENTALS, Watson. Kintfs 
 Rep., vol. 5, p. 11. Tall, 5 high, glabrous or densely pubescent above; 
 leaves deeply 3-5 cleft, divisions broadly cuneate, somewhat 3-lobed and 
 sparingly gashed-toothed, the teeth narrowing abruptly to a callous 
 point; racemes many-flowered, often densely so, simple or pauicled; 
 flowers pubescent, sometimes white; spur longer than the sepals; 
 lower petals broad, slightly notched, often erosely-deutate, more or less 
 densely bearded, the claw spurred at base. In Coulter's specimens from 
 the Twin Lakes the spur is shorter than the sepals and the lower petals 
 are very acute; stems very stout; flowers large, in crowded racemes. 
 Hall & Harbour, 25; Coulter. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 5 
 
 DELPHINIUM SCOPULORUM, Or. PL WHgJit. 2, p. 9. Puberulent or 
 glabrous ; stein leafy, simple, l-2 high ; petioles dilated at base ; 
 leaves orbicular iu outline, 3-5 parted, divisions deeply 2-3-cleft, seg- 
 ments uiauy-lobed or laciniate ; raceme strict ; many-flowered ; flowers 
 smoothish ; spur longer than the sepals ; lower petals bifid, sparingly 
 bearded within; claw spurred at base; carpels 3, erect, nearly glabrous. 
 Wet Mountain Valley, Brandegee. Hall & Harbour, 26. 
 
 YAK! Stems 2-5 high, stout, panicled; racemes slender, elongated; 
 flowers scattered, small ; spur straight, ascending. Ute Pass, Porter. 
 Wet Mountain Valley, Brandegee. 
 
 DELPHINIUM AZUREUM, Michx. Canon City, June 26, Brandegee. 
 
 DELPHINIUM MENZIESII, DC. More or less pubescent; stems stout, 
 l-2 high, leaves orbicular in outline, 5-7 parted, divisions 2-3 
 cleft; bracts mostly entire, lower ones 3-cleft; raceme simple, few to 
 many-flowered; spur usually curved, longer than the sepals, ascending; 
 capsules glabrous; root grumous. Closely resembles the eastern D. tri- 
 corne. Hall & Harbour, 28. In the foot-hills west of Denver, Coulter. 
 
 ACONITUM NASUTUM, Fisch. Petals erect, with the spur arcuate; 
 galea conical, prone; spur descending; raceme somewhat panicled ; divis- 
 ions of the leaves rather broad, coarsely laciniate-toothed. Stem 
 stout, 3-6 high, pubescent above ; flowers purple or white. Hall & 
 Harbour, 29; Parry. Weston's Pass, July 18, at 11,000 feet altitude, 
 Coulter. 
 
 ACT JEA SPICATA, L., var. ARGUTA, Torr. (A. arguta, Nutt. Fl. N. Am., 
 p. 35.) Stouter than A. spicata, var. rubra of Gray's Manual ; leaflets 
 larger and more serrated; petals oblong, obtuse; otherwise nearly the 
 same. Mountains near Denver, Dr. Smith. Oak Creek, Fremont County, 
 Brandegee. St. Vrain Canon, Coulter. 
 
 BERBERIDACEvE. 
 
 BERBERIS AquiFOLtriM, Pursh. Leaflets 1-6 pairs, not approxi- 
 mated to the base of the petiole, coriaceous, ovate-lanceolate or ellipti- 
 cal oblong, oblique and slightly cordate at base, margin repand with 
 thorny or spinulose cuspidate teeth ; racemes short, nearly erect, clus- 
 tered; filaments 2-toothed; berries dark purple. An uuder-shrub 2-5 
 high, branching, the branches often procumbent. Leaflets li'-3' long, 
 obscurely reticulated on both sides, the veins all rising from the 
 midrib. Hall d' Harbour, 30. Head-waters of the Arkansas, Porter. 
 Kear Long's Peak, Coulter. 
 
 NYMPHLEACEJE. 
 
 XUPHAR POLYSEPALUM, Eng. Proc. Saint Louis Acad., April 17, 1865, 
 p. 282. Leaves broadly ovate, deeply cordate, with a narrow sinus; 
 sepals 9-12, concave, the middle ones very large ; petals 12-18, spatulate, 
 retuse; stamens very numerous; anthers truncate, appendiculate at the 
 apex, equaling or shorter than the at-length recurved filaments; stig- 
 matic rays of the striate, urceolate ovary 13-21, almost reaching the 
 crenate margin of the umbilicate disk, neither constricted nor beaked 
 toward the apex. Leaves longer in proportion to their breadth than 
 those of JV. adrena ; sinus narrower and more closed; flowers very large ; 
 outer sepals greenish and yellowish, inner ones more or less tinged with 
 red. Mountain-lakes around Long's Peak, Parry. Cold Lake in the 
 Sierra Madre Range, at 10.000 feet altitude, Coulter. 
 
6 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 PAPAVERACE.E. 
 
 PAP AVER ALPINUM, L. Scape one-flowered, 2 / -3 / high, naked, hispid 
 as well as the calyx with brownish hairs ; leaves lance-ovate in outline, 
 deeply pinnatifid, divisions rarely incised ; flower nodding in the bud, 
 6"-8" in diameter; petals lemon-yellow ; capsule obovate, hispid. Near- 
 est VSLT. flaviflorum, Koch. Fl. Germ. 1, p. 25. Alpine. Hall; Parry, 
 147 ; Meehan. California Gulch at 12,500 feet altitude, Coulter. 
 
 ARGEMONE MEXIOANA, L. Most common on the plains along the 
 fout-hills. Stout, 2-3 high; flowers large, 2 / -3 / in' diameter, white, 
 very rarely yellow. Hall; Dr. Smith; B. H. Smith; Porter; Coulter. 
 
 FUMARIACE^. 
 
 CORYDALIS AUREA, L., var. CURVISILIQUA, Eng. Gommou in the 
 mountains. Dr. Smith; B. H. Smith; Canby; Porter; Coulter. 
 
 CRUCIFER^E. 
 
 NASTURTIUM OFFICINALE, E. Br, Platte Eiver near Denver, Dr. 
 Smith. Golden City, Greene. 
 
 NASTURTIUM SINUATUM, Nutt. Platte Eiver near Denver, Dr. 
 Smith. 
 
 NASTURTIUM OBTUSUM, Nutt. Hall & Harbour, 32; Porter. Oro 
 City, Coulter. 
 
 JNASTURTIUM PALUSTRE, D. C. Dr. Smith; Porter; Brandegee. Near 
 Denver, Coulter ; Red field. 
 
 ARIBIS HIRSUTA, Scop. Common everywhere in Colorado. Dr. 
 Smith; Meehan; Brandegee; Coulter; Red field. 
 
 ARABIS DRUMMONDII, Gr. Very variable; stem strict or slender and 
 flexuous; glabrous or covered with a stellate pubescence; pods erect 
 and straight or spreading and arcuate. Dr. Smith; Coulter. 
 
 Yar. ALPINA, Watson. A reduced alpine or subalpine form with a 
 few crowded purple or white flowers; glabrous or stellately pubescent. 
 White House Mountain, August, at 11,000 feet altitude, Coulter. 
 
 ARABIS RETROFRACTA, Grab. (Streptanthus angustifoUus, Nutt.) 
 Stems several from one root, 12 / -18 / high, virgate, branching near the 
 summit; radical leaves lanceolate, linear, sparingly hirsute, lower can- 
 line much broader, closely amplexicaul, upper ones smaller, oblong- 
 lanceolate, smooth, erect; flowers small, pale red; petals oblong-oval, 
 the limb exserted ; sepals short, smooth, almost coriaceous. Hall & Har- 
 bour, 35. 
 
 CARDAMINE CORDIFOLIA, Gr. PL FendL, p. 8. Stem l-3 high, 
 erect, simple, from a fibrous, creeping rhizoma, glabrous or pilose at 
 base, leafy to the top; leaves all petioled, cordate, sparingly repand-den- 
 tate or angular-toothed, ciliate, 2 / -4 / in diameter ; lowest orbicular ; 
 the upper triangular-cordate, sub-acuminate ; flowers rather large, 
 white; siliques erect, 2 to 3 times longer than the pedicels. Common in 
 swamps at middle elevations. Hall & Harbour, 34; Dr. Smith; Parry ; 
 Median; Coulter. Sangre de Cristo Eauge, Red field. 
 
 CARDAMINE HIRSUTA, L. Hall & Harbour, 33. 
 
 YESICARIA STENOPHYLLA, Gr. PL Lindh., 2, p. 149. Low, branches 
 several, spreading form a thick, woody caudex, a span or less high ; leaves 
 linear or linear spatulate, crowded; silvery pubescent, mostly entire. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 7 
 
 raceme densely many-flowered ; flowers golden yellow; silicle mem- 
 branaceous, very smooth, equaling or a little longer than the style. 
 Canon City, August 13, 1872, in fruit, Brandeyee. Bluffs at Pueblo, 
 Greene. 
 
 VESICARI A LUDOVICIANA, DC. Canesceut with a stellate pubescence ; 
 stem 6'-8' high, simple or somewhat branched above ; radical leaves 
 spatulate, entire, obtuse, cauline linear ; flowers golden yellow ; petals 
 obovate ; style slender, longer than the ovary and nearly as long as the 
 obovate, globose, hairy silicle. Platte Eiver near Denver, Dr. Smith ; 
 Coulter. 
 
 YESICARIA MONTANA, Gr. Proc. Acad. Phil, March, 1863, p. 58. 
 Silvery canescent; stems spreading from a perennial root, leafy; leaves 
 spatulate; the radical subovate, petioled, sometimes 1-2 toothed; fruit- 
 ing raceme elongated, silicle oval or ellipsoidal, whitish-pubescent, 
 a little longer than the slender style, a little shorter than the upwardly 
 curving, spreading pedicel. Well marked by the oval or oblong silicle, 
 in some specimens 3" long but scarcely half that breadth, hoary with a 
 fine stellate pubescence; seeds 4 or 6 in each cell, wingless; petals 
 spatulate, light yellow; filaments filiform. Hall & Harbour, 49; B. H. 
 Smith; Meehan; Porter. Found in the mountains at middle elevations. 
 
 PHYSARiA 1 DIDYMOCARPA, Gr. (Vesicaria, Hook.) Canescent with a 
 stellate pubescence; radical leaves broadly obovate-spatulate, occasion- 
 ally lyrate, cauline spatulate-lanceolate, mostly entire ; silicjues large, 
 globose-didymous, deeply emarginate above and below. A low, de- 
 cumbent, profusely branched perennial. Flower showy; petals oblong- 
 spatulate, exceeding the oblong sepals ; silicles varying in size, the lobes 
 usually approximate, sometimes considerably divergent; septum lance- 
 olate. Hall d; Harbour, 47 5 Dr. Smith; B. H. Smith. Long's Peak, 
 May 27, Coulter. 
 
 DRABA ALPINA, L. Eather rigid ; scapes naked, mostly some- 
 what hirsute ; leaves spatulate-lanceolate, plane, more or less pilose 
 with branching hairs; petals yellow, more than twice the length of the 
 calyx : silicles somewhat corytubed, oblong-elliptical ; style very short. 
 Dwarf, I"-! 7 high: alpine and subalpine. very variable. Mount Lincoln 
 at 13,000 feet altitude, July, iu flower, Coulter. Gray's Peak at 12,000 
 feet, Red field. 
 
 DRABA ArREA, Vahl. More or less pubescent; stem erect, leafy: 
 leaves lanceolate or ovate-lanceolate, entire or toothed; corymbs ter- 
 minal and axillary; silicles oblong-lanceolate, pubescent, exceeding the 
 pedicels; petals yellow, emargiuate; style rather short. Variable. In 
 the mountains from 7-14,000 feet altitude. Hall & Harbour, 44; Dr. 
 Smith; Heehan ; Brandeyee; Coulter. Gray's Peak, Reel field. 
 
 DRABA STREPTOCARPA, Gr. SUl Jour. 1862, vol. 33, p. 13. A span 
 high; radical leaves rosulate, spatulate-lanceolate, acutish, attenuated 
 into a large-margined petiole, J'-l.V long, cauline about ', oblong or ob- 
 long-lanceolate, very entire, sessile ; hairs simple or simply forked, long, 
 rigid, shaggy, spreading; racemes often paniculate, many-flowered; pe- 
 tals golden yellow, twice longer than the calyx, mostly retuse or emar- 
 ginate; style a little shorter than the ovary; stigma emarginate, cap- 
 itate; fructiferous pedicels 3" long, more or less spreading; silicles J'--' 
 long, linear or oblong-ovate, minutely or strongly hispid-ciliate, usually 
 much twisted, turns often 3-4; style long, $"-2". Easily distinguished 
 
 'PHYSAKIA, Xutt. Characters as iu Vesicaria, except that the silicle is didymous, 
 much inflated, nieinbran.aeeous, and the cotyledons contrary to the narrow septum. 
 
8 SYNOPSIS OP THE FLORA OF COLORADO. 
 
 from D. aurea, which it most resembles, by its lack of stellular pube- 
 scence, longer styles and the more twisted silicles. In the mountains 
 from 7-14,000 feet altitude. Alpine forms much dwarfed. Hall & Har- 
 bour,^; Parry, Canby; Brandegee ; Coulter. 
 
 DRABA CRASSIFOLIA, Grah. Scape naked or with a single leaf, l'-3' 
 high ; leaves lanceolate-linear, entire or somewhat serrate, ciliate with 
 simple hairs ; calyx and pedicels glabrous; flowers small, yellow or white ; 
 petals a little exceeding the calyx, retuse; silicles ovate-elliptical, glab- 
 rous. Hall & Harbour, 41. Sangre de Cristo Pass, Brandegee. 
 
 DRABA NEMOROSA, L., var. LUTEA, Gr. (D. lutea, DC.) ' Pubescent ; 
 stem branching, leafy, 6'-15' high, very slender, sometimes branching 
 from the base ; pubescence simple or forked ; leaves oval, cauline ones 
 lanceolate, toothed; flowers very small, yellow; petals about twice as 
 long as the calyx; style none; silicles oblong-elliptical, rather obtuse, 
 glabrous, about 4" long, one-third to one-half the length of the slender 
 spreading pedicels. Alpine and subalpiue. Hall & Harbour , 42. Sierra 
 Madre Range at 11-13,000 feet altitude, Coulter. 
 
 Var. ALPINA, Porter. Dwarf, 2'-3' high, branching from the base ; 
 fruiting raceme short; flowers white; pedicels shorter than the silicles; 
 stigmas distinctly 2-lobed. Mount Lincoln, at 13,000 feet altitude, July, 
 Coulter. 
 
 DRABA CUNEIFOLIA, Nutt. Canon City, Brandegee. 
 
 SISYMBBIUM CAKESCENS, Nutt. Very variable in the division of the 
 leaves and the amount of pubescence, the latter always branched. Very 
 common on the plains and in the mountains at all heights. Hall <fc 
 Harbour, 40; Dr. Smith; Meehan; Porter; Brandegee; Coulter. 
 
 SISYMBRIUM GLAUCUM, Kutt. Annual, glaucous, about 1 high, 
 much branched, leaves entire, radical ones small, spatulate, cauline 
 ovate, sagittate and clasping, rather acute; flowers minute, pale pur pie ; 
 petals cuneate-oblong, twice as long as the sepals ; silicles ' long, gla- 
 brous; style almost none; seeds in a single or partly in a double series: 
 cotyledons decidedly incumbent. 
 
 South Park, July, 1872, Porter. A slender dwarf- form, 3'-4' in height, 
 with smaller leaves and shorter siliques. 
 
 SMELOWSKIA 1 CAL.YCINA, Meyer. (Hutchinsia, Desv.) Leaves mostly 
 radical on long petioles, deeply pinnatifid; flowers white, in dense 
 corymbs, the limb of the petal roundish; calyx persistent; stem 4'-6' 
 high, elongating in fruit. Alpine and subalpiue. Hall & Harbour, 43. 
 Mount Lincoln at 1,300 feet altitude, July, Coulter. 
 
 ERYSIMUM CHEIRANTHOIDES, I^.Hall & Harbour, 38. Twin Lakes 
 at 9,000 feet altitude, Porter. 
 
 ERYSIMUM ASPERUM, DC., var. ARKANSANUM, Nutt. Variable and 
 abundant on the plains and mountains. Hall & Harbour, 39; Dr. 
 Smith; Porter; Coulter. 
 
 Var. PUMILUM, Watson. King's Rep., vol. 5, p. 24. (E. pumilum, 
 ]N~utt.) Somewhat scabrous, stems 2'-4' high; leaves linear, all entire; 
 flowers pale yellow, conspicuous; petals longer than the calyx; stigma 
 small, nearly entire; pedicels very short; siliques flatly 4-sided, 3' long, 
 erect. Hall & Harbour, 39. Alpine; 
 
 1 SMELOWSKIA, C. A. Meyer. Sepals short, equal; silicle rather short, narrowed at 
 each end, somewhat tetragonal or laterally compressed; valves concave, submembru- 
 nous, with included filiform replum and membranous septum; style short and stigma 
 simple. Seeds few in one row, immarginate, funiculus setaceous, free; cotyledons in- 
 cumbent. Perennial hoary, toinentose subca'spitose herbs, with 1-2 piiiuatinxL leaves 
 and bractless flowers. Benth. and Hook* 
 
SYNOPSIS OF THE FLORA OF COLORADO. 9 
 
 HESPERIS PALLASII, Torr. & Gray. FL X. Am. 2, p. 666. Sparsely 
 pubescent with closely appressed hairs fixed by the middle and acute at 
 each end, minutely scabrous under the microscope ; stems 3'-6' high, 
 from a fusiform root ; radical leaves numerous, linear or lanceolate-lin- 
 ear, sparingly toothed, I'-IJ 7 long, tapering into a petiole; raceme 
 short ; pedicels much shorter than the flowers; flowers large for the size 
 of the plant; upper cauline leaves linear; sepals oblong, obtuse, with 
 scarions margins, gibbous at base, 4" long ; petals with a long, broad, 
 pale-colored claw which exceeds the sepals ; limb round-obovate, purple; 
 anthers cordate at base ; ovary hairy ; stigma capitate, somewhat 2- 
 lobed. The blunt lobes of the capitate stigma, which do not connive, 
 separate this plant from the genus Hesperis. In all its other characters 
 it seems to accord well with the brief description of Pursh's Cheiranthus 
 PallasiL The specimens are in flower only, with no mature siliques. 
 Chicago Lakes at 12,000 feet altitude, June, Coulter. 
 
 STANLEYA l PIISTS T ATLFIDA, Nutt. (8. integrifolia, James.) Stems 2 
 to 3 high, often several from one root; lower leaves ly rate-pin natitid 
 or nearly entire, large, sometimes minutely pubescent beneath ; upper 
 leaves entire, narrowed at the base into a slender petiole; filaments 
 very long and slender, pubescent below with a glandular enlargement 
 at the base ; siliques 2' long, somewhat torulose, twice longer than the 
 stipe. Hall & Harbour, 50; Coulter. Colorado City, Porter. 
 
 ^HELYPODIU^I rsTEGrRtFOLioi, Eudl. (Pachypodium, Xutt.) Stem te- 
 rete, smooth, 3-5 high, attenuated upward and sending out numerous 
 branches toward the summit ; leaves entire, radical ones petioled, ob- 
 long-elliptical, cauline lanceolate, sessile, uppermost nearly linear; 
 flowers almost corymbose, crowded, pale rose-color ; pedicels V long, 
 almost horizontal, twice as long as the calyx ; petals spatulate, obovate; 
 silique short, abruptly pointed, on a short stipe. South Park, July, 
 Porter. \Yet Mountain Valley, Brandcgee. Hall & Harbour, 51. 
 
 THELYPODroi LiXEARLFOLiUM. Gr. (Streptanthus, Gr. PL Fendl., p. 
 7.J Very glabrous, 1 or more high, from an annual or biennial root 
 often branched from the base, erect, paniculate at the top ; leaves linear, 
 or the lower lanceolate, acutish, very entire, attenuate at base, sessile, 
 somewhat rigid, pale, lJ'-2' long; sepals turning purplish; petals obo- 
 vate, rose-purple, j' or less; claws scarcely twice longer than the lax 
 calyx; siliques erect, on spreading pedicels, very slender, teretish, 2' to 
 2.V long, apiculate with a very short style; valves carinate, 1-nerved; 
 seeds oblong, without margins. Canon City and Wet Mountain Valley, 
 Brandegee. 
 
 THELYPODIUM \VRIGHTII, Gr. PL Wright 1, p. 7. Stem 2-3 high, 
 from a biennial or annual root; leaves broadly or narrowly lanceolate, 
 2' to 4' long, repaud-dentate or denticulate, all narrowed into a short 
 petiole; flowering racemes short and dense, fruiting raceme moderate- 
 
 1 STAXLEYA, Xutt. Sepals long, spreading. Petals narrowed, elongated, with long 
 claws. Anthers twisted : siliques long-stipitate, slender, nearly terete, subcompres.sed ; 
 valves 1-nerved; style short or none; stigma simple. Seeds in one row, oblong, pendu- 
 lous: cotyledons incumbent. Perennial, glabrous, glaucous; flowers yellow, in long, 
 strict, many flowered, bractless racemes. Benth. ami Hook. 
 
 - THELYPODIUM. Endl. Sepals elongated, equal at base, often colored. Petals long, lin- 
 ear, or with a plane lamina, unguiculate. Anthers linear. Silii[iie sessile or with a 
 very short thick stipe, linear, sub terete or somewhat compressed, torulose, not greatly 
 elongated: valves convex, subcarinately 1-uerved: style rather short: stigma nearly 
 entire. Seeds in one row, oblong, somewhat compressed, immarginate or scarcely mar- 
 gined; cotyledons more or less incumbent. Annual or perennial, with spicately 
 racerned bractless white or rose-colored flowers; slique 1 to 2$' long. S. Watson, 
 
10 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ly elongated, 4'-5' long; pedicels divaricate, 6" long; petals scarcely 
 exceeding the calyx; siliques slender, 2' long, widely spreading; on 
 very short stipes ; seeds oblong, emarginate. Canon City, Brandegee. 
 Webster Canon, Eedfield. 
 
 CAMELINA SATIVA, Crantz. Greene. On the road from Denver to 
 Idaho Springs, Porter. Introduced. 
 
 LEPIDIUM INTERMEDIUM, Gr. Porter. Weston's Pass, July 18, 
 Coulter. Denver, Eedfield. This species shows considerable variation. 
 Apetalous states are not uncommon; one form from the neighborhood of 
 Denver has such slender, delicate racemes and small pods, that if the 
 pods were oval and not orbicular, it could be safely referred to L. rude- 
 rale, L. Denver, Dr Smith. Canon City, Brandegee. 
 
 LEPIDIUM ALYSSOIDES, Gr. PL Fendl., p. 10. Annual, glabrous, 6' to 
 12' high; stems diffuse, corymbose-racemose; branches minutely puber- 
 ulent; leaves narrowly linear, mucronulate, attenuate at base, very eu- 
 tire, lJ 7 -2 7 [long, l"-2" wide, lowest often piimately 3-5 lobed ; ra- 
 cemes dense, corymbose; petals round-spatulate, thrice longer than 
 the calyx; stamens 6; silicles ovate, wingless, scarcely emargiuate, 
 glabrous; style very short, but thrice the length of the minute emar- 
 gination. South Park, July, Porter. Near Pueblo, Greene; Eedfield. 
 
 LEPIDIUM MONTANUM, Nutt. Nearly glabrous, decumbent ; branches 
 many from a long, somewhat woody root, 8' to 12', spreading in a cir- 
 cular manner; radical leaves usually more or less bi-pinnatitid, seg- 
 ments short, acute, upper leaves trifid or entire ; flowers rather con- 
 spicuous, sepals oval-oblong ; petals nearly twice as long as the sepals; 
 style conspicuous; silicles 2" long, indistinctly reticulated, elliptical, 
 slightly emarginate, wingless; pedicels 3" -4" long; cotyledons incum- 
 bent. South Park, Canby ; Porter. 
 
 LEPIDIUM SATIVUM, L. Near Denver, Dr. Smith. Introduced. Dis- 
 tinguished by its larger, ovate, winged pods, slightly notched at the top. 
 
 THLASPI ALPESTRE, L. (?) Perennial, glabrous; stems ascending, 3'- 
 12' high, simple ; radical leaves petioled, ovate or obovate, entire or 
 denticulate, cauline ovate-oblong, cordate, clasping ; racemes crowded, 
 or usually elongated and loose, %'-& long; flowers rather large, petals 
 l/'-S" long; pods 2 /A -4" long, acutely margined but not winged, short- 
 oblong, cuueate at base, emarginate, truncate or rounded at the apex, 
 4-8 seeded; style J"-!" long. We have followed Watson (in King's 
 Rep., vol. 5, p. 31) in naming this plant, which is usually referred to 
 T. cochleariforme, DC. Alpine and subalpine ; frequent. Hall & Har- 
 bour, 46; Meelian ; Brandegee; Coulter. Gray's Peak at 11,500 feet, 
 Eedfield. 
 
 CAPP ARID ACE 2E. 
 
 CLEOME 1 INTEGRIFOLIA, T. & G. Annual, somewhat glaucous, 2-3 
 high, widely branching; leaves 3-foliolate ; leaflets lanceolate (the lower- 
 most oblong) entire, submucrouate ; racemes sometimes nearly 1 long ; 
 flowers large, showy, reddish purple, rarely white ; sepals united to 
 the middle, persistent ; segments triangular-acuminate; petals with 
 very short claws; stamens equal; pods oblong-linear, compressed, 
 much longer than the stipe. Ou water-courses along the foot-hills -and 
 
 1 CLEOME, L. Sepals distinct or somewhat united. Stamens 6 or rarely 4. Torus 
 minute. Pod linear or oblong, subsessile or stipilate. Annual herbs or shrubs, with 
 digitate or simple leaves 'and racemed or solitary flowers. Bcntli. $ Hook. 
 
SYNOPSIS OF THE FLOEA OF COLORADO. 11 
 
 on the plains. Dr. Smith; J>. H. Smith ; Porter; Coulter; Hall & 
 Harbour, 52. 
 
 CLEOMELLA ^NGTJSTIFOLIA, Torr. Glabrous, 1 or more high, branch- 
 ing above ; leaflets oblong-linear, acutish, very entire ; upper bracts 
 simple; ovary many times surpassing the style, shorter than the stipe; 
 capsule dilated-rhomboid, acute; seeds transversely rugulose. Hall & 
 Harbour, 53 ; Parry. This is C. tenuifolia^ Torr., 104 of Parry's Rocky 
 Mountain Plants, Gray's Enumeration, Sill. Jour., vol. 33, p. 404. 
 
 POLAXISIA TjrxiGLANDULOSA, DC. (P. trachysperma, T. & G. Fl. N. 
 Am. 1, p. 669.) Yiscidly pubescent, branching ; leaves 3-foliolate ; leaflets 
 and bracts oblong-lanceolate ; stamens 8-16 ; filaments deep purple, 
 twice or thrice the length of the petals ; style about the length of the 
 ovary ; pods linear-oblong, attenuate at base ; seeds turgid, rough and 
 warty; capsule short-stipitate. On the Platte, near Denver, Dr Smith; 
 Redfield. 
 
 VIOtACEJE. 
 
 VIOLA PALTJSTEIS, L. Parry, 110. 
 
 VIOLA CUCULLATA, Ait. Bear Creek Canon, Coulter. 
 
 VIOLA DELPHINIFOLIA, Kutt. Plains near Denver and on the Saint 
 Vrain Elver, Coulter. Golden City, Greene. 
 
 VIOLA BIFLORA, L. Stem weak, about 2-leaved, 2-flowered ; leaves 
 reuiform, very obtuse, crenate; stipules ovate, very entire; flowers very 
 small, yellow, petals marked with brown stride ; sepals acute or acutish ; 
 spurs short. Hall & Harbour. 54. 
 
 VIOLA CANIXA, L. Near Mount Lincoln, July, Coulter. 
 
 VIOLA CANADE^SSIS, L. Caiion City, Erandagee. Near Long's Peak, 
 May, Coulter. 
 
 VIOLA XrTTALLii, Pursh. Stems numerous, short, erect; leaves 
 ovate-lanceolate, somewhat pubescent or nearly glabrous, undivided but 
 sometimes obscurely sinuate-toothed, attenuated into a long petiole; 
 stipules lanceolate, entire, or obscurely ciliate-toothed ; flowers small, 
 pale yellow ; spur very short ; peduncle shorter than the leaves. Hall & 
 Harbour, 55. Near Denver, May, Coulter. 
 
 IONIDIU3I 2 LINEARE, Torr. Am. N. Y. Lye. 2, p. 168. Somewhat pu- 
 bescent, stern branched ; leaves opposite, occasionally alternate, entire 
 or remotely serrulate, the lower varying from lanceolate to oblong or 
 obovate, the upper linear, obtuse or acute, usually 3-4 times the length 
 of the stipules; stipules linear, one-third the length of the leaves; pe- 
 duncles slender, 2 // -6 // long, articulated, bibracteolate ; flowers small; 
 capsules glabrous; seeds turning black. Hall d; Harbour, 57. Canon 
 City, Brandegee. 
 
 1 CLEOMELLA, DC. Sepals distinct, short aud spreading. Torus short, oblong' 
 Stamens 6, incurved in ;estivatiou. Pod short, obovate-rhomboidal, 4-8 seeded, with 
 reticulate, deltoid, or boat-shaped saccate valves, and upon a filiform stipe. Seeds 
 smooth, pitted, or variously reticulated: embryo conduplicate ; radicle elongated. 
 Annual glabrous herbs with stipulate 3-foliolate leaves, entire leaflets and racerned, 
 leafy-bracted yellow flowers. Benth.* Hook. 
 
 2 IONIDIOI, Vent. Sepals more or less unequal, not auricled ; petals very unequal, 
 the two upper shorter, the lower one very large, imguiculate : the claw dilated, shortly 
 gibbous or concave ; stamens approximate, the anterior ones each furnished with a 
 nectariferous gland at the base. Low herbs or suftruticose plants, leaves alternate or 
 opposite : peduncles axillary, solitary. Gr. Gen. Ill, 1, p. 189 ? t. 82. 
 
12 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 FRANKENIA JAMESU, Torr. Gr. in Proc. Am. Acad. v. 8, p. 622. Much 
 branched from a woody base, 6'-10'; branchlets minutely pubescent; 
 leaves opposite, linear, strongly revolute on the margins, somewhat 
 mucrouate, &'-&" long, -with fascicles of shorter ones in their axils ; 
 flowers terminal, sessile ; petals long-clawed, white, limb oblong-cuneate, 
 erose-denticulate at the tip, 2"-3" long, nearly twice the length of 
 the calyx-tube; stamens 6, exserted; stigmas terminal; ovules 3, 
 oblong-linear, pendulous from the apex of a very long subbasilar funicu- 
 lus. Canon City, Brandegee. Near Pueblo, Redfield. 
 
 CARYOPHYI^LACE^E. 
 
 SAPONARIA VACCARIA, L. ( Vaccaria vulgaris, Host.) Hoopes; Greene. 
 Introduced. 
 
 SILENE ACAULIS, L. Gray's Manual, p. 90. High alpine, growing in 
 dense mats near the snow-line, at 10,000 to 14,000 feet altitude. July, 
 August. Hall & Harbour, 65. Gray's Peak, Dr. Smith ; B. H. Smith. 
 Pike's Peak, Porter. Mount Lincoln, at 14,000 feet altitude, Coulter. 
 Gray's Peak, 12,000 to 13,000 feet, Redfield. 
 
 SILENE SCOULERI, Hook. Stem erect; racemes sub-compound, nar- 
 row, few-flowered ; flowers erect or nodding, longer or shorter than the 
 pedicels; calyx oblong, clavate, somewhat dilating, teeth broad-lance- 
 olate, acutisli, slightly ciliate ; petals white or pinkish, bifid, the lobes 
 oblong, emargiuate, the appendages obtuse ; claws with acute auricles, 
 woolly-ciliate as well as the filaments; capsule obovate-oblong, three to 
 four times longer than the stipe. Hall & Harbour, 61 ; Hoopes. In the 
 mountains. 
 
 SILENE MENZIESII, Hook. Minutely glandular-pubescent; stems 
 numerous, dichotomously branched, 6'-12' high, weak, ascending, leafy 
 to the summit; leaves crowded, ovate-lanceolate or oblong-ovate, 
 acuminate at both ends ; peduncles axillary and terminal, 1-flowered ; 
 petals white, bifid, 3" long, exceeding the obovate, deeply 5-toothed 
 calyx; styles thickened above, conspicuously bearded within. Hall & 
 Harbour, 64. 
 
 LYCHNIS APETALA, L. Pubescent; stems simple, 3 / -4 / high, 
 1-flowered; calyx ovoid, 10-striate, including the petals; filaments and 
 claws of the petals naked ; seeds large and margined. Hall & Harbour, 
 63. Mount Lincoln at 13,000 feet altitude, July, Coulter. 
 
 LYCHNIS DRUMMONDII, Watson. (Silene Drummondli, Hook. ?) 
 King's Rep., vol. 5, p. 37. Glandular-pubescent and viscid ; stems 
 several, l-3 high, erect, simple ; leaves remote, linear-lanceolate ; 
 raceme loose, few-flowered, with elongated pedicels, alternate or oppo- 
 
 l . FRANKENIACE^E. A. St. Hil. Sepals 5, united in a furrowed tube, persistent, 
 equal; petals alternate with the sepals; stamens hypogynous, either equal in number 
 to the petals and alternate -with them, or having a tendency to double the number ; 
 anthers roundish, versatile ; ovary 1-celled, with 2-3 parietal placentae : stylos 2-3, 
 filiform, united for a considerable part of their length ; capsule 1-celled, inclosed in 
 the calyx, 2-3, or 4-valved, many seeded ; seeds attached to the margins of the valves, 
 very minute, anatropous ; embryo straight; erect in the midst of albumen. Herba- 
 ceous,plants or undershrubs. Stems very much branched. Leaves opposite, exstipu- 
 late, with a membrauaceous sheathing base, often revolute at the edges. Flowers 
 sessile in the divisions of the branches, and terminal, embosomed in leaves, usually 
 pink. Lindl. 
 
 FRANKEXIA, L. Styles 3, united below, stigmatic along the inner surf ace ; capsule 
 loculicidal; many-seeded. Torr. $ Gray. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 13 
 
 site; flowers 3-5; calyx oblong, cylindrical, erect; petals white or 
 purplish, the limb 2-lobed or emargiiiate, scarcely exceeding the calyx, 
 minutely crowned and narrower than the obtusely, strongly auricled 
 claw ; seeds reniforai, uniformly tuberculated under the microscope, 
 emargiuate. In the mountains at middle elevations. Sail & Harbour, 
 62 ; Dr. Smith ; Canty ; Brandegee. South Park, Coulter. 
 
 CERASTIUM VULGATUM, L., var. BEHRINGIANUM, Gr. Flowers large, 
 petals and capsules half longer than the calyx, shorter than the pedicels ; 
 stems few, 2-4 flowered. Hall & Harbour ; Brandegee. Mount Lincoln, 
 Coulter. 
 
 CERASTIUM ARVEXSE, L. In the mountains, at all elevations. Hall & 
 Harbour, 75; Dr. Smith ; B. H. Smith ; Meehan ; Porter ; Coulter. 
 
 STELLARIA JAIVIESIANA, Torr. Ann. X. Y. Lye.* v. 2, p. 169. Yiscidly 
 pubescent; leaves linear-lanceolate, 4' long, acute; stems weak, l-2 
 high; leaves slightly falcate, closely sessile; cyme divaricate; few- 
 liowered; petals two lobed, twice longer than the oblong, acute sepals ; 
 capsule as long as the calyx, deeply valved; seeds few, rugose. Hall 
 & Harbour, 78. 
 
 STELLARIA LONGIPES, Goldie. At all elevations. Hall & Harbour, 
 71 and 76 ; Canby ; Brandegee ; Coulter. 
 
 STELLARIA CRASSIPOLIA, Ehrh. Hall & Harbour. 
 
 STELLARIA BOREALIS, Big. Alpine and subalpine. Hall & Harbour* 
 72; Dr. Smith. Mount of the Holy Cross, at 13,000 feet altitude, 
 August, Coulter. 
 
 STELLARIA UMBELLATA, Turcz. Glabrous, stem 6'-l c high, weak ; 
 leaves ovate to oblong-lanceolate; peduncles axillary and terminal, 
 divaricate, filiform and elongated, with scarious bracts ; petals wanting ; 
 sepals short, I" long, ovate, acute, nerveless or 1-nerved, (rarely 3- 
 nerved;) capsule deeply valved, twice longer than the calyx; seeds 
 smooth. Hall d- Harbour, 70. Twin Lakes, Coulter. 
 
 ARENARIA CONGESTA, Nutt. Crespitose, glabrous ; stem simple, 
 6'-! high ; leaves long; linear-subulate, pungent, over 2' long; flowers 
 in roundish, compact heads or fascicles, with crowded membranaceous 
 bracts; sepals ovate, membranous, obscurely 3-nerved, about half the 
 length of the oblong petals; capsule coriaceous, equaling the calyx; 
 seeds very small, angular, smooth. White House Mountain, at 13,000 
 feet altitude, Coulter. North Park, Hay den. 
 
 ARENARIA FENDLERI, Gr. Stems numerous, from a perennial cau- 
 dex, 6 / -15 / high, glabrous below, more or less glandular, pubescent 
 above, inibricately many-leaved at base ; leaves long, 3'-5', erect, seta- 
 ceous, somewhat flattened; serrulate-scabrous, smooth except on the 
 margins, those of the stem successively shorter; cymes strict and few- 
 flowered; pedicels slender; sepals ovate-lanceolate, cuspidate, acumi- 
 nate, green, with a broad, scarious margin, 5-nerved, nearly equaling 
 the obovate petals, which are white and 4" long; styles exserted; cap- 
 sule about equaling the calyx, 6- valved; seeds papillose-scabrous. Hall 
 tO Harbour, 79; Parry; Canby; Dr. Smith; B. H. Smith; Meehan; 
 Brandegee ; Porter ; Coulter. 
 
 Var. SUBCONGESTA, Watson. Low, 3'-6' high, smooth except the 
 minutely puberuleut short pedicels, few-flowered ; petals but little ex- 
 ceeding the ovate, acuminate, scarious sepals; leaves short. Hills 
 around Canon City, Brandegee. 
 
 Var. DIPFUSA. Branches of the cyme elongated, lax and widely 
 spreading; flowers numerous. Ute Pass, Porter. 
 
14 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ARENARIA VERNA, L., var. HIRTA, Fenzl. Csespitose, 2 / -3 / high, 
 minutely hirsute; leaves subulate, 3-nerved, erect, obtuse or acutish; 
 cyme erect, few or many flowered; sepals ovate, acute, strongly 3- 
 nerved, mostly exceeding the petals. Summit of Pike's Peak, Canby. 
 Clear Creek Canon, Coulter. James's Peak, Greene. 
 
 ARENARIA ARCTICA, Stev., var. OBTUSA. T. & G. Csespitose, stems 
 l'-3' high ; leaves linear-subulate, obtuse, carinate, thickish, serrulate- 
 ciliate, obscurely 3-nerved; peduncles glandular-pubescent, 1 (rarely 
 2-3) flowered; petals about half longer than the oblong sepals. Hall & 
 Harbour, 77; Dr. Smith; B. H. Smith; Meehan ; Brandegee. Mount 
 Lincoln at 13,000 feet altitude, Coulter. Gray's Peak, Red-field. 
 
 ARENARIA ALPINA, L. (Alsine bifiora, Wahl.) Ca3spitose, stems 
 creeping, branches erect, 2'-3' high, mostly 1-flowered, minutely pubes- 
 cent; leaves narrowly linear, 3 7/ -3J 7/ long, nerveless, subconvex beneath; 
 sepals linear, very obtuse, cucullate at the summit, 3-uerved; petals 
 oblong, cuneate, much longer than the capsule and calyx. Hall & Har- 
 bour ', 77 ; Canby. 
 
 ARENARIA (ALSINE) Eossn, E. Br. Csespitose; leaves subulate- 
 triquetrous, rather obtuse, nerveless, scarcely equaling the flower or ex- 
 ceeding the calyx, mostly shorter than the internodes, with manifest 
 lateral nerves ; peduncles 1-flowered ; petals oblong, as long as or a little 
 exceeding the obscurely 3-nerved sepals. Flowers sometimes apetalous. 
 Hall & Harbour ', 69. Clear Creek Canon, Coulter. 
 
 ARENARIA LATERIFLORA, L. Hall & Harbour, 74. 
 
 SAGINA LINN^I, Presl. (S. decumbens, T. & G.) Mostly glabrous ; 
 stems decumbent, branched, ascending, I'-S' long; leaves linear-subu- 
 late, very acute; peduncles much longer than the leaves ; petals and 
 sepals 5, equal, obtuse ; capsule a littte longer than the calyx. Almost 
 wholly apetalous, glabrous, with narrowly linear leaves, which are mostly 
 rnucronate; sepals oblong or ovate. Hall & Harbour, 68. Twin Lake 
 Creek, Coulter. 
 
 PORTUJLACACE^:. 
 
 PORTULACA OLERACEA, L. (P. retusa, Eng.) Denver, July 31, Dr. 
 Smith; Greene. Introduced. 
 
 TALINUM TERETIFOLIUM, Pursh. Found in the mountains with flow- 
 ers fully as large as in eastern specimens, Hall & Harbour, 81. Mee- 
 han ; Porter ; Brandegee. Colorado Springs and Chiaim Canon. 
 
 CALANDRINIA 1 PYGM^EA, Gr. ( Talinum pygmceum, Gr.) Proc. Am. 
 Acad., v. 8, p. 623. Acaulesceiit, glabrous ; root thick, fusiform ; the linear 
 leaves and 1-3 flowered scapes (l'-2') crowded; sepals orbicular, 
 glandular-dentate or entire; petals rose color, 6-8, unequal ; stamens, 
 4-7; stigmas 3-5;' style short, or almost none; ovules, 16-20. 
 Parry, 143. Mount Lincoln at 13,500 feet altitude, Coulter. Gray's 
 Peak, Redfield. Alpine. 
 
 CLAYTONIA CAROLINIANA, MX., var. LANCEOLATA, Watson, (C. 
 lanceolata, Pursh.) Cauline leaves ovate, lanceolate or linear, sessile or 
 short-petioled ; petals more or less emargiuate or entire, rose-color or 
 white. Mount Lincoln at 14,000 feet altitude, July, Coulter. 
 
 1 CALANDRINIA, H. and B. Calyx 2-parted, persistent. Petals 3-5, distinct or 
 somewhat connate at base. Stamens 4 to 15. Style very short, 3-cleft at the apex, 
 lobes clavate. Capsule oblong-elliptic, 3-valved. Seeds estrophiolate. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 15 
 
 CLAYTONIA ARCTICA, Adams., var. MEGARHIZA, Gr. Sill. Jour. 
 (y. 8.} 33, p. 406. Boot fusiform, very large ; leaves T-6' long, 2 // -12 // wide, 
 fleshy ; radical ones petioled, cauline ones lanceolate or linear-lanceo- 
 late, opposite, sessile, racemes secuud, subsessile; flowers large ; petals 
 obovate, subeinarginate, 2 // -6 // long. Flowers from June to August. 
 High alpine, growing in crevices of the rock, its large, purple tap-root 
 penetrating to a great depth. Flowers profuse, white, with pinkish veins. 
 Hall & Harbour, 83 ; Parry, 142. Gray's Peak at 14.000 feet altitude, 
 Coulter ; Redfield. 
 
 CLAYTONIA CHAMISSONIS, Esch. & Ledeb. (C. aquatica, Xutt.) Stems 
 erect or decumbent, stoloniferous and rooting at the joints, becoming 
 1 in length ; roots bulbiferous ; leaves opposite, spatulate, or oblong- 
 obovate, attenuate below, rather obtuse, V-l' long; racemes appar- 
 ently axillary, peduncled, simple, few-flowered ; flowers white, rather 
 large ; petals obovate, entire, twice longer than the calyx. Hall & 
 Harbour, 84; Parry ; Canby ; Meehan ; Brandegee; Coulter. Sangrede 
 Cristo Range, Bedjield. 
 
 EL.ATIIVACE./E. 
 
 ELATIXE AMERICANA, Arn. On the Platte Eiver, Hall & Harbour, 
 59. 
 
 HY'PERICACE^E. 
 
 HYPERICUM SCOULERI, Hook. Perennial, herbaceous ; stems terete 
 below, 6' 2 high ; leaves oblong-obovate, closely sessile or clasping, 
 very obtuse, f long, not dotted, under-surface with numerous prominent 
 veins ; cyme compound ; sepals broadly ovate, rather obtuse. the length 
 of the petals; sepals, petals, and anthers dotted with black; stamens 
 numerous; styles 3, distinct, erect; capsules tricarpellary ; placentae 
 united to the middle. Common. Hall & Harbour, 5S-, Meehan; Canby; 
 Brandegee; Coulter. 
 
 CALLIRRHOE INVOLTJCRATA, Gr. Hirsute ; stem branching, procum- 
 bent, leaves deeply 3-5-parted, covered with stellate hairs, segments 
 linear-lanceolate, laciniately 3-5 toothed; peduncles erect, 1-flow- 
 ered, longer than the leaves; flowers few in a loose panicle, about 1^'in 
 diameter, axillary, scarlet; bracteoles 3, linear-lanceolate, f the length 
 of the deeply-parted calyx; carpels numerous, hairy, not wrinkled. 
 
 Purgatory Eiver, Dr. Bell. Parry, 148. 
 
 SiDALCEA 1 MALVJEFLORA, Gr. Glabrous or hispid, l-3 high, simple ; 
 lower leaves roundish, more or less deeply 7-9 lobed, cauline more nar- 
 rowly and deeply 5-7 lobed, segments linear, somewhat toothed; raceme 
 terminal ; pedicels at first shorter, at length longer than the subulate 
 bracts; calyx hispid or tomentose, the lobes ovate, acute or acuminate; 
 flowers variable in size, l'-2' in diameter, purple, occasionally white; 
 styles 7-8, free at the summit; stigma simple; carpels 7, pointless. 
 
 Middle elevation sin the mountains. Xorth Park, Hay den. South Park, 
 Porter ; Canby; Brandegee. 
 
 1 SIDALCEA, Gray. Bractlets none. Calyx 5, cleft. Stamineal tube double; the outer 
 of 5, the inner of 10 narrower phalanges of stamens. Styles united below, filiform, 
 stigmatose the whole length of the inner face. Ovaries 5-9, united in a circle around 
 a central receptacle. Carpels membranous, beakless. reniform. 1-seeded. indehiscent, 
 separating from the short axis. Seed reniform. ascending. Perennial herbs, with pur- 
 ple, rose-colored or Avhite flowers in paniculate racemes. Gr., Gen. III., 2, p. 57. 
 
16 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 SIDALCEA CANDIDA, Gr. PI. Fendl., p. 24. Stems simple, 2-3 high, 
 from a perennial, creeping rhizoma, leafy, glabrous above, sparsely hairy 
 below; lower leaves orbicular, 2 / -8 / in diameter, 7-lobed, smooth, ciliate, 
 segments coarsely 3-5 toothed, or incised, rounded ; upper leaves 7-lobed 
 or parted, the floral ones 3-5, segments lanceolate, entire; stipules oval, 
 ciliate; raceme usually short, compact, glandular, tomeutose; pedicels 
 shorter than the bracts; lobes of the tomentose calyx ovate; corolla 
 white or cream-color; petals 8"-12" long ; anthers blue; carpels 9-10, 
 smooth, cochleate-reiiiform ; minutely apiculate at the inner angle, 
 mucronate. On water- courses. Bare. Hall & Harbour, 85; Parry, 
 429; Meehan; Brandegee. Eagle River, Coulter. 
 
 MALVASTRUM COCCINEUM, Gr. Common at low elevations, in dry soil. 
 Hall & Harbour, 86 ; Dr. Smith; B. H. Smith; Canby ; Porter ; Coulter. 
 Abundant along the Platte. Colorado Springs, Redjield. 
 
 SpHvERALCEA 1 ANGUSTiFOLiA, Spach. (8. stellata, T. & G. Ft. N. Am. 
 1, p. 228.) Densely clothed with a grayish, stellate pubescence; stem 
 l-3 high, branched; leaves oblong-lanceolate, acute, petioled, 2 / -3 / 
 long, 4 // -9 // wide, erosely- serrulate, rugose; petioles 4 // -12 // in length; 
 peduncles axillary, shorter than the petioles, 2-mauy-flowered ; flowers 
 more or less aggregated; corolla purple; carpels 12-14, with two short, 
 slightly recurved points; 2, rarely 3-seeded; seeds reniform, glabrous; 
 stipules setaceous. Canon. City, Brandegee. Common about Pueblo, 
 Greene. 
 
 ABUTILON 2 PARVULUM, Gr. PI. Wright, 1, p. 21. Cinereous-tomeir 
 tose with a lax minute pubescence; stems slender, spreading, from a 
 perennial woody root, paniculate above; branchlets pilose with spreading 
 hairs; leaves small, 6"-12" broad, cordate, dentate, sometimes 3-lobed, 
 usually obtuse, canescent, tomentose beneath; peduncles axillary, 
 1-flowered, longer than the leaf; flowers small, yellow; capsule ovoid, 
 somewhat tomeutose, 5-lobed at the apex, much longer than the short 
 calyx; carpels erect, 5, rather obtuse, awnless, 2-3-seeded. Ledges of 
 rock near Canon City, Greene. 
 
 JLINACE^E. 
 
 LINUM PERENNE, L. Perennial, glabrous ; stems l-3 high, branch- 
 ing above; branches virgate; leaves alternate, scattered, linear, acute; 
 flowers terminal and nearly opposite the leaves, large; peduncles becom- 
 ing elongated and nodding in fruit; sepals oval, with membranous mar- 
 gins, a little shorter than the globose capsule; petals free, retuse, blue, 
 3-4 times the length of the calyx; styles 5, capsule 5-celled, with bearded 
 dissepiments. Not rare in the mountains, but more common at higher 
 elevations. Hall & Harbour, 87; Dr. Smith. North Park, Hay den ; 
 Coulter. 
 
 LINUM RIGIDUM, Pursh. Stems 5'-15' high, angled, much-branched; 
 branches strict, ascending; leaves alternate; linear, pungently- acute, 
 rigid, with scabrous margins; flowers panicled or corymbose; pedicels 
 
 1 SPH^ERALCEA, St. Hil. Involucel 2-3 leaved, setaceous, often deciduous. Stigmas 
 capitate. Ovaries many, 15-20. Carpels 1-celled, 2-ovuled, the lower ovule ascend- 
 ing, the other pendulous, compressed, often truncate and pointed above, membra na- 
 ceous or coriaceous, 2-valved above, hardly separating from each other and from the 
 axis Radicle inferior, or in the upper seed centripetal-superior. Gr., Gen. ///., 2, p. 69. 
 
 2 ABUTiLOisr, Tourn., Gaertu. Involucel none. Stigmas capitate. Ovules 3 in each 
 carpel, rarely 4-9, all or the lower spreading or resupinate-pendulous. Fruit of 5-mnny 
 carpels. Carpels, 1-celled, about 2-valved, scarcely separating from the axis. Radicle 
 ascending or centripetal. Leaves cordate. Gray, Gen. Ill, 2, p. 65. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 17 
 
 thickened at the end, and forming an exterior cup-shaped calcyculus ; 
 sepals ovate-lanceolate, cuspidate, strongly 3-nerved, glandular spinu- 
 lose-scabrous on the margins, longer than the globose capsule ; petals 
 sulphur-yellow. Canon City, Brandegee; Greene. 
 
 GERANIUM BICHARDSONH, F. and M. (G. albiflorum, Hook.) Stem 
 erect, l-3 high, dichotomously branching, glabrous below, branches 
 slender] leaves deeply 5-parted, lobes sharply incised, sparsely pube- 
 scent; petioles smooth; radical ones on long petioles, uppermost opposite, 
 on short petioles, rather acuminate; pedicels and sepals glandular-pilose; 
 petals entire, white or pale rose-color, liirsute at base; filaments pilose 
 at base, equaling the pilose styles, which are connate one-third their 
 length; capsule glandular-pilose. Growing in damp, shaded spots along 
 water-courses in the mountains, frequent. Taller but less robust in all 
 its parts and less hairy than the following, from which in some forms it 
 can scarcely be distinguished. Hall & Harbour, 88; Porter; Brande- 
 gee; Coulter. 
 
 GERANIUM FREMONTH, Torr. Plant. Fendl, p. 26. Perennial, stems 
 numerous, diffusely branching. 6'-! in height, more or less pubescent 
 throughout, with a short, close, glandular pubescence sparsely intermixed 
 with longer, pilose hairs; upper leaves deeply 3-5-cleft, truncate at base, 
 or the lowest cordate with a broad sinus, radical ones 7-cleft, segments 
 3-lobed or incised, mucrouate-acute ; peduncles l'-3' long, bearing two 
 flowers on pedicels 1' 2' long; sepals short-awned; fruiting pedicels 
 more or less divaricate and declined; petals obovate, emargiuate, light 
 or deep purple, villose at the base, sparingly villose-bearded on the veins; 
 filaments pilose-ciliate, equaling the naked styles which are connate be- 
 low; seeds delicately reticulated; stems numerous and spreading, divari- 
 cately branched above, growing in dense tufts, with large purple flow- 
 ers 1' in diameter. Very common on dry, open hill-sides, on the plains 
 and in the mountains. Dr. Smith; B. H. Smith; Porter; Coulter. The 
 degree of pubescence is variable, some forms being nearly smooth. 
 
 OXALIS VIOLACEA, L. Glen Eyrie. Porter. 
 
 OXALIS STRICTA, L. In the lower foot-hills. Dr. Smith; Brandeyee ; 
 Coulter. 
 
 ZYGOPHYLI.ACE^E. 1 
 
 KALLSTRCEMIA MAXIMA, T. & G. (Tribulus mcucimus, L.) Stems 
 diffusely procumbent, 1-_J long leaves opposite, abruptly pinnate; 
 leaflets in three, or, rarely, four pairs, oblong or oval; mucrouate, slightly 
 falcate, pubescent beneath, terminal ones largest; peduncles 1' long, 
 solitary, axillary, 1-flowered ; flowers yellow ; petals marcescent ; cocci 
 gibbous below, tuberculate. Fremont County, Brandegee. 
 
 R. Br. Flowers perfect, regular, sepals 4-6. JEstivatiou 
 usually convolute. Petals 4-6, alternate with the sepals, clawed; at lirst short and 
 scale-like; at length equal to the sepals. Stamens twice as many, hypogonous. Fila- 
 ments distinct, dilated at base, sometimes placed on the hack of a small scale. Anthers 
 fixed near the middle, introrse. Ovary" of 4-5 united carpels, opposite the petals, 
 with five scales or glands at base, or surrounded by a sinuate disk. Ovules two or 
 more, attached to the inner angle of the carpel, pendulous or rarely erect. Styles and 
 stigmas united. Fruit capsular, carpels 4-5, which sometimes iu fruit split into ten 
 1 -seeded cocci without transverse partitions. Herbs, shrubs, or trees. Leaves opposite, 
 stipulate, not dotted, rarely simple. 
 
 KALLSTRCEMIA, Scop. Sepals 5-6, persistent, lanceolate or subulate. Petals 5, 
 obovate. Filaments 10-1:>, naked. Ovaries H'i-12-celled, cells 1-ovuled. Berries 
 separating from the persistent styliferous axis, 1-seeded. indehiscent. Style conical, 
 10-furrowed. Stigma capitate, 10-ribbed. 
 
 2 F C 
 
18 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 RUTACEJE. 
 
 PTELEA ANGUSTIFOLIA, Benth. Distinguished from P. trifoliata, L., 
 (Gray's Manual, p. 110,) by its much smaller and more emarginate 
 fruit, and its oblong or lanceolate leaves, pubescent or villous, becomr 
 ing smooth and shining with age. Fifteen miles west of Canon City, 
 Porter; Eedfield. 
 
 VITACE^E. 
 
 VITIS RIP ARIA, MX. ( V. cordifolia, MX., var. riparia., Gr.) Canon City. 
 Brandegee. 
 AMPELOPSIS QTJINQUEFOLIA, MX. Median. 
 
 PACHYSTIMA 1 MYRSINITES, Eaf. (OreopUla myrtifolla, Nutt.) Stems 
 10-2 high, densely branched, very leafy; leaves roundish-oval, or 
 oblong, J"-9" long; flowers somewhat fascicled on short peduncles, 
 small, green or brownish, apparently always perfect (monoecious, Nut- 
 tall.) In dense clumps on wooded slopes. Hall & Harbour, 92; Parry. 
 At middle elevations, rare. 
 
 RHAMNACEJE. 
 
 CEANOTHUS VELUTINUS, Dougl., var. LJEVIGATUS, T. & G. A dense- 
 ly-branched shrub, usually 2-4 high ; leaves round or ovate-elliptical, 
 2' 3' long, rather obtuse, sub-cordate, glandularly crenate-serrate, 
 coriaceous, glabrous and shining above, smooth or very slightly pubes- 
 cent and strongly 3-ribbed beneath; petioles J' in length; panicles 
 axillary, compound, on rather long peduncles; flowers white. Parry. 
 Mountains west of Denver, Greene. 
 
 CEANOTHUS FENDLERI, Gr. Shrub, 1 J high, widely and intricately 
 branched; branches and branchlets terete, slender, often spinescent, 
 whitish, puberulent, at length glabrous, smooth; leaves small, J'-J' 
 long, oval or elliptic, obtuse, very entire, not glandular, 3-nerved, silky- 
 canesceiit beneath, smoothish and green above; flowers in clusters, 
 dense, sessile, glabrous, white. Hall & Harbour, 90. Wet Mount- 
 ain Valley, Brandegee. In the mountains, on the road from Denver to 
 Idaho Springs, Porter. Sangre de Cristo Kauge, Redfield. 
 
 CEANOTHUS OVALIS, Big. Foot-hills along the Platte, June, Coulter. 
 
 CEANOTHUS OVATUS, Desf., DC. Prod., 2, p. 31. (C. Americanus, L., 
 var. herbaceus, T. & G. Fl. N. Am. 1, p. 264.) Leaves ovate or oval, ser- 
 rate, 3-nerved, glabrous; thyrsus shortened; fruit sub-globose, 6-ribbed. 
 Hall & Harbour, 91. This plant we have not seen. 
 
 SAPINDACE.E. 
 
 ACER GLABRUM, Torr. (A. tripartitum, Kutt.) Shrub, G-10 high; 
 leaves sub-reuiform, orbicular in outline, 3-lobed or more iisusally 3- 
 parted; segments short and broad, acutely incised and toothed, some- 
 what 3-lobed, middle one cuneate ; corymb nnibeled, pedunculate, few- 
 
 1 PACHYSTIMA, Raf . Petals and stamens 4, inserted on or below the margin of the 
 broad, flat, quadrangular disk that covers the small pyramidal ovary, and adheres to 
 the throat of the short, obcoiiic, 4-lobed calyx. Style very short ; stigma obsoletely 
 2-lobed. Capsule coriaceous, oblong, acute, 2-celled, loculi'cidally 2-valved; cells 1-2 
 seeded. Seeds inclosed in a white, membranous, dissected axil. A low, branched, 
 leafy, glabrous shrub, with opposite, short-petioled, mostly serrate, evergreen leaves 
 and axillary flowers. Bentli. $ Hook. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 19 
 
 flowered ; sepals about 8, linear-oblong ; petals wanting ; fruit glabrous, 
 wings broad, diverging. Along water-courses among the mountains. 
 Dr. Smith; Coulter. 
 
 XEGUNDO ACEROIDES, Moench. Canon City, Brandegee. Along tlie 
 riatte, Coulter. 
 
 ANACARDIACE^E. 
 
 EHVS GLABRA, L. Golden City, Greene. 
 
 EHUS TOXICODENDRON, L. Grows on dry slopes. Poisonous. Turkey 
 Creek, Coulter. 
 
 RHUS AROMATICA, Ait., var. TRILOBATA, Gr. (R. trilobata 'Suit.) A 
 much-branched shrub, 3-6 high, smooth or with the leaves and young- 
 branches minutely pubescent; leaves trifoliate, paler beneath, lateral 
 leaflets obovate, obtuse, 3-lobed at the apex, or nearly entire ; terminal 
 leaflet larger, cuneiform, 3-lobed at the summit, I'-IJ' in length. Emit- 
 ting a heavy, disagreeable odor when bruised. Distinguished from the 
 eastern form by its greater size, smaller leaves, and smoother drupes. 
 Dr. Smith ; B. H. Smith. Common on the mesas near Colorado Springs, 
 Porter. Clear Creek Canon, Coulter. 
 
 POLYGALA VERTICILLATA, L. Dudley's Ranch, on Clear Creek, 
 
 Greene. 
 
 RHOMBIFOLIA, Kutt. Perennial; stems erect, 8 / -12 / 
 high, angular, nearly smooth; leaves petioled; leaflets obovate-cuiiei- 
 forin, silky-puberuleut, at length nearly glabrous ; stipules ovate or cor- 
 date, acute, as long as the petioles; flowers yellow, alternate or in 
 pairs, lance-oval, shorter than the pedicels ; calyx-short, teeth triangular, 
 acute, the upper lip 2-toothed ; legumes elongated, falcate, pendulous, 
 glabrous, about 3' long. Hall tt Harbour, 107 ; Canty. 
 
 THERMOPSIS FABACEA, DC., var. MONTANA, Gr. Somewhat pubescent ; 
 stems numerous, branched; leaflets l'-3' long, oblanceolate, obtuse; 
 stipules oblong-ovate, exceeding the petioles; legumes downy, 2 / -3 / 
 long, linear-oblong, erect, nearly straight, about 10-seeded. Middle ele- 
 vations in the mountains and on the plains. Canty. Four miles from 
 Denver on Clear Creek, Coulter. South Park, Porter. 
 
 LUPIXUS ORNATUS, Dougl. Watson's Revision, in Proc. Amer. Acad- 
 v. 8, p. 528. Stems decumbent or ascending ; pubescence usually short, more 
 or less silky, mostly appressed; stipules setaceous; leaflets 5-7, ob- 
 lanceolate or cuneate-oblong; J'-2' long, acute or acutish; raceme 
 3'-8' long, usually short-peduncled ; bracts short, subulate or ovate; 
 pedicels ^"-3" long; bractlets setaceous; calyx-lips nearly equal, the 
 upper rather shortly toothed or bifid, the lower subentire ; petals blue, 
 equal, 5 / -7 // long, the banner acutish sub-silky on the back, keel cili- 
 ate; ovules 5-8; pod 1J 7 long, 3"-." wide. 
 
 Var. GLABRATUS, Watson. Leaflets glabrous above, cuneate-oblong, 
 acutish or obtuse ; flowers nearly white, with a dark purple spot upon 
 the banner. "Common in the mountains of Colorado." Hall & Harbour, 
 
 1 THERMOPSIS, R. Br. Like Baptma (Gray's Manual, p. 142,) but with large, folia- 
 ceous stipules, and long, flat legumes. 
 
20 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 LUPINUS PARVIFLORUS, ]S"utt. Watson's Rev., 1. c., p. 531. Strict, erect r 
 slender, 2-3 high, at length branching; pubescence scanty, short,, 
 appressed, the calyx and pedicels silky ; stipules setaceous ; leaves rather 
 distant; leaflets 5-11, oblanceolate to obovate, ! 7 -2 7 long, acute or 
 obtuse and niucronulate, glabrous above, the lower leaves snorter than 
 the petioles ; raceme J-l long, slender, bracts linear-subtulate, equal- 
 ing the calyx ; flowers subverticillate or scattered, the slender pedicels 
 l"-*-2" long ; calyx-lips nearly equal, the upper 2- toothed; petals light- 
 blue, equal, 3"-4" long, keel ciliate or naked; pod J 7 long, 2-4-seeded r 
 pubescent. Very abundant near the Twin Lakes, Porter and Coulter. 
 
 LUPINUS ARGENTEUS, Pursli. Watson's Rev., 1. c., p. 532. Erect or 
 ascending, l-2 high, slender ; pubescence minute, silky, appressed ; 
 stipules small; leaflets 5-8, linear- lanceolate, f'-lj' long, acute, smooth 
 above or nearly so, about equaling the petioles; racemes 3 7 -6 7 long, 
 nearly sessile ; flowers subverticillate or scattered, pedicels #'-1" long; 
 calyx campanulate, gibbous but not spurred at base, minutely bracteo- 
 late, upper lip broad, 2-toothed, the lower subentire slightly longer ; 
 petals blue or cream-colored, equal, 3"-4" long, the banner very broad, 
 naked or subhairy, keel naked or subciliate; ovules 5-3; pod f 7 -!' long. 
 
 Yar. DECUMBENS, Watson. (L. decumbens, Torr.) Raceme dense and 
 many-flowered; stein usually stouter and more leafy. Dr. Smith ; Bran- 
 degee ; Canby; Coulter ; Porter. 
 
 Yar. ARGOPHYLLUS, Watson. With the habit of var. decumbens, but 
 more copiously silky-pubescent, the leaflets nearly or quite equally so 
 upon both sides, longer than the petioles ; flowers larger, 5 77 -G 7/ long, 
 blue or ochroleucous, the calyx decidedly spurred. Approaching nearly 
 to D. laxiflorm. Brandegee. 
 
 LUPINUS C^ESPITOSUS, iNutt Watson's Rev., 1. c., p. 533. Crespitose 
 dwarf, 2 7 -4 7 high, nearly stemless, silky-hirsute; leaflets 5-7, oblong- 
 lanceolate, attenuate at base, much shorter than the petiole; stipules 
 adiiate, subulate ; spikes sessile ; densely flowered, shorter than the 
 leaves ; bracts setaceous, deciduous ; calyx bracteolate, the upper lip 
 2-parted, lower obscurely 3-toothed ; petals pale-blue, equal, 3 /7 -4 77 long; 
 legume villous, 3-4-seeded. " West of the Snowy Range on Blue River.' 7 
 Hall & Harbour, 96. In the Sierra Madre Range, Coulter. 
 
 LUPINUS PUSILLUS, Pursh. Watson's Rev., I. c., p. 539. Annual, low, 
 very hirsute with long spreading hairs ; stems 3 / -10 7 high, branching 
 from the base; leaflets 3-7, more usually 5, cuiieate-oblong or oblan- 
 ceolate, f'-li' long, narrowed at the base, acute or obtuse, smoother 
 above, about half as long as the petioles ; raceme spicate, usually short- 
 peduncled, 2 7 -3 7 long; flowers alternate, wings equaling the keel; 
 bracts persistent ; calyx ebracteolate, upper lip 2-cleft, shorter than the 
 subentire lower one ; petals purple or rose-color, 4 7/ long, equal ; legumes 
 over J 7 long, very hirsute, about 2-seeded ; seeds orbicular, flattened. 
 Hall & Harbour, 94 ; B. H. Smith ; Brandegee. Near Denver, Coulter ; 
 Porter. 
 
 TRIFOLIUM LONGIPES, Xutt. Somewhat pubescent; root creeping; 
 stems erect or ascending, simple, 3 7 -l high ; petioles slender; leaflets 
 linear-lanceolate, serrulate, silky-pubescent beneath ; radical ones often 
 oval or oblong; stipules semi-lanceolate, acuminate; heads of flowers 
 sub-globose, ebracteate, on long peduncles ; flowers ochroleucous, rarely 
 purple, frequently deflexed in fruit ; calyx-teeth setaceous, longer than 
 the tube, nearly equal; petals lanceolate; ovary 4-5 ovtiled. Parry* 
 Mount Lincoln at 12,000 feet altitude, Coulter. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 21 
 
 TRIPOLIUM NANUM, Torr. Glabrous, csespitose, caudex short and thick, 
 branching, 1/-2' high ; leaflets ovate oblong, somewhat acuminate, den- 
 ticulate, strongly veined, on rather long petioles; stipules membrana- 
 ceous, ovate, cuspidate; peduncles very short, radical; uinbellately about 
 3-flowered; flowers large, J' long, dark purple, scarcely unfolding; calyx 
 tubular-campanulate, glabrous, teeth nearly equal, triangular-subulate, 
 shorter than the tube; vexillum broadly obovate, 3-times the length of 
 the calyx; legume 4-5-seeded. Alpine. Hall & Harbour, 99; Parry; 
 ' Brandeyee. Mount Lincoln at 14,000 feet altitude, Coulter. 
 
 TRIFOLIUM DASYPHYLLUM, T. & G. Denselycoespitose; caudex short 
 and thick, branching, 2'-4' high ; leaves, peduncles, and calyx more or less 
 cauesceutly silky ; leaflets linear, oblong-lanceolate, acute or acuminate, 
 entire; stipules membranaceous, lanceolate, subulate-acuminate; head 
 globose, on a long radical peduncle, bracteate, V in diameter ; bracts 
 lanceolate, scarious-inargiued, unequal ; teeth of the calyx setaceous, 
 nearly equal, exceeding the tube and a little shorter than the corolla; 
 corolla 4"-6 // long, scarcely unfolding; legume 3-4-seeded. Alpine. 
 Hall cO Harbour, 97 ; .Parry, Median. Sangre de Cristo Pass, Brande- 
 gee. Mount Lincoln, Mount La Plata and Gray's Peak at 12,000 feet 
 altitude, Coulter. 
 
 TRIFOLIUM PARRYI, Gr. Sill. Jour. (JV. 8.) 33, p. 409. Glabrous, circu- 
 lose, subcaulescent ; scape 3'-4' high, leafy at base ; stipules ovate, 
 scarious; leaflets oblong, (J-1J",) sharply dentate ; involucre scarious, 
 5-7-parted, much shorter than the many-flowered head ; segments ovate, 
 obtuse; calyx about thrice shorter than the persistent, rose-purple 
 (G"-9") corolla, teeth broadly-subulate, about equaling the campauulate 
 tube ; flowers 20 or more in a head ; legumes sessile, 3-4-seeded. Al- 
 pine. Hall c(; Harbour, 98; Parry; Median. Common on the higher 
 mountains, Coulter. Gray's Peak at 11,000 feet, Eedfield. 
 
 TRIFOLIUM INVOLUCRATOI, AVilld. Xearly erect, glabrous ; slender, 
 branching from the base, 10'-18' high ; leaflets linear-lanceolate, mucro- 
 nate, spiuuosely-serrulate, l'-l J' long]; stipules membranaceous, oblong- 
 ovate, aristate, the upper ones pectinately dentate with setaceous 
 teeth; the. lowermost narrower and nearly entire ; involucre laciniately 
 many-cleft, a little shorter than the rather loose subheniispherical heads ; 
 heads V or more in diameter ; flowers purple, tipped with white ; teeth 
 of the calyx longer than the tube and much shorter than the corolla, 
 subulate from a very broad base ; legume stipitate, 5-G-seeded. Fremont 
 County, Brandegee. 
 
 HOSACKIA l PuRsniANA, Beuth. Much-branched, G'-2 high, annual, 
 erect, more or less hairy, sometimes softly villous; leaflets 3, (rarely 4,) 
 ovate to lanceolate, rather acute; stipules minute, blackish; peduncles 
 longer than the leaves, 1-flowered; bract simple; calyx deeply parted ; 
 corolla 3"-4" long, scarce exceeding the calyx, keel attenuated upward, 
 falcate ; petals rose-colored, the vexillum with deeper minute stripes ; 
 legume V or more long, straight, not attenuate above. Hall ct Har- 
 bour, 108. 
 
 PSORALEA LAJS T CEOLATA, Pursli. Nearly glabrous, with a few scat- 
 tered hairs and numerous dark-colored glands, erect, 1 high, much 
 
 1 HOSACKIA, Dougl. Calyx tubular or somewhat campauulate, 5-cleft or toothed- 
 Vexillum as long- as the spreading wings, often distant from those of the other petals- 
 Keel as long as the vexillum. Style subulate, usually somewhat straight. Stigma 
 capitate. Legume somewhat compressed, wingless. Herbs or stitirutescent plants (all 
 American.) Stipules very minute, sometimes foliaceons. Peduncles axillary or um- 
 bellately 1-3 many-flowered; commonly with a 1-3-foliolate bract below the flowers. 
 Torr. &QT. n. X. 'Am. 
 
22 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 branched; lea-res palraately3-foliolate; leaflets y-V long, linear-lanceolate 
 or elliptical-oblong, rather obtuse, slightly mucronate, sessile; peduncles 
 longer than the leaves ; raceme short, 6-15-flowered ; calyx-teeth minute, 
 acute; corolla 3" long, bluish ; legumes globose, sparingly hirsute, cov- 
 ered with larger dark-brown glands. Hall & Harbour, 101; Dr. Smith; 
 B. H. Smith. Very abundant on the plains around Denver and Colorado 
 Springs, Porter. 
 
 PSORALEA DIGITATA, Xutt. Ganesceut, diffusely branched, branches 
 slender; leaves 5-foliolate; leaflets cuneate-oblong and oblong-linear with 
 an abrupt, rigid point, If long, 2"-4" wide, smooth and minutely dotted 
 above, hirsute beneath, longer than the petioles; stipules lanceolate, re- 
 flexed; spikes short, interrupted, on very long peduncles, the clusters 
 3-6 flowered ; flowers sessile; bracts obcordate or reniforin ; calyx villous, 
 half as long as the corolla, segments ovate, acuminate, the lowest one 
 produced; vexillum roundish-obovate ; legume orbicular-ovate, com- 
 pressed, hirsute, not wrinkled; seeds ovate. Purgatory River, Dr. Bell. 
 
 PSORALEA FLORIBUNDA, Nutt. Dr. Smith; B. H. Smith; Porter. 
 Abundant on the plains of the Platte, Coulter. Hall & Harbour, 102. 
 
 PSORALEA ARGYOPIIYLLA, Pursh. Hall & Harbour, 103; Porter. 
 
 PSORALEA CUSPIDATA, Pursh. (P. cryptocarpa, T. & G.) Stein l-2 
 high, terete, branched, canescent with appressed pubescence; leaves 
 5-foliolate; leaflets obovate or elliptical-oblong, I'-IJ' long, obtuse or 
 acutish, mucronate, about as long as the petiole, minutely dotted, pube- 
 scent; stipules subulate ; peduncles much longer than the leaves ; spikes 
 ovate or oblong, flower-clusters crowded; flowers blue; bracts lanceolate, 
 cuspidate, shorter than the flower; calyx large, somewhat inflated, gib- 
 bous at the base, conspicuously dotted, teeth triangular lanceolate, acu- 
 minate, two upper ones united to the middle, the lower one produced : 
 legume ovate, membranaceous, scarcely pointed, not wrinkled, hid in 
 the large calyx. Purgatory River, Dr. Bell. 
 
 PSORALEA HYPOG^EA, Nutt. Acaulescent; root tuberous, oblong, edi- 
 ble, about I' long ; stemless, hirsute with whitish appressed hairs ; leaves 
 5-7 foliolate; leaflets linear-lanceolate or linear-oblong, usually acute, 
 I'-IJ' long, 2"-3" wide, nearly glabrous above; spikes capitate, on 
 peduncles much shorter than the petioles; bracts lanceolate; calyx 
 cleft below the middle, segments linear, acuminate, the lowest lanceo- 
 late, elongated ; corolla pale-blue ; banner o\>long, of the length of the 
 wings and twice as long as the keel. Sandy plains of Xorthern Colo- 
 rado. Rare. Greene. 
 
 DALEA ALOPECUROIDES, Willd. Hall cO Harbour, 104; Dr. Smith; 
 Brandegee. 
 
 DALEA LAXIFLORA, Pursh. Glabrous, 3-4 high, erect, branched 
 above; branches slender and spreading; leaflets 4-5 pairs, linear-ob- 
 long, 2"-3" long, %" wide, strongly dotted; spikes panicled, few-flow- 
 ered; flowers distant ; bracts very broad, almost orbicular, glandular, 
 coriaceous, glabrous, slightly cuspidate, embracing the flower; calyx 
 deeply cleft, teeth long, setaceous, beautifully plumose; corolla white, 
 keel twice as long as the wings, vexillum cordate, very small, sometimes 
 with 4 approximated glands near the middle. Hall & Harbour, 100. 
 
 DALEA NANA, Torr., var. ELATIOR Torr. PI. Wright, I, p. 46. Stems 
 about 1 high, canescent with appressed pubescence, branching; branches 
 leafy to the to]); leaves remote; leaflets 2-3 pairs, oblong and obovate, 
 slightly apiculaU', clothed with silky, canesceut hairs, not dotted, H"-4" 
 long; spikes ovate, loosely-flowered, elongated and cylindrical in 
 
SYNOPSIS OF THE FLORA OF COLORADO. 23 
 
 fruit, I/ long, on short peduncles or sessile on the ends of the leafy 
 branches; bracts obovate, apiculate, about the length of the yellow 
 flowers: calyx deeply cleft, teeth setaceous, plumose. Purgatory River, 
 Dr. Bell. Closely allied to D. a urea, from which it differs in its diffusely 
 spreading-, slender stems, repeatedly branched and leafy to the spikes, 
 which are smaller and much less dense. 
 
 DALEA JAMESII, Torr. Stems several from one root, 4'-9' high, 
 somewhat woody at the base; whole plant silky-pubescent; leaves pal- 
 mately tri-foliolate, not dotted with glands; leaflets obovate, very obtuse; 
 stipules setaceous, erect, rigid, 4" long; petioles G"-!)" long; spikes 
 oblong, sessile, dense and broad, about I 7 long; bracts ovate, acuminate, 
 longer than the calyx; calyx deeply cleft, segments setaceous, plumose, 
 longer or shorter than the vexillum; flowers golden-yellow. Caiion 
 City, Brandegee. 
 
 PETALOSTEMON YIOLACEUS, MX. B. H. Smith. Colorado Springs 
 Porter. Plains of the Platte, not as common as the following, Coulter. 
 
 PETALOSTEMOX CANDIDUS, MX. Common on the plains. Dr. Smith: 
 Coulter : Porter. 
 
 PETALOSTEMON MACROSTACHYUS, Torr. Ann. X. Y. Lye., 2, p. 176. 
 Glabrous, stem l-2 high, branched, dotted, leaflets 2-3 pairs, lanceo- 
 late-oblong, obtuse, dotted beneath, J' long, upper surface becoming deep 
 verdigris-green in drying; spike cylindrical, elongated, 6 and more 
 when old, the rachis villous ; bracts lanceolate, as long as the flower; 
 calyx silky- villous, teeth lanceolate; vexillum cordate; petals linear- 
 oblong, narrowed at the base and nearly white; legume inclosed in the 
 persistent calyx, gibbous, compressed, baity. Hall & Harbour, 105. 
 
 AMORPHA FRUTICOSA, L. On the plains, along the Platte, Coulter. 
 Pueblo County, Redlidd. 
 
 AMORPHA CANESCENS, Xutt. Plains, Porter. 
 
 ROBIN IA XEO-MEXICANA, Gr. PI. Thiirb., p. 314. Shrub 4-G- high ; 
 stipular prickles subrecurved, sharp and stout; leaflets elliptical or 
 oblong, i'-l' long; peduncles and the short, crowded racemes hispid 
 with straight glaiiduliferous hairs; calyx finely hispid, teeth subulate- 
 lanceolate; corolla rose-color ; pods glandular-hispid. Resembles in its 
 flowers E. rixeoxa. Cucharas River, Huerfauo County, Greene. 
 
 ASTRAGALUS CARYOCARPUS, Ker.Hall i(- Harbour, 132 and 133. 
 Brandegee. On the plains and in South Park, Porter. 
 
 ASTRAGALI'S MEXICANUS, A. DC. 
 
 ASTRAGALUS PLATTENSIS, Kutt. We have seen no specimens 01 
 this nor of the preceding species from Colorado, but from the range 
 ascribed to them by Dr. Gray in his Revision, Proe. Am. Acad.. vol. 6, p. 
 193, they doubtless exist there. 
 
 ASTRAGALUS MOLLISSUMUS, Torr. Ann.X. Y. Lye., 2, p. ITS. Perennial, 
 subacaulescent, shining with a soft silky-villous, often yellow, pubes- 
 cence ; peduncles long, scape like; spikes dense; flowers rather large, 
 violet; calyx tubular; pod cartilaginous, oblong, turgid, 5"-9" long, 
 very smooth, subdidymous, ovary also glabrous; stipules lanceolate, 
 free, cohering below the petiole; leaflets 11-14 pairs, ovate-oblong or 
 oval, V long, obtuse, but slightly inucronate. Hall c(* Harbour, 122. 
 On the plains, scarce, 'Dr. Bell. 
 
 ASTRAGALUS CANADENSIS-, L. At the base of the foot-hills and 
 along water-courses of the plains. B. H. Smith; Porter; Brandegee. 
 
 ASTRAGALUS ADSURGENS, Pall. (A. stria-tux, Xutt.) Gray's Eer. 
 
24 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 Proc. Am. Acad., 7, p. 197. Perennial, cinereous with minute appressed 
 pubescence, or glabrate; stems rather stout, 4'-18' high, ascending 
 or decumbent, sulcate as well as the peduncles; stipules scarious, 
 mostly united at base; leaflets 10 pairs, 6"-9" long, oblong, or linear- 
 oblong; peduncles long, stout, strict, strongly sulcate, ' often nearly 
 equaling the leaves; spike dense, at length oblong or cylindrical; 
 flowers purplish, medium-sized, ascending; calyx-tube rather long, 
 campanulate, twice longer than the setaceous teeth, subvillous with 
 light or dark hairs; pod coriaceous, pubescent, sessile, ascending, 
 ovate-oblong, 4"-5" long, straight, usually triangular-compressed, with 
 a dorsal sulcus and two-celled by the intruded dorsal suture, tnany- 
 ovuled. Hall & Harbour, 135; Canby ; Brandegee;' Porter. Plains of 
 the Platte, Coulter. Wet Mountain Valley, Red field. 
 
 ASTRAGALUS HYPOGLOTTIS, L. Gray's Rev. I. c., p. 197. Perennial, 
 with a rather loose pubescence ; steins 6'-2 long, slender, diffusely 
 procumbent or ascending; stipules subfoliaceous, and more or less 
 sheathing; leaflets 7-10 pairs, oblong, obtuse or retuse; heads few 
 to many-flowered; corolla violet, y long; legume ovate-triangular, 
 softly, silky-villous with white hairs, very shortly stipitate and but 
 2-8 seeded. Hall & Harbour, 139; Canly; B. H. Smith; Porter; 
 Brandegee. Common on the plains and in the mountains, Coulter. 
 
 ASTRAGALUS BRANDEGEI, Porter (n. sj).) Cauescent with minute 
 appressed hairs; branching from a somewhat woody base, branches as- 
 surgent, 6' high ; leaflets in 5 rather distant pairs, linear, obtuse, in- 
 volute, glabrous above, G'MS" long ; stipules lanceolate, acuminate, 
 slightly aduate to the petioles; peduncles much longer than the leaves, 
 slender, erect ; flowers about 5, in a loose raceme, very small, lJ /7 -2 7/ 
 long; calyx turbinate, hairy, tube a little shorter than the subulate 
 teeth ; corolla white or cream-color, tinged with purple, banner exceed- 
 ing the keel, reflexed ; pod hairy, turgid, obovoid, with a shallow dorsal 
 sulcus, 4"-7 // long, coriaceous, abruptly-pointed, short-stipitate, straight, 
 ascending, twice the length of the slender pedicel, 2-celled or nearly 
 so, many-seeded. 
 
 This new Astragalus, which belongs to Section 9, Micrcwihi, of Gray's 
 Revision, is allied to A. atratm, Watson. I have named it in honor of the 
 zealous collector from whom it was received. Banks of the Arkansas, 
 near Canon City, T. S. Brandegee, June 2G, 1873. 
 
 ASTRAGALUS DRUMMONDII. Dougl. Gr. Rev. I c., p. 200. Perennial, 
 softly-villous ; stem erect, 1-U high, stout, sulcate, very leafy; 
 leaflets 10-15 pairs, oblong and linear-oblong, obtuse, narrowed at 
 the base; stipules distinct, free, ovate, acuminate; peduncles longer 
 than the leaves, erect, spikes loosely-flowered ; flowers rather large, 
 white or ochroleucous, with the point of the keel purple-tinged, pendulous 
 and somewhat secund ; calyx-teeth subulate, shorter than the tube, 
 scarcely gibbous at base, pilose with blackish hairs ; pod very smooth, 
 stipitate, exserted from the calyx, pendulous, linear-oblong, coriaceous, 
 straight, terete-biventricose,with a narrow, very deep sulcus, completely 
 or incompletely divided by the intrusion of the dorsal suture. Hall & 
 Harbour, 124. Near Colorado Springs, Porter. Wet Mountain Valley, 
 Brandegee. Plains near Denver, Coulter. Ula, Wet Mountain Vallev, 
 Redfield, 
 
 ASTRAGALUS SCOPULORUM, Porter (n.sfj.) Pubescent with appressed 
 hairs; stems ascending, about 1 high, angled, branching; stipules 
 (especially the lower ones) somewhat coherent; leaflets 9-13 pairs, 
 obovate or oblong, abruptly short-pointed, glabrous above; peduncles 
 
SYNOPSIS OF THE FLORA OF COLORADO. 25 
 
 strict, erect, longer than the leaves, loosely many-flowered; bracts 
 scarious, subulate, longer than the pedicels; flowers yellow or ochroleu- 
 cous, re flexed; corolla rather large, 9" long; calyx gibbous at base, 
 pilose with blackish hairs, the subulate teeth scarce half as long as the 
 cylindrical tube; pod over I 7 in length, stipitate, exserted from the calyx, 
 pendulous, oblong, becoming arcuate with age, sharply 3-angled, cbart- 
 aceous, the dorsal suture salient, with an acute sulcus on each side, in- 
 truded half way to the ventral. This species must be referred to Sect. 
 11, Ga1egiforme8,of Gray's Revision, and seems in many respectsto fill an 
 intermediate position between A. Drummondii and A. racemoswi. South 
 Park, July 24, 1872, Porter. Wet Mountain Valley, 1873, Brandegee, in 
 flower and fruit. 
 
 ASTRAGALUS RACEMOSUS, Pursh. Gr. Rev. 1. e., p. 200. Appressed- 
 pubescent or glabrate ; stem l-2 high, rather stout, somewhat silicate, 
 very leafy; stipules distinct, free; leaflets in about 10 pairs, elliptical- 
 oblong or oval, obtuse, mucronate, 6" -8" long; peduncles about the 
 length of the leaves, loosely many-flowered; flowers nodding and 
 somewhat secund; calyx strongly gibbous at base, whitish-puberuleut, 
 the setaceous teeth slightly shorter than the tube, equaling the stipe ; 
 pod lance-oblong, 1' long* three-angled, not 2-celled, cross section 
 somewhat equally tri-radiate, very smooth. Leaflets glabrous above. 
 Hall c(- Harbour i 113. Wet Mountain Valley, Braudegee. 
 
 ASTRAGALUS GRACILIS, 2sutt. Gr. Rev. 1. c., p. 202. Erect, slender, 
 pubescent; stems virgate, 1 high or more from a very long, sweet 
 root; leaflets very narrowly linear, almost filiform, 7 // -10 // long, obtuse 
 orretuse, OtoSpairs: lower stipules somewhat united, the rest distinct: 
 raceme spike-like, many-flowered, long-peduncled. virgate ; flowers 3" 
 long, pale purple, recur ved-spreading; pods spreading, 2 // -3 // long, 
 coriaceous, strongly concave on the back, white hairy, at length glabrous, 
 transversely rugose-veined, elliptic-ovate, 1-celled, ventral suture thick 
 and subacute. Plains of Eastern Colorado, Dr. Bell. 
 
 ASTRAGALI^ MiCROLOBUS, Gr. Rec. I. c., p. 203. (A gracilix, Ton*, 
 in Ann. X. Y. Lye., p. 179.) Cinereous-pubescent ; stems erect and 
 ascending, about 1 high ; leaflets linear or oblong-linear, emarginate, 
 4 // -6 // long; racemes rather short and usually loosely flowered; flowers 
 deep purple, 4" long ; pods re flexed, thick, cartilaginous, puberuleut, 
 finely rugulose, turgid, a little flattened on the back, the ventral suture 
 very thick. Hall & Harbour, 119; Brandegee. 
 
 ASTRAGALUS ABORIGIXUM, Richards. Gr. Rer. 1. c., p. 208. Perennial 
 hoary-pubescent or subvillous ; steins numerous, rigid, ascending, J- 
 1 high ; stipules triangular, for the most part free ; leaflets 3-6 
 pairs, linear or oblong-lanceolate, acute ; peduncles exceeding the 
 leaves; flowers small (3 // -5 // long) in a compact raceme, white or 
 tinged with violet; calyx-teeth filiform-subulate, a little snorter than 
 the tube; legume loug-stipitate, reflexed, somewhat membranous, 
 glabrous, laterally subcompressed, (cross-section oval,) straight dorsally, 
 the ventral suture arcuate, 1-celled with a very narrow rudimentary 
 septum on the dorsal side, 10-15-ovuled. Xot seen by us, but re- 
 ported from the Rocky Mountains of Colorado by Watson in King's 
 Rep., vol. 5, p. 70. 
 
 ASTRAGALUS IODASTHUS, Watson. Kin(f* Rep., v. 5. p. 70. Peren- 
 nial, canescent with an appressed hairy pubescence, or nearly glabrous: 
 stems decumbent, G'-IO' long; stipules ovate-lanceolate, free or some- 
 what adnate to the petiole; leaflets G-10 pairs. 2 // -5 // long, obovate or 
 orbicular, obtuse ; peduncles equaling or shorter than the leaves; spikes 
 
26 
 
 oblon 
 subfa 
 other] 
 Harbour, 110. South Park, Port 
 
 ASTRAGALUS OROBOIDES, Hornem., var.. AMERICANUS., Gr. Her. 
 1. c., p. 205. Subcinereous-puberulent ; stems suberect. 1-1 J high ; 
 leaflets 5-7 pairs, oblong and oval, or often linear-oblong, scarcely 
 retuse; flowers 3"-4" long, violet or deep purple, tbe wings exceed- 
 ing the keel ; pod 5"-G" long, 3 or 4 times longer than the calyx, 
 moderately sulcate, few-seeded; stipe very short. Hall & Harbour, 
 117. "Along the bank of streams, at middle elevations and subalpiue.*' 
 Mt. Lincoln at 12,000 feet altitude, Coulter. 
 
 ASTRAGALUS ALPLNUS, L. Alpine and subalpine. Hall <fc Harb cur 
 125 ; Dr. Smith ; Brandegee. South Park, Porter. Mt. Lincoln at 13,000 
 feet altitude, Coulter. 
 
 ASTRAGALUS SPARSIFLORUS, Gr. Rev. 1. c., p. 205. Slightly ap- 
 pressed-pilose or glabrate; stems 1 or more in length with many slen- 
 der branches, diffuse; stipules triangular-subulate, distinct; leaflets 
 4-0 pairs, obovate or subrounded, often emarginate, 2"-3 // long ; 
 peduncles scarcely exceeding the leaves, 3-10 flowered ; flowers 3" 
 long, bluish-white, the emargiuate or bifid banner and the wings much 
 exceeding the incurved keel; calyx-teeth equaling the tube; ovary 8- 
 12-ovuled, short-stipitate ; pod, 3"-0" long, coriaceous, oblong, in- 
 curved, pubescent with short hairs, mottled, 2-celled to the middle, 
 very short stipitate, ventral suture acute. Hall tl* Harbour, 128. Oak 
 Creek, Fremont County, Brandegee. 
 
 ASTRAGALUS LOTIFLORUS, Hook. Gr. Rev. L c., p. 208. Hoary or 
 cinereous with appressed hairs ; stems very short ; leaves lance-ob- 
 long ; peduncles exceeding the leaves or very short ; heads few-flow- 
 ered ; flowers yellowish ; calyx-teeth subulate, exceeding the tube ; pod 
 about V long, oblong-ovate, inflated, sub canescent, the cross-section 
 obovate, retuse or usually broadly obcordate toward the base. Hall it* 
 Harbour, 131. Near Denver, Coulter. 
 
 ASTRAGALUS PUBENTISSIMUS, T. & G. Gr. Rt\\ I. c., p. 209. Dwarf, 
 hirsute-canescent with a loose pubescence, many-stemmed from an 
 annual or biennial root ; leaflets oblong or obovate"; flowers few, rather 
 small, purplish- white, subracemose upon a short peduncle, calyx-teeth 
 equaling the campanulate tube ; pod villous, 9"-10" long, inflated, 
 membranaceous, ovate-lunate, strongly incurved, sulcate on the back 
 with a slight introflexion of the suture. " Colorado Territory, near the 
 sources of the Colorado of the West. Found only by Xuttali." 
 
 ASTRAGALUS MISSOURIENSIS, Nutt. Gr. Rev. 1. c., p. 210. Subcanles- 
 cent, hoary-silky with a short, very closely appressed pubescence ; usu- 
 
SYNOPSIS OF THE FLORA OF COLORADO. 2T 
 
 ally prostrate or matted; peduncles scape-like, eapitately few flowered 
 or spieately H-14 flowered; calyx-teeth about halt' shorter than the 
 cylindrical tube; leaflets 5-10 pairs, elliptical and obovate-elliptical ; 
 corolla bright violet (or rarely white;) pod thick, coriaceous, ohcom- 
 pressed, nearly straight, about 1' long:, blackish, elliptic, transversely 
 rngulose. Hall & Harbour. 127. Purgatory River, I)r. Bell. Canon 
 City, Brandegee. 
 
 ASTRAGALUS SHORTIANUS, Nutt. Gr. Rer. 1. c., p. 210. Usually sub- 
 acanlescent, silky-canescent with a very closely ai)pressed pubescence ; 
 leaflets obovate or ovate, 7"-10" long; peduncles scape-like few 
 many-flowered, commonly shorter than the leaves; calyx 6" long, cyl- 
 indric, teeth shorter than the tube ; corolla violet or blue, rather large 
 and showy; pod l'-2' long, ovate or ovate lanceolate, thick, coriaceous, 
 obcompressed, intruded dorsal suture approaching the ventral, not 
 -celled, transversely mgnlose, pointed and strongly arcuate, thick, more 
 or less pubescent. Hall & Harbour, 120 (A. cyane-uft,Gr.;) Brandegee. 
 Clear Creek Canon, Coulter. 
 
 ASTRAGALUS PARRYI, Gr. Rer. L c., p. 211. Stem short, prostrate, 
 villons with loose spreading hairs; leaflets 7-13 pairs, obovate or 
 oblong, 3"-9" long; peduncles rather short : flowers 6-10, loosely sub- 
 capitate, G^-IO" long, whitish or yellowish, the keel tinged with pur- 
 ple ; calyx-teeth half shorter than the cylindric tube; pod pubescent, 
 oblong-lanceolate, 1' longer or more, arched or at length em-mate, ob^ 
 compressed, rugulose, both sutures sulcately impressed, contiguous, 
 Hull & Harbour, 123; Brandegee. Near Denver, Coulter. Specimens 
 from Brandegee have the assnrgent stems tVom 8'-10' long. with 2-3 
 peduncles from the axils of the leaves. 
 
 ASTRAGALUS TRIFLORUS, Gr. Rev. L c. r p. 214. Annual, cinereous- 
 pubescent, very much branched from the base, brandies ascending, 
 t> / -12 / high; stipules acuminate, slightly adhering at base; leaflets 
 5-7 pairs, oblong or linear-oblong often truncate at the apex and retuse. 
 4'/_g" long; peduncles in fruit, exceeding the leaves; flowers 3-15, 
 ochroleucous, tinged with purple, small, about 3" long; calyx-teeth 
 subulate, equaling the tube; pod sessile or on a short pedicel, mem- 
 branous, inflated, oval, obtuse or acutish 7 // -12 // long, finely reticulated, 
 pubescent, neither suture inflexed, dorsal snlcas deep and narrow, 
 many-seeded. Canon City, Brandegee. 
 
 ASTRAGALUS PICTUS, Gr. Rev. L c., p. 2U. Root filiform ; hoary 
 with a loose silky pubesceuce; stipules rigid, persistent, connate; leaflets 
 3-7 pairs, narrowly line-ir or filiform, G"-18" long, most of them usually 
 abortive; flowers few, rather small: keel with the iuflexed apex some- 
 what produced, pale rose-colored ; pod G"-1S" long, mottled with pur- 
 ple blotches, ovoid, short stipitate, stipe equaling the calyx, scarcely 
 point* (1, pendent. 
 
 Yar. FILIFOLIUS, Gr. /. c., p. 215. (A. JiUfolius. Gr.) Leaves usually 
 imperfect; leaflets very few, mostly attenuated, I'-li' long, terminal 
 one, or the filiform rachis produced, persistent; legume I'-IJ 7 . On 
 the plains. Hall & Harbour, 138. Denver and Colorado Spriiigs,~Porte?\ 
 
 ASTRAGALUS FRIGIDUS, Gr. Rev. L <% p. 219. Subglabrous, erect, 
 l-2 high; stipules ovate-oblong, membranous, hairy; leaflets 7-9 
 pairs, ovate-oblong or elliptic-oblong, green ; peduncles equaling the 
 leaves; calyx- teeth short; corolla white; pod oblong, acute at each end, 
 black-hairy or glabrous, 1-celled, the stipe equaling or exceeding the 
 calyx. a Subalpiue, in wet pine woods." Hall d Harbour, 137. 
 
 ASTRAGALUS LONCHOCARPUS, T. & G. Gr. Rev. 1. e., p. 219. (Phaca 
 
28 SYNOPSIS OF THE FLOKA OF COLORADO. 
 
 macrocarpa, Gr. PI. Fendl., p. 36.) Ashy-puberulent, glabrate, perennial; 
 stem fistulous, sulcate, branched, 2 long; stipules distinct, small; 
 leaflets 1-5, linear or filiform-linear, remote, the leaf sometimes reduced 
 to the flattened filiform rachis; racemes loosely many-flowered, on 
 long, strict, stontish peduncles; bracts one-half shorter than the pedi- 
 cels ; flowers white, pendent ; calyx-teeth broad-subulate, much shorter 
 than the tube; pod membranous, lanceolate-cylindrical, straight, I'-IJ' 
 long, very sharply acuminate at each end, exsertly stipitate, glabrous, 
 neither suture intruded. Wet Mountain Valley, Brandegee. 
 
 ASTRAGALUS LEPTALEUS, Gr. Rev. 1. c., p. 220. Nearly glabrous, 
 stem slender, ascending, a span high; stipules long-subulate, sub con- 
 nate at base; leaflets 7-11 pairs, lance-linear or oblong, often acute; 
 peduncles 2-4 flowered, shorter than the leaves; calyx with short, 
 black hairs, the campanulate tube slightly exceeding the subulate teeth, 
 about equaling the pedicel and subulate bract; corolla 4" long, white, 
 the emargiuate banner a third longer than the violet-tipped keel ; pod 
 ovate or oval, 4" long, puberulent, chartaceous. Hall ct* Harbour, 141 ; 
 Brandegee. Sierra Madre Range, Coulter. 
 
 ASTRAGALUS BISULCATUS, Gr. Rev. I. c., p. 221. Perennial, strig- 
 ulose-puberulent ; stein erect, over 1 high, stout ; stipules distinct, free; 
 leaflets oblong, often narrow, the lowest near the stem ; flowers violet, 
 in dense, spike-like racemes, middle sized, pendent or spreading, keel 
 nearly straight ; calyx-teeth setaceous, scarcely shorter than the cam- 
 panulate tube ; pod coriaceous, ' long, shortly exsert-stipitate, straight, 
 oblong, semi-cylindric, the deeply concave ventral surface- divided by 
 the salient, obtuse suture. Hall & Harbour, 130. Platte River, Coulter. 
 
 ASTRAGALUS PECTINATUS, Dougl. Gr.Rev. I c., p. 221. Perennial, 1 
 high; stem and leaves rather rigid, ashy-puberulent, glabrate; branches 
 striate, angled; leaflets 4-10 pairs, nearly filiform, not jointed to the 
 rachis, persistent ; lower stipules connate ; flowers nearly I 7 long, white, 
 many, in a rather short raceme; keel nearly straight, banner elongated; 
 pod thick, cartilaginous, subovate or oblong, turgid, sessile or short- ped- 
 iceled, neither suture intruded, but both thick and prominent, 6" long, 
 pendulous, glabrous, cuspidate. Hall & Harbour. 134; Canby ; Dr. 
 Bell. 
 
 ASTRAGALUS FENDLERI, Gr. Rev. 1. c., p. 224. Perennial, glab- 
 rous, or appressed-puberuleut, erect, over 1 high ; leaflets oblong or 
 linear-oblong; racemes long-peduncled, loosely flowered ; flowers pur- 
 ple ; pod oval, inflated, chartaceous-coriaceous, about I' long, straight, 
 pointed, minutely puberulent, very shortly stipitate. In New Mexico 
 and Colorado according to Gray's Revision, but not seen by us. 
 
 ASTRAGALUS HALLII, Gr. Rev. l. c., p. 224. Subcinereous-pub- 
 escent, glabrate; stems rather stout, ascending; stipules subulate ; leaf- 
 lets 9-12 pairs, narrow, oblong, 4 // -7 // long, subcuneate, retuse; pedun- 
 cles exceeding the leaves; flowers violet, 20 or more in a dense head- 
 like raceme; calyx dark- pubescent, broad-campanulate, very gibbous 
 at base, 3" long, the rather obtuse, broad teeth, 3-4 times shorter than 
 the tube ; pod oblong, inflated, 1"-W long, glabrous, straight, pointed, 
 chartaceous-coriaceous ; stipe, 1" long. Hall & Harbour, 121 ; Canby. 
 Twin Lakes, Coulter. South Park, Porter. 
 
 ASTRAGALUS FLEXUOSUS, Dougl. Gr. Rev. 1. c., p. 224. Ashy-pube- 
 rulent; stems ascending, 1 high, flexuose; leaflets oblong or cuneate- 
 linear, obtuse or retuse; peduncles exceeding the leaves; racemes 
 mostly elongated, loose ; flowers 4" long, white or purplish ; calyx hoary. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 29 
 
 pubescent, teeth 3 times shorter than the tube ; pod cylindric, 8"-ll" 
 long, 2" broad, puberulent, thinly coriaceous, straight or sub-incurved ; 
 stipe very short but evident. Common at middle elevations. Hall & 
 Harbour j 11^ -j Dr. Smith; Canby ; Porter; B. H. Smith : Brandegee ; 
 Median; Coulter. 
 
 ASTRAGALUS MULTIFLORUS, Gr. Rev. I. c., p. 226. (A. nigrescens, 
 Gr.) Perennial, somewhat glabrous; stems 1 high, numerous, ascending, 
 branched; stipules dark-colored, the lower ones at least sheathing ^ 
 leaflets 6-10 pairs, 3"-6" long, linear or narrowly oblong, acute or ob- 
 tuse; peduncles not exceeding the leaves, loosely few-flowered ; flow- 
 ers ochroleucous, tinged with purple, small, 2 // -3 // long, the campanu- 
 late calyx-tube rather longer than the setaceous teeth, and about equa- 
 ling the stipe ; pod vetch-shaped, flattened or compressed, straight, mar- 
 gined by the nerve-like sutures, 4 // -6 // long, reflexed, 1-celled, 2-4-seeded. 
 Hall & Harbour, 115. South Park, Porter. Sierra Madre Bange, 
 Coulter. 
 
 ASTRAGALUS CAMPESTRIS, Gr. Rev. 1. c., p. 229. Perennial, mi- 
 nutely pubescent or glabrate; stems 3'-15' high, numerous, ascend- 
 ing, slender, simple ; stipules, at least the lower ones, membranous and 
 sheathing, large, acuminate; leaflets 5-9 pairs, 3"-15" long, linear, 
 linear-lanceolate or oblong, usually acute ; peduncles slender, exceeding 
 the leaves, 5-10-flowered, flowers sub capitate or scattered, 4" long, 
 ochroleucous, tinged with purple, the keel with a purple, long and nar- 
 row inflexed tip; pod 6 // -12 // long, chartaceous, not stipitate, sub- 
 puberulent, subco in pressed, oblong-linear, nearly straight, valves sub- 
 turgid, the pedicels at length reflexed, 1-celled, 10-15-ovuled. Meehan. 
 Ute Pass, and on the Upper Arkansas, Porter. Mount Lincoln, Coulter, 
 
 ASTRAGALUS DECU^IBEXS, Gr. Rev. I. c., p. 229. (Homalobus de- 
 eumbens, Xutt .) Cinereous or silky-pubescent ; stems diffuse or ascend- 
 ing, 6'-10' high; petioles sometimes somewhat flattened, mostly with 
 7-13 linear-lanceolate, acute leaflets ; racemes 5-10-flowered; calyx-teeth 
 attenuate, a little shorter than the tube ; corolla 4"-4J" long, ochro- 
 leucous or purplish; keel with a short, inflexed tip; pod broad-linear, 
 straight or falcate, about V long, hoary-puberulent. Hall d* Harbour, 
 142. Idaho Springs, Redfield. 
 
 ASTRAGALUS DIVERSIFOLIUS, Gr. Rev. I. c., p. 230. Ashy-strig- 
 ulose; stems diffuse, decumbent, elongated, about 1 high; petioles 
 short, flattened, 1-5 foliolate ; terminal leaflet or simple leaf linear, 
 elongated, l'-2', attenuated at each end; peduncle 1-5-flowered; calyx- 
 teeth half shorter than the tube ; corolla ochroleucous or lurid, keel 
 falcate-incurved ; legume oblong-linear, straight or subfalcate, f long, 
 canescent-puberuleut. " Gravelly plains of Colorado on both sides of 
 the Rocky Mountains,' 7 Gratfs Revision. 
 
 ASTRAGALUS JUNCEUS, Gr. Rev. 1. c., p. 230. Perennial, minutely 
 pubescent or subglabrous ; stems usually solitary, erect, paniculately- 
 branched, slender ; stipules small ; petioles slender, sometimes 6' long, 
 usually naked or with 1-5 pairs of linear leaflets; peduncles longer than 
 the leaves, 3-7-flowered; flowers 4" long, distant, ochroleucous or tinged 
 with violet; calyx- teeth usually small and obtuse, shorter than the cam- 
 paimlate tube; pod I'-IJ' long, as in the last species, with which it is 
 probably identical. u On the head- waters of the Colorado of the West," 
 Parry. 
 
 ASTRAGALUS SIMPLICIFOLIUS, Gr. Rev. I. c., p. 231. (Pliaca sim- 
 plicifolia, Xutt.) Perennial, c^spitose, in dense, cushioned mats ; leaves 
 "-5" long, hoary with an appresse 1 silky pubescence, simple, linear or 
 
30 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 spatulate-lanceolate, acute, frequently involute, crowding the extremities 
 of the usually short (') branches ; scapes scarcely exceeding the leaves, 
 2-3-flowered; flowers" 3" long, purple, the banner and the wings longer 
 than the strongly arphed keel ; calyx- teeth nearly equaling the obconical 
 tube ; legume 4" long, half included in the calyx, oblong, acute, sub- 
 compressed, glabrous, thick and coriaceous, 1-celled, the ventral suture 
 straight and very acute, the dorsal gibbous, about 12-ovuled. "Found 
 by Nuttall near the sources of the Platte." 
 
 ASTRAGALUS KENTROPHYTA, Gr. Rev. 1. c., p. 231. Perennial, 
 intricately branched from a long root, broadly-depressed-crespitose, 
 hoary with a short, silky pubescence ; stems 2'-4' long ; stipules mem- 
 branous, mostly connate, often setaceously or spinosely acuminate ; leaf- 
 lets 2-3 pairs, 2 // -4 // long, linear- subulate, usually rigid and divaricate, 
 pungent, not jointed with the rachis ; flowers 1-3, on short pedicels in the 
 axils of the leaves, 2" long, ochroleucous or tinged with violet ; calyx-teeth 
 setaceous, equaling the cainpanulate tube; pods 2 // -3" long, sub-charta- 
 ceous, compressed, sessile, pubescent, ovate, acuminate, somewhat in- 
 curved, 1-celled, 3-4-ovuled, 1-2-seeded, the valves separating at matur- 
 ity. Hall & Harbour, 10G; .Cariby; B. H. Smith. South Park, Porter ; 
 Brandegee. 
 
 ASTRAGALUS TRIDACTYLICUS, Gr. Proc. Am. Acad., v. 6, p. 527. Pe- 
 rennial, ca3spitose from a short woody caudex, dwarf, 2 / -3 / high, silvery- 
 silky ; leaves pinnately 3- foliate, long-petioled, exceeding the sessile, 
 crowded flowers ; leaflets oblanceolate, G" long, acute ; flowers 5" long, 
 pale purple ; calyx-teeth equaling the tube ; pod globose, ovoid, 3"-4" 
 long, very turgid, puberulent, 12-ovuled, 3-4-seeded ; calyx deciduous, 
 exposing the pod. St. Train Canon, May 26, Coulter. 
 
 ASTRAGALUS SERICOLEUCUS, Gr. Rev. 1. c., p. 232. Very broadly 
 caespitose, silky-hoary ; stems branched, prostrate ; branches covered 
 with the villous stipules; leaves all 3-foliolate, not equaling the 2-G-flow- 
 ered, filiform peduncles ; leaflets 3" long, oblanceolate or ctineate-obloiig ; 
 calyx-teeth about equaling the cainpanulate tube; corolla purple, 3"-4" 
 long; pod ovate-oblong, 3" long, hoary, half included in the calyx. 
 Sand-hills along the Platte, Hall & Harbour, 145. 
 
 OXYTROPIS MULTICEPS, Nutt. Canescently-silky, I'-S'-high ; stems 
 matted crespitose, from a branching caudex ; leaflets 3-4 pairs, oval, 3" 
 long; flowers purple, 6" long; fruiting calyx inflated, globose, including 
 the ovate, chartaceous-membranous pod; pod short-stipitate, sometimes 
 half 2-celled by the intrusion of the ventral suture. " Subalpine and 
 lower." Hall & Harbour, 144; Parry, 191. Boulder Canon, Coulter. 
 
 OXYTROPIS URALENSIS, L., var. PUMILA, Ledeb. Acaulescent, silky- 
 villous; leaflets 4-5 pairs, conjugate, 3" long, oblong-linear, re volute; 
 stipules long-adnate; scapes l'-2' long, 2-5-flowered; flowers violet- 
 blue; pod oval-oblong or long-oblong, ventral septum extending to the 
 dorsal suture. High alpine. (0. arctica, R. Br.,) Hall & Harbour, 143. 
 Mount Lincoln at 14,000 feet elevation, Coulter. 
 
 OXYTROPIS CAMPESTRIS, L. Parry. 
 
 OXYTROPIS LAMBERTI, Pursh. Very abundant on the plains and in 
 the mountains. Hall & Harbour, 140; Dr. Smith; B. H. Smith; Ccuiby ; 
 Meelian ; Porter ; Brandegee ; Coulter. 
 
 OXYTROPIS NANA, Kutt. Gr. Proc. Am. Acad. G, p. 23G. Ciespitose, 
 much divided, silky-canescent with a very close, appressed jjubescence ; 
 leaves very crowded; leaflets 3-4 pairs, obovate, 3" long; scapes 2 / -3 / 
 high, scarcely exceeding the leaves, 3-12-flowered ; flowers capitate, 
 
SYNOPSIS OF THE FLORA OF COLOKALO. 31 
 
 rather large, bine ; pod oblong, somewhat falcate, hairy, the ventral sep- 
 tum extending to the dorsal suture, 6-8-seeded. Northern Colorado, 
 on the authority of Xuttall. The characters of the fruit are drawn from 
 specimens collected by Mr. Coulter in 1872 on Henry's Fork of Snake 
 Eiver. 
 
 OXYTKOPIS SPLEXDENS, Dougl. Acaulescent, silvery, silky-villons 
 throughout, C / -12 / high; leaflets somewhat verticillate, 3-6 together, 
 very numerous, lanceolate, very acute, usually 5"-10" long; flowers 
 in an oblong spike, erect, spreading, usually deep blue; peduncles ex- 
 ceeding the leaves; flowers not much surpassing the calyx; pod ovate, 
 erect. Hall ' d' Harbour, 135; Parry; Canby ; Porter; Brandegee. St. 
 Train Canon and South Park, Coulter. 
 
 OXYTROPIS DEFLEXA, DC. Caulescent or subacaulescent ; more or 
 less silky- villous; stems ascending, 6'-9' long, leaflets ovate-lanceo- 
 late, 14-17 pairs; peduncles very much elongated, scape-like; upper 
 stipules, at least, aduate at the base, large, lanceolate, acuminate ; flowers 
 bright blue, about 4" long, rather small, with a short calyx-tube, spread- 
 ing, spicate or capitate; pods oblong, straight, pointed, 6"-9" long, pu- 
 bescent, usually reflexed. Middle elevations. Rail & Harbour, 120; 
 Parry, 433; Canby; Meehan. South Park, Porter; Brandegee. Twin 
 Lakes and Sierra Madre Range, Coulter. 
 
 Var. (?) Villous with spreading hairs, dwarf, acaulescent; leaves, in- 
 cluding the petiole, !'; leaflets in about 11 pairs, ovate, 2 // -3 // long; 
 peduncles 2' long; flowers 6-8, capitate; fruit not seen. Horse Shoe 
 Mountains, at 11,000 feet altitude, Coulter. 
 
 SOPHORA 1 SERICEA, Pursh. Herbaceous, low, 6'-12' high, more or 
 less silky-canescent; stems ascending or decumbent, branching from the 
 base ; leaflets about 21, elliptic or cuneate-oval, 2 // -3 // long ; racemes 
 terminal, short, at first scarce exserted beyond the leaves, short, l'-2' 
 long, peduncled; calyx gibbous at base, longer than the pedicels, cam- 
 panulate, 5-toothed, teeth obtuse half the length of the tube; corolla 
 4" long, banner reflexed, petals of the keel nearly distinct, acuminate, 
 inucrouate. Hall & Harbour, 146; Dr. Smith. Abundant on the plains 
 around Denver, Porter. Ute Pass and Clear Creek Canon, Coulter. 
 Lower branches elongated and far exceeding the fruiting racemes. 
 Colorado Springs, Redjiehl. 
 
 GLYCYRRHIZA LEPIDOTA, Xutt. Hall d; Harbour, 147 ; B. H. Smith; 
 Porter. Plains of the Platte, Coulter. 
 
 HEDYSAKU3I MACKENZii, Richards. Stems 2 high, sub-erect, mi- 
 nutely pubescent, simple or branched ; stipules, at least the lower ones, 
 connate ; leaflets 5-8 (usually 5) pairs, caneseently pubescent, oblong 
 or lanceolate, nearly glabrous above; racemes loosely 7-30-flowered, 
 elongating in fruit; flowers large, G"-9" long, light purple, keel ex- 
 ceeding the banner and wings ; calyx-teeth subulate, about the length of 
 the tube ; legume 2-4-jointed, minutely pubescent. Canon. City, Bran- 
 degee. Sierra Madre Range, Coulter. 
 
 Linn. Calyx broadly-campanulate, obliquely truncate or somewhat 5- 
 toothed at the summit, often somewhat turbinate or obconic at the hast-. Vexillimi 
 obovate or roundish, about the length of the other petals ; keel obtuse, nearly straight, 
 the petals somewhat united below the apex. Ovary nearly sessile, linear: ovules 
 numerous ; style nearly straight or incurved ; stigma minute. Legume moniliform, 
 indehiscent, (dry or fleshy,) not winged. Radicle usually indexed or incurved. 
 Trees. shrubs, or sometimes herbaceous plants, withunequallypinnate leaves. Stipules 
 subulate or none. Racemes axillary or terminal, sometimes paniculate. Bracts sub- 
 ulate, minute, often caducous. T. tjr G. FL X. Am. 
 
32 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 YICIA AMERICANA, Muhl. Common along nioun tain streams. Porter; 
 Coulter. 
 
 VICIA TRUNCATA, Nutt. T. & G. Fl. N. Am. 1, p. 270. Somewhat 
 pubescent. Stem l-2 high ; leaflets 5-6 pairs, oblong-linear, usually 
 truncate-serrate or tridentate at the apex, apiculate, about I 7 long, l"-2" 
 wide ; stipules lunate, incisely-serrate ; peduncles 4-7-flowered, rather 
 shorter than the leaves ; lower teeth of the calyx lanceolate, acuminate, 
 upper ones very short ; style villous at the apex ; legume 1' or more long. 
 Our plant varies from NuttalPs description only in the shorter and broader 
 leaflets ; flowers 9" long. Canon City, Brandegee. 
 
 VICIA MICRANTHA, Nutt. Glabrous, stam 2-3 long, strongly 
 angled, climbing; leaflets 6-12, 6"-9" long, 2" wide, oblong-elliptical, 
 obovate or linear-oblong, obtuse or emargiuate, mucronate ; stipules sub- 
 ulate and simple or semi-sagittate, small ; peduncle about 2-flowered, at 
 iirst much shorter than the leaves: flowers small, rarely solitary, pale r 
 blue at the tip; calyx hairy, teeth subulate, shorter than the tube; 
 legume f long, 3" wide, saber-shaped, glabrous, 5-6-seeded ; seeds com- 
 pressed, dark brown. Canon City, Brandegee. Golden City, Greene. 
 
 LATHYRUS ORNATUS, Nutt. Erect, glabrous, often glaucous ; stem, 
 6'-l high, sometimes branched, quadrangular ; leaflets 3-4 pairs, 
 lanceolate-linear, acute, mucronate, rigid and strongly veined, tendrils 
 scarcely any ; stipules linear-lanceolate and slender, semi-sagittate, en- 
 tire ; peduncles about 4-flowered, longer than the leaves ; flowers large, 
 purple, V long, very showy calyx- teeth subulate, slightly unequal, 
 rather shorter than the tube ; pod smooth, flat, acuminate at each end* 
 Hall & Harbour, 109. On the plains. 
 
 LATHYRUS LINEARIS, Nutt. Nearly glabrous, low ; stem decumbent,, 
 slender, angled; leaves nearly sessile; leaflets 5-6 pairs, narrowly- 
 linear, 8" 12" long, y'\." wide, mostly obtuse, apiculate, rigid .; tendril 
 short, simple or bifid ; stipules small, lanceolate, semi-sagittate, laciniate 
 with 2-5 very sharp, slender teeth ; peduncles 3-4-flowered, shorter than 
 the leaves ; flowers rather large, pale-purple ; segments of the calyx 
 triangular, shorter than the tubes ; legume attenuate at each end. Hall 
 & Harbour , 110. Near Denver, Dr. Smith. 
 
 LATHYRUS POLYMORPHUS, Kutt. Mostly glabrous; stem erect, a 
 little woody at the base, much branched, a little quadrangular, about 1 
 high; leaflets 2-5 pairs, elliptical-lanceolate, somewhat glaucous, rigid, 
 strongly veined, petioles terminated by a small bristle ; stipules lanceolate, 
 subfalcate, semi-sagittate at base ; peduncles 3-5-flowered, rather shorter 
 than the leaves ; flowers large, purple ; segments of the calyx broadly 
 or narrowly subulate, somewhat unequal, shorter than the tube; legume 
 large, glabrous. Hall & Harbour, 111. Sierra Madre Eange, Coulter. 
 
 LATHYRUS PUBESCENS, Nutt. (?) (L. venosus, Muhl., var. d.f Torr. 
 & Gr. Fl.N.Am.Z, p. 174. " Smaller, finely pubescent ; leaflets 3-5 pairs, 
 ovate-elliptical, smaller; stipules linear-lanceolate ; peduncles 5-7-tiow- 
 ered.") A. Lathy r us collected by Mr. Brandegee, on Newlan Creek, S. 
 Colorado, June 13, 1873, accords in the main with the variety or species 
 described above. Its characters are: Erect, l-2 high, softly and 
 finely pubescent throughout; leaflets 3-5 pairs, ovate, mucronate, 
 strongly veined; tendrils simple or bifid; stipules semi-sagittate, much 
 smaller than the leaflets; peduncles shorter than the leaves, and bear- 
 ing 2 rather small, white flowers. Legumes not seen. 
 
 LATHYRUS PALUSTRIS, L. Gratfs Manual, p, 139. Hall & Harbour, 
 112. Plains of the Platte, Coulter. Canon City, Brandegee. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 33 
 
 HOFFM ANSEGGiA 1 JAMES!!, T. & G. Fl. N. Am.} p. 393. Canescently- 
 pubescent ;. low, much branched from a shrubby base; stipul s .subu- 
 late, entire; pinnae 5, abruptly 10-16 foliolate; leaflets oval, obtuse at 
 both ends, nearly glabrous above ; racemes elongated, opposite the 
 leaves ; flowers nodding or reflexed, rather large ; calyx a little oblique, 
 the four upper segments lanceolate, acute, all meuibranaceous, at length 
 deciduous from the persistent base ; petals not glandular at the base, 
 the upper one smallest, marked with reddish spots; filaments declined, 
 hairy below, all fertile ; style subulate, dilated above and somewhat 
 gibbous at the apex; legumes about 1' long, broadly oblong, more or 
 less lunate, scabrous, flat, 2-3 seeded, sprinkled, as well as the leaves, 
 calyx, and petals, with sessile black glands. On the plains of Eastern 
 Colorado, Dr. Bell, 
 
 HOFFMANSEGGIA DREPANQCARPA, Gr. PI. Wright, 1, p. 58. Mi- 
 
 iiutely cinereous-puberuleut, wholly destitute of glands ; stems nu- 
 merous, l'-8' high, springing from a thick, ligneous root 6'- 8' deep; 
 stipules and bracts ovate-acute, caducous 1 ; pinnae 3-5 pairs, besides 
 the terminal one ; leaflets 7-10 pairs, about 3" long, crowded, subfal- 
 cate, nerveless ; racemes loose-flowered, elongated, on long, slender, 
 axillary peduncles; calyx 3" long, persistent, its divisions oblong-lan- 
 ceolate, obtuse or acutish ; petals yellow, a little longer than tbe calyx, 
 broadly obovate, very obtuse, nearly alike, without claws, naked and 
 glabrous ; filaments equal, antlieriferous, villous-barbate below the 
 middle ; ovary smooth ; pod broad-linear or oblong, very obtuse at each 
 end, strongly falcate, flat, li'-U' long, following the strong curvature, 
 3"-o f/ wide, of exactly the same width throughout, glabrous or minutely 
 puberulent under a lens, 9-10-seeded ; valves chartaceous, finely reticu- 
 lated, transversely impressed between theseeds. Canon City. Brandeyee. 
 
 CASSIA CILUI.ECRISTA, L. Xear Denver, Porter. 
 
 SCHRASKIA USCIXATA, Willd. On the plains, Porter. 
 
 ROSACE/E. 
 
 PRUNUS AMERICANA, Marsh. Near Denver, Dr. Smith. 
 
 PRUXUS CHICASA, MX. ? Canon City, Brandegee . 
 
 PRUNUS PEXXSYLVAXICA, L. Hall & Harbour, 148 : Porter. 
 
 PRUNUS YIRGIXIAXA, L. Hall & Harbour ; Brandegee ; B. H. Smith. 
 South Park and Mountain of the Holy Cross, Coulter. 
 
 SPIRJEA OPULIFOLIA, L. Meehan. Platte River, Coulter. 
 
 Var. PARYIFOLIA, Gr. Much smaller in all its parts. Hall & Har- 
 bour, 150; Brandegee. 
 
 SPIR^A DUUOSA, Xutt. (S. arucfolia, Smith, var. discolor, T. & G.) A 
 branching shrub, 2 -5 high; leaves broadly ovate, cuneate and 
 petioled, obtuse, sublobate and dentate, scarcely mucronate, paler and 
 sericeous beneath, smoother or nearly glabrous above, 6"-ll!" long : 
 flowers numerous, in more or less branched terminal panicles; branches 
 
 1 HOFFMAXSKGGIA, Ciiv. Sepals 5, united into a short, obcouic base, somewhat 
 equal. Petals 5, obovate, on short claws, somewhat unequal, spreading, the upper one 
 concave, one or more of them often glandular at base. Stamens 10 ; filaments i: 
 hairy or glandular, and thickened or dilated towards the base, nearly equal : antlu-i's 
 oval, nearly uniform. Style as long as tin- stamens, somewhat thickened towards ihe 
 apex. Legume oblong or linear, often falcate, compressed, dry, ->-valved. ^-10-serdt.-<l. 
 Low, perennial herbs, or suffrutesceut plants, often dotted with blaek glands. 1 .. 
 abruptly or unequally bipiimate. Racemes opposite the leaves ; flowers yellow. Glands 
 either sessile or pedicellate. T. f G. FL X. Am. 
 
 3 F C 
 
34 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 and calyx tomentose-pubescent ; calyx-segments ovate, spreading; car- 
 pels hirsute. Abundant in mountain ravines at middle elevations. 
 Hall & Harbour, 149 ; Parry; Canby ; B. H. Smith ; Meehan. Ute Pass, 
 Coulter. 
 
 EUBUS NUTKANUS, Mo. Bare, Parry. Near Long's Peak, Coulter. 
 
 EUBUS DELICIOSUS, Torr. Ann. N. T. Lye., 2, p. 196. Shrub, 3-4 
 high, branched ; branches, young leaves and calyx tomeutose-pubes- 
 cenfc or puberulent, not glandular; leaves reniforni-orbicuJar, rugose, 
 lJ'-2' in diameter, more or less 3-5 lobed, finely serrate-toothed; 
 stipules lanceolate, scarious, persistent; peduncle 1-7 flowered ; flowers 
 2' in diameter; sepals oval-oblong, with a dilated acurnination, shorter 
 than the oblong, white petals; fruit large, smooth, purplish, flavor not 
 agreeable to the human palate, but prized by bears. Hall & Harbour, 
 103 ; Parry, 210. Chiann Canon and Glen Eyrie, Porter. Clear Creek 
 Canon, Coulter. 
 
 EUBUS TRIFLORUS, Eichards. Hall & Harbour, 164. Bear Creek, 
 Coulter. 
 
 EUBUS STRIGOSUS, Michx. Near Denver, Dr. Smith. Chiauu Canon, 
 Porter. 
 
 PURSHIA 1 TRIDENTATA, DO. Shrub, 2-4 Q high; stipules minute; 
 leaves 3' '-12" long ; calyx-lobes ovate,, obtuse; petals obovate, exceed- 
 ing the calyx, 3"-5" long; fruit 6 7/ long, tardily dehiscent, 2-valved. Rare. 
 Parry; Meehan. Mountain of the Holy Cross, Coulter. 
 
 CERCOCARPUS 2 PARVIFOLIUS, Nutt. Shrub 2-10 Q high, branching 
 from the ground; leaves 6"-8" long,, cuneiform-obovate, silky-pubes- 
 cent or nearly glabrous above, toineutose-canescent beneath, serrately- 
 toothed towards the apex, strongly nerved ; flowers solitary or 2-4 
 together on slender pedicels ; calyx-Jube becoming y in length ; tail ot 
 the fruit 4" long, densely plumose. Hall & Harbour, 165 ; Dr. Smith ; 
 B. H. Smith* At the base of the foot-hills and extending into the mount- 
 ains, Porter. 
 
 AGRIMONIA EUPATORIA, L. Colorado Springs, Eed field. 
 
 DRYAS OOTOPETALA, L. Low, suffruteseeut ; leaves oblong-ovate, 
 coarsely crenate-toothed, obtuse at each end, clothed with a white to- 
 rn entum, beneath, the veins prominent, the margins revolute; stipules 
 aduate to the petiole; peduncles terminal, 1-flowered ; sepals linear; 
 flowers white or yellowish. Alpine. Hall & Harbour, 153 ; Hoopes. 
 
 1 PURSHIA, DO. Calyx persistent, tubular- infundibuliform, imbricately 5 -lobed. 
 Petals white, unguiculate. Stamens 10-25, in one series, with free filiform filaments 
 and large anthers. Carpels 1-2, free ; style short, curved, persistent, stigmatose at the 
 top and on one side ; ovule solitary, erect. Fruit coriaceous, ovate-oblong, pubescent, 
 sessile, exceeding the calyx. Seed with a membranous double testa, the two coatings 
 separated from one another by a layer of deep purple, intensely bitter, granular matter ; 
 cotyledons flat, obovate ; radicle short, inferior. A diffusely-branched, leafy shrub, 
 tomentose and somewhat glandular-pubescent upon the leaves, calyx, and fruit ; leaves 
 small, alternate and fascicled, sub-cuneiform, 3-cleft, the lobes short linear with revo- 
 lute margins, canescent beneath ; flowers yellow, subsessile, solitary, axillary and ter- 
 minal. Watson in Cl. King's Hep., Vol. V. 
 
 - CERCOCARPUS, H. B. K. Calyx-tube persistent, cylindrical, long and pedicelliform, 
 terete ; lobes of the hemispheric deciduous limb 5, small, valvate. Petals none. Sta- 
 mens 15-25, in 2-3 series, seated on the limb of the calyx,, with short free incurved 
 filaments, and anthers.ofteu pubescent. Ovary solitary, with a single sub-erect ovule ; 
 style filiform, villous.. Achenium linear-oblong, coriaceous, included in the calyx, cau- 
 date with the persistent long plumose style ; seed linear, with a membranous testa, 
 elongated cotyledons, aaid inferior radicle. Shrubs or trees, with alternate simple 
 leaves and axillary or terminal flowers. Benfh. $ Hook. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 35 
 
 GEUM MACROPHYLLUIM, "Wilkl. Gray's Manual, p. 152. Western's 
 Pass, Coulter. Twin Lakes, Porter. 
 
 GEU3I STRICTUM, Ait. Colorado Springs, Red field. 
 
 GEUM RIVALE, L. Hall <k Harbour ; Parry. Mountains west of 
 Denver, Greene. 
 
 GEUM TRIFLORUM, Pursh. Hall & Harbour, 152 ; B. H. Smith. Twin 
 Lakes and South Park, Porter. Near Long's Peak, Coulter. 
 
 GEUM liossii, Serin ge. Scape 1-flowered, 3'-S' high, slightly pu- 
 bescent above, somewhat 2-3-leaved ; radical leaves iuterraptedly-pin- 
 nate, rather glabrous, minutely ciliate ; leaflets ovate or cuneiform, 2-3- 
 lobed, incised or entire; flowers erect; calyx-lobes ovate, spreading, 
 shorter than the roundish, yellow petals ; carpels in a sessile head, mi- 
 nutely hirsute ; styles persistent, glabrous, not exserted in fruit. Alpine. 
 Hall d: Harbour, 156. Gray's Peak, Dr. 8m ith ; Canby. James's Peak 
 and the Sierra Madre Range, Coulter; Redfield. 
 
 CHAM.ERHODOS ] ERECTA, Buuge. Pilose-pubescent, glandular ; stem 
 slender, ii'-l high, paniculately branched above ; radical leaves rosu- 
 late, ternately or biternately many-cleft, segments very narrow, obtuse, 
 the upper cauline ones 3-5 cleft; petals white, longer than the calyx ; 
 ovaries 5-20. Hall & Harbour , 402; Canby; Porter. South Park, 
 Coulter. 
 
 FRAGARIA VESCA, L. Coulter. Canon City, Brandegee. 
 
 FRAGARIA VIRGIXIAXA, Ehrh., var. ILLINOIE:XSIS, Gr. Denver, Coul- 
 ter ; Dr. Smith. 
 
 FALLUGIA 2 PARADOXA, Torr. Emory Rep., t. 2. (Sierersia paradoxa, 
 Don.) Shrub l-2 high, very much branched, with a white and shining 
 bark : branchlets minutely pilose ; leaves alternate, cuueate or obovate 
 in outline, hirsute, 3-5 parted at the summit, 6" long, divisions linear, 
 obtuse; flowers terminal on the more or less elongated branchlets, sub- 
 corymbose; corolla about 9 // -12 // in diameter, white; achenia numer- 
 ous, hairy, with long, finely plumose tails -3' long. Canon City, Bran- 
 degee. Webster Canon, Redfield. Pueblo County, Greene. 
 
 SIBBALDIA PROOU3IBENS, L. (Potent ilia procumbens, Clairv.) Gratfs 
 Manual, p. 153. Hall & Harbour, 151. Saugre de Cristo Pass, Brandegte. 
 Sierra Madre Range at 11,000 feet altitude, Coulter. 
 
 POTENTILLA ARGUTA, Pursh. Watson's Revision, Proc. Am. Acad. 
 t\8, p. 551. Gray^s Manual, p. 154. Porter; Brandcyee. Plains of the 
 Platte, Coulter. A lower and more slender form, G / -12 / high, smaller in 
 
 1 CHAM.ERHODOS, Bunge. Calyx campanulate, deeply 5-cleft, ebracteolate ; the base 
 lined with a membranous disk, which i.s very densely bearded at the margin. Petals 
 5, obovate. Stamens 5, opposite the petals : and inserted with them into the sinuses 
 of the calyx above the disk ; filaments subulate, short, persistent. Acheuia 5-1U or 
 more ; styles arising near the base of the ovaries, subulate. Receptacle conical, villous. 
 St-cd ascending, nearly orthotropous. Eadicle superior. Small, erect and branching 
 glandular-pubescent herbs ; perennial or biennial. Leaves many-cleft ; the segments 
 linear. Inrioreseiice dichotoniously cymose. Petals white or purplish. T. $- G. FL 
 JV. Am. 
 
 - FALLUGIA, Endl., Gen. PL Calyx with a very short-turbinate tube and spreading 
 limb, 5-cleft, very minutely 5-bracteolate, valvate in aestivation, persistent. Petals 5, 
 inserted on the calyx, alternate with its lobes and nearly as long, obovate. Stamens 
 very many, inserted with the petals ; filaments free ; anthers 2-celled, longitudinally 
 dehiscent. Ovaries very many, sessile in the bottom of the calyx, free, 1-celled. with 
 a single ovule ascending. Styles terminal, continuous, filiform ; stigmas papillose. 
 Achenia numerous, included in the tube of the calyx, aristate with the very long ex- 
 serted, bearded, plumose styles. Seed ascending : radicle inferior. 
 
36 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 all its parts, with 11 leaflets and bright yellow flowers, from Ute Pass, 
 Porter. Gray's Peak, Dr. Smith. Saint Vrain Canon, Coulter. 
 
 POTENTILLA GLANDULOSA, Lincll., (P. fissa, Kutt.) WaUorts Rev., I. c., 
 p. 552. More slender and branched than the former, l-2 high, less 
 pubescent; leaflets 5-9, V long or less; cyme paiiicled with elongated 
 branches and more slender pedicels; flowers often smaller; calyx less 
 tomentose; bractlets linear; petals yellow, sometimes white; stamens 
 20-25. Colorado, fide Watson, I c. 
 
 POTENTILLA NoRVEGiCA, L. Watson's Rev.. 1. c., p. 552. Gray's Man- 
 ual, p. 154. Denver, Dr. Smith; B. II. Smith.' Caiiou City, Brandcaee. 
 Monument Park, Coulter. 
 
 POTENTILLA RIVALIS, Nutt. Watson's Rev., I c., p. 552. More slender 
 than the former, diffusely branched even from the base; pubescence 
 softly villous; stipules lanceolate to ovate; leaves pinnate with 2 pairs 
 of closely approximate leaflets, or a single pair and the terminal leaflet 
 3-parted ; the upper leaves ternate; leaflets ovate or oblong-cuneate or 
 lanceolate, I'-IJ 7 long, more or less incised-serrate; cymes loose, less 
 leafy, with slender pedicels; bractlets and sepals equal, lJ"-3" long; 
 petals minute; stamens 10-20; achenia usually smooth; receptacle short. 
 
 Var. MILLEGRANA, Watson. (P. miUegrana, Eng.) . Leaves all ter- 
 nate; steins erect or weak and ascending; achenia often small and light- 
 colored. Colorado, fide Watson in King's Report. 
 
 POTENTILLA PENNSYLVANIA, L., var. STRIGOSA, Pursh. Watson's 
 Rer., I. c., p. 554. Low, 6'-15' high ; stems erect, leafy, rather stout ; leaves 
 mostly tomentose on both surfaces, paler beneath, deeply pectinate- 
 divided or pimiatind, segments linear, entire, with revolute margins; 
 stipules laciniate. Hall & Harbour, 162; Porter. Canon City, Brandegee. 
 Horse Shoe Mountain near Fairplay, Coulter. 
 
 POTENTILLA HIPPIANA, Lehm. (P. Pennsylvania, L., var. Hlppiana, 
 T. & G. Fl. N. Am.) Watson's Rev., 1. c., p. 555. Densely white tomentose 
 and silky throughout; the upper surface of the leaves a little darker; 
 stems ascending, l -!^ high, slender, branching above into a diffuse 
 cyme; stipules usually entire; leaves pinnate, occasionally digitate; 
 leaflets 5-11, cuneate-oblong, l'-2' long, obtuse, incisely-toothed, at 
 least towards the apex, margins not revolute; pedicels slender; bract- 
 lets narrow; petals 2.J"-3J" long, exceeding the calyx; styles filiform, not 
 glandular at base, terminal; carpels 10-30. Hall & Harbour, 158. Near 
 Denver, Dr. Smith; Canby. Colorado Springs, Porter. Canon City, 
 Brandegee. Ute Pass and Twin Lakes, Coulter. 
 
 POTENTILLA EFFUSA, Dougl. Watson's Rev., I. c., p. 555. Canescently 
 tomeutose with scattered villous hairs; stems ascending, diffusely 
 branched above, 4 / -12 / high ; stipules lanceolate, entire or incised ; 
 leaflets 5-11, interruptedly pinnate, the alternate ones often smaller, 
 c-uneate-oblong, coarsely incised-serrate or dentate, the smaller leaflets 
 3-5 toothed ; pedicels slender ; sepals and the much smaller bractlets 
 acuminate, 2 // -3 // long, equaling or exceeding the obcordate petals ; 
 carpels 10. South Park, Porter. 
 
 POTENTILLA PLATTENSIS, Nutt. Watson's Rev., I. c., p. 556. Clothed 
 with a minute appressed pubescence; stems 6' high, weak, decumbent; 
 radical leaves pinnately 7-13 foliolate, cauline 3-5 foliolate: leaflets 
 cuneiform, deeply pinnatind-incised; the segments 3-7, oblong or 
 linear; stipules large, broadly ovate or lanceolate, entire, panicle few- 
 flowered; pedicels slender, elongated; petals obcordate, '2" -3" long, 
 a little longer than the acuminate calyx-segments. Common in wet 
 
SYNOPSIS OF THE FLORA OF COLORADO. 37 
 
 grounds. Hall & Harbour 161. South Park, Porter. Wet Mountain 
 Yiil ley; Brandegee. 
 
 POTENTILLA DISJECTA, Pursh. (P. diver sifolia, Lehm.) Watson's Rev., 
 L <?., p. 556. Low, alpine, more or less silky- villous with somewhat spread- 
 ing hairs, or nearly glabrous; stems decumbent or ascending, 3'-12' 
 long; stipules ovate or oblong -lanceolate, entire; leaflets 5-7, or 
 rarely but 3, often glaucous, closely pinnate, or as frequently digi- 
 tate, the upper one V long or less, cuneate- oblong, iueisely pinnatitid 
 or sen ate, the lowest often but trifid, the segments acute or acutish, and 
 more or less tufted with white hairs; flowers few, 011 slender pedicels, in 
 an open cyme; calyx more or less villous with spreading hairs, the bract- 
 lets short, the lanceolate sepals shorter than the petals, which are 2"- 
 4" long, obovate and retuse or obcordate; receptacle very villous; ^car- 
 pels 10-20, or more. Mountains near Denver, and Clear Creek Canon, 
 Coulter. Sangre de Cristo Pass, Brandegee. Gray's Peak, Dr. Smith. 
 
 TAB. GLAUCOPHYLLA, Lehin. Glaucous-green ; leaves digitate, nearly 
 glabrous on both sides; leaflets silky on the margin, with unequal seg- 
 ments. Parry, 219; Yasey. 
 
 POTENTILLA GTRACILIS, Dougl. Watson's Rev., L c.< p. 557. Villous and 
 more or less tomentose; stems 2-3 high; stipules ovate or lanceo- 
 late, entire or subiucised; leaflets mostly 7, sometimes 5, very rarely 
 but 3, euueate-oblong, obtuse, incisely serrate or pinnatifid, tomentose 
 beneath, green above and subvillous or appressed-silky, i'-2-J' long; 
 flowers in a loose subfastigiate cyme, the pedicels at length elongated 
 and slender; calyx with the narrow bractlets shorter than the broad 
 acute or lanceolate sepals; petals broadly obcordate, 3"-" long, a 
 little exceeding the calyx; carpels very numerous, (40 or more.) Gray's 
 Peak, Dr. Smith. 
 
 VAR. RIGIDA, Watson. (P. rigida, JSTutt., not Wall. P. Xuttallii, Lehm.) 
 A mostly stout and tall form, villous* but without tomeutum ; the cyme 
 loose or crowded; the leaves often large, 3'-4' long or more, and prom- 
 inently veined beneath. Hall & Harbour, 1(52 in part and 158 in part. 
 
 POTENTILLA HUMIFUSA, JSTutt. (P. concinna, Rich.) Watson's Rev., L c., 
 p. 558. Densely white-tomentose and silky -villous; stems decumbent, 
 2'-4' long, slender; leaflets 5, cuueate-obloug, 6"-9" long, green and ap- 
 pressed-silky above, only the rounded or truncate apex serrate with 
 3-5 teeth; flowers 3-5, on slender pedicels; bractlets narrow, shorter 
 than the acute sepals; petals 2 // -3 // long, obcordate, exceeding the 
 calyx; carpels 15-20. Subalpine. Hall & Harbour, 157. Marsh near 
 Long's Peak, Coulter. 
 
 POTENTILLA NIVEA, L. Watson's Rev., I. c..p. 558. Pubescence silky- 
 villous, often abundant, densely white-tomentose on the under side of 
 the leaves and sometimes upon the calyx; stems 2'-12 / high; leaflets 
 cuneate-obovate or oblong, 3"-8" long, coarsely iucised-serrate or pin- 
 natifld, the terminal one sessile or petiolulate; flowers few or solitary, 
 on slender pedicels; bractlets acute or acutish, shorter than the sepals; 
 petals 2 // -4 // long; carpels few or many. Parry, 214 and 215; Vasey. 
 
 POTENTILLA GRAYI, Watson, in Rev. I. c., p. 560. Pubescence scanty, 
 villous; stems slender, 3'-6' high, 3-6 flowered; stipules ovate or ob- 
 long, entire; leaflets very broad and suborbicular, long, the trun- 
 cate or rounded apex 5-7-toothed, the middle leaflet long-petiolulate ; 
 sepals acute, the bractlets but half as long and obtusish; petals 2"- 
 3" long, orbicular, retuse, exceeding the calyx; carpels 15-20. Gray's 
 Peak, Dr. Gray. 
 
38 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 POTENTILLA FRUTicosA, L. Very common along the foot-bills and 
 among the mountains. Hall & Harbour, 155. Near Denver, B. H. 
 Smith; Median. South Park and Sierra Madre Eange, Coulter. 
 
 POTENTILLA ANSERLNA, L. Common everywhere on the plains and 
 in the mountains. Denver, Dr. Smith. Colorado Springs, Porter. Canon 
 City, Brandegee. South Park, Coulter. 
 
 EOSA -BLAND A, Ait. Common everywhere along streams in the foot- 
 hills. Dr. Smith; Meehan. Porter ; Brandegee; Coulter. 
 
 EOSA ARKANSANA, Porter (n. sp.) Stein stout, erect, leafy, 1 high, 
 glabrous and glaucous, armed with weak, deciduous, bristly prickles ; 
 leaflets 9-11, ovate and oblong-ovate, 1 'or more in length, acute or obtuse, 
 glabrous, sharply serrate; midrib and long stipules somewhat prickly 
 and minutely glandular; flowers numerous, terminal, corymbed, on 
 peduncles about I' long; fruit globose, smooth, glaucous; calyx-seg- 
 ments ovate, reflexed in fruit, with terminal and sometimes lateral 
 appendages, more or less glandular and tomentose pubescent on the 
 margins; petals broadly obcordate or emarginate, longer than the calyx- 
 segments, rose-color^ flowers 2" in diameter. This rose may possibly be 
 an extreme form of H. blanda, but it differs in so many points that I have 
 ventured to describe it as new. Banks of the Arkansas near Canon 
 City, Brandegee. Eaton Mountains, Dr. Bell. Texas, Wright. 
 
 EOSA FRAXINIFOLIA, Bork. Eesembles E. blanda. Flowers large, 
 3' in diameter; fruit larger, 6' to h' in diameter ; 2 to 3 higb, growing 
 solitary on dry ridges. In the mountains, Hon. John Scott. 
 
 PYRUS SAMBITCIFOLIA, Cham. & Schlecht. Meehan. 
 
 AMELANCHIER CANADENSIS, T. & G., var. ALNIFOLIA, T. & G. 
 Mountain of the Holy Cross, Coulter. 
 
 SAX1FRAGACE.E. 
 
 SAXIFRAGA C^SPITOSA, L. Perennial, dwarf, crespitose ; stems, l'-2' 
 high ; leaves glandular- pubescent, 3-5-eleft, upper linear and entire, 
 segments broadly-linear and obtuse ; flowering stems with a few scat- 
 tered leaves, glandular, 1-4-flowered; petals white, obovate. 3-nerved, 
 scarcely longer or twice the length of the calyx. Alpine. Hall & Har- 
 bour ; Parry. 
 
 SAXIFRAGA RivuLARis, L. "Eocky Mountains of Colorado," Watson 
 in Kintfs Rep., vol. 5, p. 93. 
 
 SAXIFRAGA ADSCENDENS, L. (S. controversa, Sternb.) Annual, glan- 
 dular-pubescent; stems r-3-higb; erect, leafy; leaves cuneate-ovate, 
 3-5 toothed at the apex, the earlier spatulate and entire, radical ones 
 crowded; branchlets 3-flowered; flowers pinkish or yellowish-white; 
 calyx-lobes ovate, obtuse, shorter than the petals ; pedicels bibracteate, 
 about equaling the fruit. " Alpine region," Hall & Harbour, 196. 
 
 SAXIFRAGA CERNUA, L. Annual, glabrate or glandular-pubescent; 
 steins granulate at base, leafy, weak, simple or branching, 2'-5' high, 
 lower leaves reniform, broadly toothed or lobed, the upper ones bearing 
 little bulbs in their axils; flowers often solitary, terminal, pendulous ; 
 sepals oblong or ovate, nearly distinct; petals obovate-obloug or obovate 
 and retuse, white or cream-color, longer than the calyx; styles imperfect 
 or deformed. Alpine. Mount Lincoln at 12,500 feet altitude, Coulter. 
 Meehan. Saugre de Cristo Pass, Brandegee. 
 
 SAXIFRAGA DEBILIS, Eng. Glabrous/ or very sparingly glandular 
 pubescent; stems weak, ascending, 2-4-flowered, 2'-4/ high ; radical 
 
SYNOPSIS OF THE FLORA OF COLORADO. 39 
 
 leaves small, crenately lobed, cauline ones 3-lobed or entire ; lobes of the 
 calyx ovate, obtusish, at length shorter than the tube ; petals ovate, 
 obtuse, twice longer than the calyx, white or pinkish; tube of the calyx 
 obconical, wholly adherent to the ovary; styles very short; stigina 
 capitate. Alpine. Hall & Harbour, 198. Sangre de Oristo Pass, Bran- 
 deyee. 
 
 SAXIFRAGA HIRCULTJS, L. Stem 1-6-flowered, leafy ; leaves lance- 
 olate, nerved, not ciliate ; pedicels and upper part of the stem more or 
 less hairy, not glandular ; sepals usually ciliate, obtuse, much shorter 
 than the obovate, many-nerved petals retiexed ; flowers very large, yellow ; 
 style very short; stigma spatulate, at first inflexed, at length divari- 
 cate. " South Park, in wet or swampy places." Hall & Harbour, 201 ; 
 Canby. 
 
 SAXIFRAGA SERPYLLIFOLIA, Pursh. Dwarf, csespitose, shoots creep- 
 ing; leaves rosulate, imbricated, somewhat reflexed, oblong-obovate, 
 thick, 3"-4" long, very smooth ; stem filiform, few-leaved, slightly glan- 
 dular pubescent, l'-2' high, 1-3-flowered ; calyx not adherent to the 
 ovary, the segments reflexed, obtuse, much shorter than the broadly- 
 obovatc, yellow, 3-nerved petals. Alpine. Hall & Harbour, 199. Gray's 
 Peak, Dr. Smith. Sangre de Oisto Pass, Brandegee. Gray's Peak at 
 12-1,300 feet, Redfield. 
 
 SAXIFRAGA FLAGELLARIS, TTilld. Glandular-pubescent ; stems sim- 
 ple, '-6' high, leafy, 1-5-flowered ; stolons from the axils of the radical 
 leaves long and filiform, naked and rooting at the ends; leaves obovate- 
 spatulate, ciliate, lower much crowded, the upper oblong or linear ; flow- 
 ers large, yellow, 3"-4" long ; sepals very glandular, united at the base 
 and slightly coherent with the ovary; petals persistent, 3"-4" long, 
 longer than the capsule. Alpine. Hall & Harbour, 200 ; Parry. Mount 
 Lincoln at 13,000 feet altitude, Coulter. 
 
 SAXIFRAGA BRONCHIALIS, L. Perennial ; stems ascending, slender, 
 producing short branchlets ; leaves linear, 4"-5" long, rather coriaceous, 
 finely ciliate, mucrouate-pointed, crowded below; flowers corymbose on 
 a long, slender, bracted peduncle, 3 / -8 / high ; sepals lanceolate or ovate, 
 obtuse or acutish; petals obovate-obloug, white, marked with numerous 
 purplish spots, much exceeding the sepals ; styles and stigmas con- 
 vergent during flowering. Eocky places. Hall & Harbour, 197 ; Parry ; 
 B. H. Smith- Canby ; Porter. Mount Lincoln at 10,000 feet altitude 
 and Twin Lakes, Coulter. 
 
 SAXIFRAGA PUXCTATA, L. (S.ccstivalis, Fisch.) Perennial, villous- 
 pubesceut or nearly glabrous ; leaves radical, l'-2' in diameter, long- 
 petioled, roundish, reniforni or orbicular, equally and deeply dentate, 
 the teeth mostly acute; scape slender, naked, 1-!^ high, the pe- 
 duncles and pedicels of the usually open panicle gfandular; bracts 
 small, linear; petals white, oval, or orbicular, obtuse, exceeding the ob- 
 tuse, ovate-oblong, reflexed sepals; filaments often petaloid and abor- 
 tive; ovaries distinct below the middle. Hall & Harbour, 207. Pike's 
 Peak, Canby. Gray's Peak, Dr. Smith. Mount Lincoln, at 12-1 -4,000 feet 
 altitude, and Mount La Plata, at 11,000 feet altitude, Coulter. 
 
 SAXIFRAGA STELLARIS, L., var. COMOSA, Willd. Mount Evans, at 
 13,000 feet altitude, Greene. 
 
 SAXIFRAGA NIVALIS, L. Perennial ; leaves all radical, ovate or obo- 
 vate, attenuate into a broad petiole, unequally crenate-dentate; scape 
 naked, 3 / -12 / high, capitately or sub-corymbosely several to many- 
 flowered; the half- adherent calyx erect, shorter than the oblong, obtuse. 
 
40 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 subunguiculate petals; capsules purple, divergent. Hall & Harbour* 
 193. South Park, Porter. Near Long's Peak and Westou's Pass, Coulter. 
 
 SAXIFRAGA INTEGRIFOLIA, Hook. Very viscidly-pubescent; leaves 
 all radical, ovate or oblong-obovate, very obtuse, entire or slightly sinuate- 
 eremite; scape elongated, l-3 high, paniculate at the apex, rather 
 narrow or sometimes expanded, bracteate; petals obovate, twice the 
 length of the glabrous, spreading, or at length reflexed, round-ovate, 
 obtuse segments of the calyx; stamens short, styles free. Sierra Madre 
 Kange, at 11,000 feet altitude, Coulter. 
 
 SAXIFRAGA JAMESII, Torr. Glandular-puberulent; stems 2 / -G / 
 high from a thick caudex, more or less leafy, 5-10 flowered; radical 
 leaves on rather long petioles, reuiform-cordate, smoothish, crenately- 
 toothed or lobed; cauline ones few, the uppermost bract-like, cuneiform : 
 raceme compound; flowers large; calyx-tubecainpanulate, cohering with 
 the base of the ovary, the segments triangular-ovate, rather acute, about 
 as long as the slender claw or the orbicular, purple petals; stamens 10. 
 Hall & Harbour, 203. In clefts of the rocks in Chiann ('anon, Porter. 
 Pike's Peak, Canby. 
 
 TELLIMA 1 PARVIFLORA, Hook. (lAtliopliragma, Nutt.) Boot more or 
 less granulate; stems 6'-15' high, scabrous hirsute, with 1-2 ten lately- 
 divided or lobed leaves; segments 3-cleft, 4-8 flowered, occasionally 
 bulb-bearing; leaves '-2' in diameter; pedicels sub erect, usually 
 shorter than the calyx, which is obcouic, elongating in fruit and densely 
 glandular-hirsute; petals white, much exserted, deeply 5-cleft, projecting 
 1"_3" beyond the calyx; ovary adnate above the middle; seeds oblong, 
 minutely" roughened. Hall & Harbour, 206. 
 
 MITELLA PENTANDRA, Hook. Leaves all radical, cordate, slightly 
 lobed, creuately-serrate; scape slender, 1-1J high, naked; calyx cam- 
 pauulate with spreading lobes, adherent to the middle of the ovary; 
 petals white, linear or filiform, deeply 3-cleft, longer than the calyx; 
 stamens 5, with very short filaments, alternate with the petals; stigma 
 entire; capsule opening prematurely. Hall & Harbour, 208; Parry. 
 Sierra Madre Kauge, at 11,500 feet altitude, Coulter. 
 
 CHRYSOSPLENIUM ALTERNIFOLIUM, L. Flowering stems erect ; leaves 
 alternate, reuiform-cordate, doubly crenate or somewhat lobed ; flowers 
 corymbose. Hall & Harbour, 576. 
 
 HEUCHERA BRACTEATA, Scringe. Small and nearly glabrous or 
 minutely puberulent ; scapes numerous from a thick, ligneous caudex, 
 leafless or bracted; radical leaves roundish-subcordate, about V in 
 diameter, incisely lobed, lobes short, crenately toothed, subciliate, teeth 
 setaceously mucronate; flowers crowded in a spicate, somewhat com- 
 pound raceme V to 1J' long; calyx campanulate, oblong, almost 5-cleft 
 to the middle, lobes spatulate-oblong ; petals attenuate, acute, scarcely 
 broader than the filaments; styles and stamens at length exserted; 
 thyrsus commonly more or less secund; flowers barely 2" in length. In 
 clefts of the rocks. Hall & Harbour, 205. Parry, 172; Dr. Smith; B. 
 H. Smith. On the road from Denver to Idaho Springs, Porter. 
 
 HEUCHERA PARVIFOLIA, Nutt. Scabrous-puberulent ; scape naked, 
 
 1 TELLIMA, Brown. Calyx campanulate, dilated, prolonged beyond the ovary and 
 adherent to it at base, 5-tootlied or cleft, valvate. Petal 5, entire or divided, inserted 
 on the throat of the calyx with the 10 small, included stamens. Ovary half-superior, 
 conical, 1-celled, with 2-3 parietal, many-ovuled placenta' ; styles 2-3, short. Capsule 
 wholly or half inferior, membranous, 2-3-valved, many-seeded. Erect, simple, pilose 
 or glandular herbs with petioled, rounded-cordate, lobed leaves and terminal racemes. 
 Bmili. and Hook. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 41 
 
 W-2 high; leaves roundish-cordate, crenately 5-7 lobed, at length 
 glabrous, ciliate, the lobes short and rounded with 1 or 2 crenatures, 
 minutely mucronate; panicle racemose, rather loose; bracts small, 
 laciniate, ciliate; flowers small; calyx adherent to the ovary, obconic 
 at base$ limb flat, dilated; petals minute, caducous; stamens shorter 
 than the lobes of the calyx; styles very short, conical; seeds mnricate 
 or hispid under a lens. Common in the mountains. Hall & Harbour, 
 -04; Parry, 174; B. H. Smith. Chiauu Canon, Porter. Brandegee. South 
 Park, Coulter. 
 
 HEUCHERA HALLIT, Gr. Miuuteh glandular-puberulent; scape 4 / -8 / 
 high, naked or with 1-3 minute, subulate bracts; thyrsus raceme like, 
 rather loosely 12-30 flowered ; bracts scarcely longer than the pedicels; 
 flowers white or pinkish, 3" long; calyx broadly-campanulate, 5-lobed, 
 lobes broad-ovate; petals narrowly spatulate, obtuse, exsert; stamens 
 and styles included. Leaves as in H. bracteata, considerably variable. 
 Hall <(' Harbour, rocks, on mountains of medium elevation. On the 
 Upper Arkansas, Porter. Grand Cation of the Arkansas, Brandegee. 
 
 PARXASSIA PARVIFLORA, DC. Hall tfc Harbour, 578. Wet Mountain 
 Valley, Brandegee. 
 
 PARNASSIA FIMBRIATA, Banks. Scape 6'-18' high; flowers I 7 in 
 diameter; radical leaves on very long petioles, biauriculate-reniform ; 
 rauliue one very small, cordate, sessile, above the middle of the slender 
 scape; petals fiinbriate at the base, somewhat uuguiculate, longer than 
 the calyx; sterile filaments 5-9 in each set, or reduced to a crenately- 
 toothed, broadly-cuiieate, fleshy, carinate scale. Hall & Harbour. 575. 
 In damp places in the Sierra "Madre Range at 10-12,000 feet altitude, 
 Coulter. 
 
 JA3IESIA 1 AMERICANA, T. & G. Cymes often longer than the leaves, 
 5-10-flowered ; petals white, 3" -5" long, glabrous or slightly hairy with- 
 in; calyx-lobes shorter than the petals, enlarged and foliacebus in fruit. 
 Hall ct Harbour j 568; Parry. Georgetown, I)r. Smith; Canby. Chiann 
 Canon and Glen Eyrie, Porter. James's Peak and Clear Creek Canon, 
 Co ulter; Redfield. 
 
 PHILADELPHIA MIOROPHYLLUS, Gr. PI. FendL, p. 54. Branches slen- 
 der, erect; leaves small, 6"-9" long, ovate-lanceolate or oblong, very 
 entire, obsoletely 3-nerved, shining above, pale, and minutely pilose be- 
 neath, narrowed at base into a very short petiole; flowers terminal, 1-3; 
 calyx 4-cleft, glabrous without, lobes ovate-lanceolate, toineutulose 
 within; styles connate to the apex, shorter than the stamens; stigmas 
 4, oblong; capsules snbglobose. Canon City, Brandegee. The speci- 
 mens received from Mr. Brandegee exhibit some of the characters of 
 P. serpyllifolhiSj Gr. (PL Wright, 1, p. 77.) The leaves are pubescent 
 above, some of them plainly 3-iierved and the lobes of the calyx silky- 
 pubescent without. But it is clearly distinguished by the size of the 
 leaves and the oblong stigmas. The hairs on the under side of the 
 leaves are appressed and covered with tubercles under the microscope, 
 
 1 JAMESIA, T. & G. Calyx-tube very short, turbinate, adnate to the base of the 
 ovary ; lobes triangular-ovate, sometimes bind. Petals 5, obovate, convolute. Stamens 
 10. the alternate ones shorter; filaments linear, flattened, acuminate. Ovary conical, 
 1-celled, with 3-5 parietal, many-ovuled placenta- : styles 3-5. equaling the stamens. 
 Capsule included, incompletely 3-5-celled. dehiscent between the persistent, diverging 
 styles. Seeds horizontal, ovate, shining. striate-reticulate, the embryo in the axis of 
 the fleshy albumen. A low, diffusely-branching shrub, 2-3 high; leaves opposite, 
 petioled, ovate, mucrouately serrate/canescent beneath, as well as on the petioles, 
 calyx, and branchlets, with a soft, hairy pubescence ; flowers cyniose, in terminal 
 panicles. Bcnth. and Hook* 
 
42 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 as Dr. Gray has observed in those of P. serpyllifolius. Webster Canon, 
 Redjield. 
 
 KIBES HIRTELLUM, Wx.Hall & Harbour, 187. Canon City, Brandegee. 
 Clear Creek Canon, Coulter. Ute Pass, Porter. 
 
 KIBES IRRIGKJUM, Dougl. Stems 6 high, branches red. narked or 
 prickly; subaxillary spines 3 or sometimes more, stout, rarely redexed; 
 leaves roundish, 5-lobed, I'-IJ' in diameter, cuneate, truncate or sub- 
 cordate at base, crenately-serfate, nearly glabrous, somewhat hairy be- 
 tween the veins beneath and somewhat ciliate ; peduncles slender and 
 usually elongated, 3-flowered, glabrous or minutely glandular-pubescent ; 
 the bracts somewhat gland ular-ciliate; calyx cylindrical and narrow 
 (with the ovary often J'long), glabrous, the segments linear-oblong, ex- 
 ceeding the tube, sometimes reflexed; petals short, oblong-spatulate, 
 purplish-white ; the stamens usually exceeding the calyx, but shorter 
 thau the deeply cleft style ; filaments and style hairy ; fruit rather large, 
 smooth, deep-purple, edible. Wilson's Creek, Brandegee. 
 
 KIBES LEPTANTHOT, Gr. PL FendL, p. 53. Shrub 2-4 high, 
 diffusely branched, without prickles; subaxillary spines solitary, stout, 
 rarely two or three; the dense, minute pubescence glandular or often 
 mixed with resinous dots, or the whole plant glabrous; leaves small, 
 4"-6" broad, numerous, 5-cleft, lobes incised ; peduncles short, deflexed ; 
 flowers 1-2, nearly sessile, yellow, 2"-4" long; bracts rounded, shorter 
 than the ovary; calyx tubular or somewhat campauulate, more or less 
 silky-pubescent, the lobes subspatulate, more or less reflexed, equaling 
 the tube and about twice longer than the stamens and petals; style 
 glabrous, undivided; stigmas 2; fruit unarmed, glabrous. -Canon City, 
 Brandegee. Webster Canon, Red field. 
 
 KIBES LACUSTRE, Poir. Hall & Harbour, 184. Westoii's Pass, Coulter. 
 
 KIBES PROSTRATUM, L' Her. Hall & Harbour. 
 
 KIBES CEREUM, Dougl. Diffusely branching shrub, 1 6 high? 
 unarmed; leaves roundish, J'-l' broad, mostly cordate, 3-5-lobed. iucise- 
 ly crenate, viscid-puberulent or nearly glabrous, resinous-dotted; 
 racemes nodding on short peduncles, crowded, 3-5-liowered; bracts ovate? 
 appressed to the nearly - sessile ovary; calyx tubular, 3 // -4 // long, 
 glandular, segments very short, recurved, pinkish-white; petals minute, 
 orbicular; stamens included ; style undivided; stigmas 2; fruit globose, 
 glandular, light red. Hall & Harbour, 180. Glen Eyrie, Porter. Canon 
 City, Brandegee. Clear Creek Canon, and common through the moun- 
 tains, Coulter. 
 
 KIBES FLORIDUM, L' Her. On the Platte near Denver, Dr. Smith. 
 
 KIBES AUREUM, Pursh. Shrub, neither prickly nor spiny, with long 
 slender drooping branches, glabrous; leaves convolute in vernation, 
 rather thick, 3-lobed, lobes divaricate, incisely few toothed, ciliate when 
 young; petioles and peduncles minutely puberulent; raceme many- 
 flowered, with foliaceous bracts exceeding the pedicels ; calyx tubular, 
 very slender, segments spreading, shorter than the tube, twice the length 
 of the petals, yellow ; style undivided ; fruit yellowish or black, gla- 
 brous, edible. Hall & Harbour, 188. Plains near Denver, May, Coulter. 
 Cultivated for the fragrance of its flowers, under the name of *" Missouri 
 Currant." 
 
 CRASSULACE.E. 
 
 SEDUM KHODIOLA, VG.Hall & Harbour, 191; Dr. Smith; Porter. 
 Mount Lincoln at 13,000 feet altitude, July, Coulter. Gray's Peak, Red- 
 field. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 43 
 
 SEBUM RHODAKTHUM, Gr. Sill. Jour. (N. S.) 33, p. 405. Stems nu- 
 merous, 6"-12" high from a thick root, erect simple, leaves flat, scattered, 
 glabrous, oblong or oblanceolate, entire, l'-2' long; corymb l'-2'loug, 
 terminal, simple; flowers large, 4 // -5 // , perfect, mostly tetramerous, more 
 than twice the length of the pedicels; sepals linear; petals rose-color 
 or nearly white, lanceolate, acuminate, twice exceeding the sepals and 
 a little longer than the stamens which are adnate to them below the 
 middle ; ovary straight ; styles filiform. On the banks of rivulets, alpine 
 and subalpine. Hall & Harbour, 189; Parry; Dr. Smith. Mount Lin- 
 coln at 13,000 feet altitude, Coulter. 
 
 SEDUM STENOPETALUM, Pursh. Glabrous ; stems 3'-6' high, erect, 
 several from a decumbent base, simple or somewhat branched; leaves 
 crowded on the barren shoots, fleshy, compressed, subulate, sessile, acute, 
 2"-4" long; flowers bright-yellow, nearly sessile, pentamerous, 3"-4" 
 long ; petals linear, lanceolate, acuminate, twice longer than the subu- 
 late sepals. Common everywhere at the base of the foothills and 
 through the mountains to 12,000 feet altitude. Hall & Harbour, 190; 
 Canby; Dr. Smith ; B. H. Smith; Meehan ; Porter; Coulter. 
 
 HA LOR A GET:. 
 
 HIPPURIS VULGARIS, L. Common, in streams,. Hall & Harbour, 
 13.!; Parry; Brandeyee. Clear Creek Caiion, Coulter. 
 
 ONAGRACEJE. 
 
 EPILOBIUM ALPINUM, L. Hall & Harbour, 167. Chicago Lakes at 
 12,000 feet altitude, Coulter. 
 
 EPILOBIUM TETRAGONUM, L. Stems erect, 6'-2 high, usually branch- 
 ing, 4-sided, nearly glabrous ; leaves opposite, oblong-lanceolate, denticu- 
 late, the middle ones more or less decurrent along the angles of the stem, 
 the lower slightly petioled; flowers small; petals emarginate ; stigma 
 clavate ; capsules pediceled, minutely pubescent. Dr. Smith; B. H. 
 Smith; Porter. Along the Platte and near Mount Lincoln at 10,000 feet 
 altitude, Coulter. 
 
 EPILOBIUM PALTJSTRE, L. Hall & Harbour, 166. 
 
 EPILOBIUM PANICULATUM, L. Stems 6'-3 high, glabrous or glandu- 
 lar-pubescent above, erect, slender, terete, dichotomous above; leaves 
 narrowly linear, obscurely serrulate, acute, attenuate at base, mostly 
 alternate and fascicled ; flowers few, l // -4 // long, light rose-color, ter- 
 minating the spreadi ngn'liforin and almost leafless branches; calyx-tube 
 infundibuliform, petals obcordate, nearly twice exceeding the calyx 
 lobes : capsule short, acute at each end, straight or a little curved, erect 
 or spreading. Hall cfc Harbour, 168. Mountains of Colorado, Canby. 
 
 EPILOBIUM ANGUSTIFOLIUM, Ij.Hall & Harbor, 170; Dr. Smith, 
 B. H. Smith. Ute Pass and Twin Lakes, Coulter. 
 
 EPILOBIUM LATIFOLIUM, L. Stem ascending, often branched, 9 / -lS / 
 high, glabrous or very minutely puberulent; leaves ovate or ovate- 
 lanceolate, sessile, entire or nearly so, rather thick and rigid, l'-l ' 
 long, the veins not apparent; flowers axillary and terminal, on short 
 pedicels; style somewhat erect, glabrous, shorter than the stamens. 
 Hall & Harbour, 1W; Parry. Twin Lakes, Coulter. 
 
44 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 | 
 
 GAYOPHYTUM 1 RAMOSissiMUM, T. & G. Steins 6'-18' high, becoming 
 very much branched ; flowers very minute; calyx-lobes lanceolnte- 
 oblong, equaling the rose-colored petals and exceeding the longer 
 stamens ; flowers '' long: capsules oblong, 3-5-seeded, 2 // -3" long, rather 
 shorter than the filiform, deflexed, pedicels. Hall & Harbour, 172. 
 Buffalo Peaks, Coulter. 
 
 GAYOPHYTUM RACEMOSUM, T. & G. Glabrous or nearly so; steins 
 6'-18' high, branched, branches elongated, mostly simple; leaves linear- 
 spatulate, short, 6"-12" long; flowers axillary throughout the branches; 
 segments of the calyx about the length of the petals; longer stamens 
 one-third shorter than the petals; capsule linear, 8"-10" long, tapering 
 at base into a very short pedicel or sessile, many-seeded. Hall & Har- 
 fcowr, 171 ; Parry; Brandegee ; Canby. Gray's Peak, Eedjield. 
 
 (ENOTHERA BIENNIS, L. Along the Platte and in Ute Pass, Coulter; 
 Porter. 
 
 (ENOTHERA PINNATIFIDA, Nutt. Annual, decumbent, pubescent or 
 puberulent ; stem low, branches sometimes 1 -2 long ; leaves deeply pin- 
 riatifid, with linear and acute segments, radical ones often nearly entire; 
 flowers axillary, large, 2 / -3 / in diameter ; segments of the calyx rather 
 shorter than the tube and much shorter than the broadly obcordate 
 petals ; style filiform, shorter than the petals, but exceeding the stamens ; 
 stigmas filiform, divaricate, as long as the slender anthers ; capsules 
 prismatic-cylindrical, striate-grooved, somewhat tapering towards the 
 apex, about I 7 long ; seeds 1-rowed in each cell, terete, ascending. Hall 
 & Harbour, 177 ; Brandegee. Clear Creek, Coulter. On the Platte near 
 Denver, Dr. Smith. Wet Mountain Valley, Redjield. 
 
 (ENOTHERA CORONOPIFOLTA, T. & G. Perennial, with horizontal 
 root-stocks ; stems simple, often numerous from a branching base, erect 
 or ascending, slender, cauescently puberulent, strigose or hispid ; basal 
 leaves linear-spatulate, the rest pectiuately piniuitiiid ; throat of the 
 calyx-tube densely villous; petals somewhat orbicular, entire, equaling 
 the stamens, shorter than the pistil, nearly white, turning red, \' long ; 
 capsule ovate or linear-oblong, tor ulose at base, sometimes attenuated 
 into a very short peduncle, sub-erect; seeds large, ovate, turgid, some- 
 what obtuse or obliquely truncate. Hall & Harbour, 178; Dr. Smith ; 
 B. H. Smith ; Canby ; Braudegee. Plains around Denver and Colorado 
 Springs, Porter. Plains of the Platte and Pleasant Park, Coulter. 
 
 (ENOTHERA ALBICAULIS, Nutt. Perennial, puberulent or hirsute; 
 stems usually l-3 high, erect or ascending, with a white, membran- 
 ous, shining bark; leaves very variable, linear or lanceolate, attenuate 
 at the base, entire or more or less dentate ; petals round-ovate, more or 
 less unguiculate, entire, exceeding the stamens and equaling the pistil, 
 often nearly white; capsule thickened at base, sessile, linear, divaricate, 
 often flexuous or deflexed; seeds rather small, linear-lanceolate, smooth. 
 Dr. Smith ; B. H. Smith ; Canby. Canon City, Brandegee. Plains near. 
 Denver and Pleasant Park, Coulter. Colorado Springs, Porter. 
 
 (ENOTHERA TRILOBA, Xutt. Biennial, acaulescent, nearly glabrous ; 
 
 1 GAYOPHYTUM, A. Juss. Calyx-tube not produced beyond the ovary, linear, sub- 
 terete; lobes 4, spreading, deciduous; petals 4, obovate, very shortly* unguiculate ; 
 stamens 8, or 4, alternate, with as many staminodia ; iilaivents short, filiform ; anthers 
 globose ; style rather short, with a capitate or clavate stigma ; capsule small, mem- 
 branous, linear, 2-celled, 4-valved, two opposite valves bearing a narrow dissepiment ; 
 seeds few-many, in a single series in each cell, ascending. Annual, slender, branching 
 herbs, with alternate, linear, entire, nerveless leaves and small axillary, solitary 
 flowers. Benth Hook. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 45 
 
 leaves runcinate-pinnatifid, petioled, segments linear-lanceolate, often 
 toothed; flowers large, sessile, 2'-3' in diameter, yellowish becoming 
 rose-color; calyx tube very long, filiform, dilated above; capsules oval 
 or obovate, I' in length, persistent and crowding at the base, cartilagi- 
 nous or somewhat woody, reticulated, 4- winged, apicolate or 4-toothed at 
 the apex ; seeds horizontal, angled, densely tuberculate. Hall & Har- 
 bour, 175. Sotith Park, Coulter. 
 
 (EXOTHERA CyESPiTOSA, Sfutt. (Watson's Rev. in Proc. Am. Ac., v. 8, 
 pp. 585 and 605. Including (E.montana and (E. maryinata, Xutt.; also (E. 
 eji-hnia,Gi\) A caulescent, or with a short, sub-erect stem, 2 / -6 / high , 
 more or less villous pubescent or nearly glabrous ; leaves petioled, lan- 
 ceolate, acute, variable in section, runciuate, lyrate, repandly-toothed or 
 nearly entire; calyx-tube elongated, 3'-5' long; petals large, l'-2' long, 
 obcordate, nearly white, becoming rose-color ; capsules sessile or upon 
 short peduncles, coriaceous, oblong, somewhat attenuate above, straight 
 or curved, sub 4-angled, more or less ribbed, with the ridges tuberculate 
 or smooth, dehiscence loculicidal ; seeds, two rows in each cell, nearly hori- 
 zontal, obovate, smooth, sulcate. Hall & Harbour, 173; Parry. Xorth 
 Park, Hay den. E. H. Smith. Xear Denver, Canby. Plains of the Platte, 
 Coulter. South Park, Porter. 
 
 A remarkably stout, caulescent form of this very variable species, 
 collected by Mr. Braudegee near Cafion City, corresponds very nearly 
 to (E. eximia, Gray, PL Fcndl., p. 45. The robust, ascending stems are 
 more than a span high and the capsules sessile, conical, I'-IJ' long, taper- 
 ing upward from a broad base, with 2 wing-crested ribs on each valve. 
 
 (EXOTHERA MISSOURIEXSIS, Sims. Stems low, simple, decumbent ; 
 leaves coriaceous, lanceolate, acute, tapering into a short petiole, ob- 
 scurely denticulate, somewhat canescent when young; flowers axillary, 
 very large, diurnal; tube of the calyx 4 / -7' in length, segments acu- 
 minate, often spotted with purple, much shorter than the tube, about 
 the length of the roundish, flabelliform, mucronulate petals ; corolla 
 4'-t> / in diameter; petals very broad, light-yellow, wjth orange veins; 
 capsule pediceled, very large, somewhat compressed, with 4 broad 
 wings, 2' in length and about the same in breadth including the wings, 
 without the wings 3" in diameter ; seeds large, the undulate crest con- 
 spicuous. Hall d: Harbour, 174. 
 
 (EXOTHERA HARTWEGII, Benth., var. LAVANDUL^FOLIA, Gr. Snffru- 
 ticose, low, hoary-canescent ; stems simple, decumbent, 6' long ; leaves 
 crowded, linear, or oblong-linear, entire, obtuse or acutish, somewhat 
 re volute ; tube of the calyx 1' long, tubular-infundibuliform, many times 
 longer than the ovary and the ovate lanceolate, slightly acuminate 
 segments; petals rhombic-ovate, crenulate, longer than the stamens; 
 stigma discoid ; capsule sessile, cylindrical, canescent; seeds in a double 
 series, horizontal. Canon City, Brandeyee. Bluffs at Pueblo, Greene. 
 
 (ExoTHERA CAXESCEXS, Torr. & Frem. Frem. 2d. Exp., p. 31 5. Gray 
 in PL FendL, p. 44. ((E. yuttulata, Hook.) Stems ascending, 6'-$' high, 
 branching, very leafy to the top; leaves minutely strigose-canesceiir. 
 6" long, oblong-lanceolate or linear, entire or obscurely toothed ; 
 calyx-tube slender, 9" long, purplish, thrice the length of the ovoid, 
 canescent ovary ; petals broadly obovate, entire, ' long, white, with 
 some of each flower conspicuously spotted or blotched with rose-purple ; 
 anthers linear ; divisions of the stigma linear, slender ; capsule slender, 
 cauescent, 3" long and almost as broad, turgid-ovate, apiculate, with 4 
 strongly carinate and almost winged angles, the intermediate ribs 
 
46 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 scarcely prominent 5 seeds numerous in each cell, obovate, with a 
 smooth and thin testa. Purgatory Biver, Dr. Bell. 
 
 (ENOTHERA SERRULATA, Nutt. Hall & Harbour, 179; B. H. Smith. 
 Plains of the Platte and Monument Park, Coulter. On the plains be- 
 tween Denver and Colorado Springs, Porter. 
 
 CENOTHERA BREVIFLORA, T. & G. ( (E. NuttalUi, T. & G.) Perennial, 
 acauleseeiit ; leaves petioled, 2 / -6 / long, lanceolate, acuminate, inter- 
 ruptedly pinnately-parted, the segments lanceolate, acuminate, tootbed 
 or entire; calyx-tube marcescent, much shorter than the leaves, filiform, 
 dilated at the summit, segments lanceolate, shorter than the obovate, 
 yellow petals, scarcely exceeding the style; stigma capitate, entire; 
 capsules large, sessile, submembranous, oblong and attenuate above, 
 sub-tetragonal and sulcate on the sides, very- many-seeded; seeds smooth, 
 somewhat ascending, terete, oblong, slightly reiiiforai, 2 series in each 
 cell. Hall & Harbour, 176. 
 
 STENOSIPHON l VIRGATUS, Spach. Spikes in fruit sometimes nearly 
 1 long ; bracts subulate, longer than the ovary, rather persistent ; calyx 
 pubescent, tube exceedingly slender, "-5" long ; petals rather large 
 in proportion ; ovary tomentose-pubescent. Parry ; Canby. 
 
 GAURA PARVIFLORA, Dougl. Stem tall, erect, more or less branched, 
 20.50 high, clothed, besides the long, soft-villous hairs, with a minute, 
 slightly glandular pubescence ; leaves ovate-lanceolate, l'-3' long, 
 acute or acuminate, repand-denticulate, clothed on both sides with a soft, 
 velvety pubescence; spikes virgate, dense, strict, in fruit often elongat- 
 ing 1" or more; bracts lanceolate-subulate; flowers very small, rose- 
 colored ; calyx-tube shorter than the glabrous ovary and longer than the 
 segments ; petals spatulate-oblong ; anthers oval, retuse, attached by 
 the middle; lobes of the stigma very short; fruit sessile, oblong-clavate, 
 4-nerved, obtusely angled above, 3"-" long. On the plains near Den- 
 ver, Dr. Smith. Hall & Harbour, 180 ; Parry, 181 ; Canby. Caiion 
 City, Red field. 
 
 GAURA COCCINEA, Nutt. Canescent, puberulent or glabrate ; stems 
 suffruticose and fastigiately branched from the base, G'-lii' high, very 
 leafy, ascending; leaves lanceolate, linear-oblong or linear, repand-den- 
 ticulate or entire, 6"-12" long, closely sessile; flowers in simple spikes 
 terminating the leafy branches, rose-color, turning to scarlet; bracts 
 linear, rather persistent, longer than the ovaries ; calyx-segments linear- 
 oblong, shorter than the narrow infundibuliform tube, as long as the 
 roundish, unguiculate petals ; fruit elliptical, sessile, short, terete, 1- 
 sided above. Hall & Harbour, 181; Dr. Smith; B. H. Smith; Canby. 
 Plains around Denver and Colorado Springs, Porter. Plains of the 
 Platte, Coulter. 
 
 ALPINA, L. Hall & Harbour. 
 
 LYTHRTJM ALATUM, Pursh. Plains near Denver, Dr. Smith. 
 
 1 STENOSIPHON, Spach. Tube of the calyx filiform or almost capillary, much prolonged 
 beyond the ovary, recurved or declined after flowering, at length deciduous ; the limb 
 4-parted, much shorter than the tube. Petals 4, unguiculate, unequal. Stamens 8, 
 erect, the alternate ones a little shorter ; filaments capillary ; anthers oblong, fixed by 
 the middle. Ovary oval, 1-celled, with 4 suspended ovules'; style erect, filiform, dila- 
 ted at the apex; stigma 4-lobed. Fruit (very small) coriaceous and indehiscent, ovate, 
 convex externally, flatfish within, about 8-ribbed, 1- seeded. A tall, perennial heib, 
 with virgate branches, and scattered linear-lanceolate, sessile, acute, nerveless, entire 
 leaves, gradually reduced to bracts. Flowers (white) sessile, crowded, in long and 
 strict, virgate spikes. T. $' (*. Fl. JN 7 . Am. 
 
SYNOPSIS OF THE FLORA OF COLORADO. ^ 47 
 
 L.OASACEJE. 
 
 MENTZELIA FUDA, T. & G. Eough with a minute, barbed pubes- 
 cence; stems l-3 high, white, often widely branching; leaves lan- 
 ceolate or oblong-lanceolate, sessile, toothed or piunatitid, with sharp or 
 obtuse spreading teeth, very rough ; flowers large, terminating the 
 branches, vespertine, bracteolate, (not bracteolate, T. & G.); petals 10, 
 lanceolate, tapering at the base, acute, yellowish-white with numerous 
 darker veins, I 7 to 1J 7 long; stamens very numerous, the exterior fila- 
 ments petaloid and often sterile, the others filiform, capsule-cylindrical, 
 I 7 or more long, 4" wide, 3-valved at the summit ; seeds numerous, ovoid, 
 with a broad, membranous wing. Hall & Harbour, 569; Dr. Smith ; 
 B. H. Smith. On the plains near Denver and Colorado Springs, Porter. 
 Canon City, Brandegee. Plains of the Platte, Coulter. 
 
 MENTZELIA ALBICAULIS, Dougl. Stem 6 7 -18 7 high, usually branch- 
 ing from the base, white and polished and nearly glabrous below, rather 
 weak ; leaves lanceolate, remote, more or less deeply pinuatifid, some- 
 times repaud or nearly entire, scabrous, sessile; flowers solitary or some- 
 what clustered, not bracteolate ; petals obovate, 2" long, light-yellow, 
 scarcely exceeding the short, subulate-lanceolate calyx-segments; fila- 
 ments io-30, subulate-filiform or occasionally somewhat dilated; capsules 
 cvlindric, narrow, elongated, attenuate at base, 6 77 to 9 7/ long, 1 7/ to 1 77 
 wide, minutely hispid ; seeds 20-40. Hall & Harbour, 571. ^ear 
 Denver, Canby. Canon City, Brandegee. Plains of the Platte, Coulter. 
 Frequent on the plains and among the foot-hills. 
 
 MENTZELIA MULTLFLORA, ]^utt. PL Gamb. in Jour. Proc. Acad. 
 Phil Feb. 1848, under Bartonia. Steins scabrous, pubescent, f-l 
 high, slender, corymbosely branched above, rough, pubescent or becom- 
 ing smooth and white with age; leaves lanceolate or narrowly lanceo- 
 late, sinuate-pinnatifid, attenuate below and sessile; flowers subtended 
 by 1 or 2 ovate or linear, entire bracts ; petals 10, deep or goldeii-yel- 
 low, oblong-oval, obtuse or acute, 6 /7 -9 /7 long, abruptly pointed, 
 much longer than the subulate calyx-segments; capsules cylindrical-ob- 
 long, about G /7 -8 /7 long, 3 /7 -4 77 wide, a little longer than the calyx- 
 segments ; seeds in a double series, winged. Hall & Harbour, 570; 
 Canby. AVet Mountain Valley, Brandegee. 
 
 MEXTZELIA OLTGOSPE R:\IA, Xutt. Wet Mountain Valley, Brandegee. 
 
 MENTZELIA WKIG-HTII, Gr. PI. Fendl.,p. 48. Annual, rough-scabrous ; 
 stems simple or paniculate, 2 high ; leaves oblong-lanceolate, coarsely 
 sinuate-deutate, lowest attenuate into a petiole, upper ones truncate at 
 base or somewhat broadly auriculate, closely sessile ; bracteoles 1-2, 
 linear, entire, equaling the ovary; flowers small, ochroleucous; petals 10, 
 lanceolate-spatulate, scarcely surpassing the lobes of the calyx, shorter 
 than the cylindrical ovary ; filaments all linear-subulate, outer ones a 
 little dilated; placentas 3-ruany seeded; seeds winged. Purgatory River, 
 Dr. Bell. 
 
 ., var. C^SPITOSA, Eng. Syn. Proc. Am. 
 Ac., v. 3, p. 9. Csespitose ; radial spines 12-15, setaceous, straight, puberu- 
 lent, white, central one often wanting ; fiinbriate sepals and yellow pe- 
 
 I MAMILLARIA, Haw. Sepals aiid petals united beyond the naked ovary into a shoit 
 tube. Berry juicy, oval or club-shaped. Seeds brown or black ; embryo straight, 
 without albumen ; cotyledons very short, globose. Low, globose or oval plants, simple 
 or branched, covered with spine-bearing tubercles; flowers rising from the axils of the 
 tubercles, usually small, about as wide as long, opening in sunshine only. 
 
48 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 tals often sparingly denticulate at the apex, lanceolate or linear-Ian cool ate, 
 acute 5 stigmas 5, spreading; berry subglobose, shorter than the tuber- 
 cles, red ; seeds globose, serobiculate, black. Golden City, Greene. 
 
 MAMILLARIA VIVIPARA, Haw. Eng. Syn. /. c., p. 13. Simple, oval, the 
 almost terete tubercles bearing fascicles of 5-8 reddish-brown spines, sur- 
 rounded by 15-20 grayish oues in a single series ; all straight and very 
 rigid 5 the latter 5 // -8' / long; the former even 10" long ; flowers purple, 
 often 2' or more in diameter, with numerous lance-subulate petals and 
 fringed sepals; berry oval, green; seed pitted, light-brown. Foot-hills 
 near Long's Peak, Coulter. Redfield. 
 
 ECHINOCACTUS l SIMPSON!.- Eng. Simple, globose or depressed, with 
 ovate tubercles like a ILainillaria, bearing 20 outer ash-colored spines 
 and 5-10 stouter, darker, inner ones, all straight and rigid ; flowers from 
 the top of the just developing tubercles, small, 9"-12" broad, yellowish- 
 green to purplish ; scales on the ovary very few ; berry small, dry, with 
 few black, tuberculated seeds. Near Canon City, Brandegee ; Greene. 
 
 CEREUS 2 VIRIDIFLORUS, Eng. Syn. 1. c. p. 22. Ovate or at length 
 cylindrical, simple or sparingly branched, l'-2' high ; ribs about 13 ; are- 
 olae ovate-lanceolate ; spines strictly radiating, 12-18, with 2-(> superior, 
 setaceous ones, the rest lateral, longer, the lower frequently purplish- 
 brown, the others white; central one often wanting, when present, stouter, 
 solitary, variegated; flowers lateral towards the apex, yellow, becoming 
 green ; berries elliptical, small ; seeds tuberculated. Canon City, Bran- 
 degee ; Coulter. 
 
 CEREUS FENDLERI, Eng. Syn. I. c. p. 25. Stems 3' -8' high, not 
 many from the same base, ovate-cylindrical ; ribs 9-12; areoLe rather 
 crowded ; spines very variable, always bulbous at base, radial ones 7-10, 
 straight or curved, 6"-12" long, white and brown, lower ones stronger, 
 central one stout, curved above, dark-brown, often elongated, l'-2' long ; 
 the flowers lateral below the top, large, 2 / -3 / in diameter, of a deep pur- 
 ple color, diurnal; berry I'-IJ 7 long, edible; seed oblique, deeply and 
 irregularly pitted by the confluence of many of the tubercles. Canon 
 City, Brandegee; Greene. 
 
 CEREUS GON ACANTHUS, Eng. & Big. Pac. R. R., 4, p. 33. Ovate, 
 simple or sparingly branched from the base, 7-ribbed; areolje large, 
 orbicular, distant; spines robust, angled, straight or variously curved ; 
 radial ones 8, yellowish, often blackish at base and apex, 8 // -15 // long, 
 the upper one much larger than the others, 1J'-2J' long, nearly equaling 
 the central one, w.hich is remarkably stout, angular, and chaneled ; flow- 
 ers scarlet, open day and night. Caiion City, Brandegee. Pueblo, Greene. 
 
 J ECHIXOCACTUS, Link & Otto. Sepals and petals united beyond the sepal-bearing 
 ovary into a short tube. Berry globose or oval, juicy or dry, covered with scales and 
 sometimes with wool. Seeds brown or black ; embryo usually curved over a small al- 
 bumen ; cotyledons short, foliaceous, parallel to the sides of tlie seed. Globose or oval, 
 mostly simple, generally many ribbed with bunches of spines on the ribs, rarely tu- 
 berculated; flowers near the top, just above and close 'to the spines of the same season, 
 usually large, as wide as long, open only in sunshine. 
 
 2 CEREUS, Haw. Sepals and petals united above the sepal-bearing ovary into a short, 
 or, usually, long tube. Berry juicy, globose or oval, beset with scales (sometimes rather 
 indistinct) or spines. Seeds brown or black ; embryo straight or usually curved, with- 
 out albumen ; cotyledons short or foliaceous, commonly contrary to the sides of the 
 seed. Globose or oval, or mostly cylindric or columnar, few or many ribbed, usually 
 branched, bearing bunches of spines on the ribs ; flowers lateral, just above and close 
 to the spines of previous seasons, usually large, fully open in sunlight or at night, or 
 rarely, permanently. 
 
 The above species belong to ^Eclilnoccrens, Eng. Heads commonly many, low, oval 
 or cylindric ; flowers short, mostly as wide as long; ovary covered with bunches of 
 spines ; stigmas green ; seeds small, tuberculated ; cotyledons short, straight. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 49 
 
 CEREUS PHCENICEUS, Eng. Syn. 1. c., p. 28. Heads 2'-3' high, 
 2' thick, generally forming dense hemispherical masses 1 or more in 
 diameter, ovate or subglobose, 9-11 ribbed; areolae ovate-orbiculate, 
 somewhat crowded ; spines setaceous, straight, radial ones 3-12, up- 
 per ones a little shorter, central ones 1-3, bulbous at base, terete, a 
 little stronger, 5"-10" long, lowest one longest; stamens shorter than 
 the petals ; stigmas 6-8. Canon City, Brandegee ; Greene. 
 
 CEREUS CONOIDEUS, Eng. & Big. P. R. R., vol. 4, p. 35. Heads 
 3'-4' high, few from one base, of unequal height, ovate, acutish towards 
 the apex, conoid, 9-11 ribbed; radial spines 10-12, slender, rigid; upper 
 ones 2"-5" long, lateral ones 6"-15"; upper central spines hardly longer 
 than the lateral ones, lower one l'-3' long, angular and often compressed. 
 
 Canon City, Brandegee. 
 
 CEREUS PAUCISPINUS, Eng. Syn. 1. c., p. 29. Stem 5'-9' high, 
 2'-3' in diameter, ovate-cylindrical, sparingly branching or simple, 5-7 
 ribbed; areolae remote; spines strong, 9"-16" long, dark-colored, radial 
 3-6, central wanting or rare, stout, subangled. Canon City, Brandegee. 
 
 OPUNTIA CAMANCHICA, Eng. & Big. Syn. I. c., p. 37. Large, 
 prostrate, extensively spreading, joints ascending, 6'-7' long, subor- 
 biculate ; pulvillre remote, numerous, armed ; set* straw-colored or 
 brownish, few ; spines 1-3, compressed, brownish, paler at the apex, 
 !J 7 -3' long, upper ones elongated, suberect, the others deflexed; berry 
 large, juicy, ovate, widely uinbilicate; seeds 2"-3" in diameter, angled, 
 deeply notched at the hilum. Canon City, Brandegee. 
 
 OPUNTIA EAFINESQUII, Eug. Syn. 1. c., p. 39. Very variable. 
 
 Gallon City, Brandegee. 
 
 OPUNTIA MISSOURIENSIS, DC. Eng. Syn. 1. c., p. 43. Gray's Manual, 
 p. 185. Presenting a great variety of forms. Caiion City, Brandegee. 
 Foot-hills near Denver, Coulter. Colorado Springs, Porter. Frequent in 
 broad patches on the plains and in the mountains. 
 
 OPUNTIA ARBORESCENS, Eng. Syn. 1. c., p. 51. Arborescent, 
 5-6 high, (but further south 10-20 or more;) branches numerous, 
 verticillate, horizontal, or pendulous ; joints verticillate, cylindrical ; 
 tubercles cristate, prominent ; spines 8-30, divaricately stellate ; berry 
 sub-hemispherical, tuberculate-cristate, yellow, unarmed; seeds regu- 
 lar. The woody portion of the stems, deprived of the parenchyma, is 
 often manufactured into canes. Abundant along the Arkansas east of 
 the mountains, Porter. Cation City, Brandegee. 
 
 CUCURBITACEJE. 
 
 CUCURBIT A PERENNIS, Gr. PL Lindh. Pt. 2, p. 193. Boot fleshy, very 
 large, 6'-3 thick, fusiform, yellow inside ; steins trailing on the ground ; 
 leaves strigose-canescent, cordate-ovate or triangular, narrowed above, 
 undivided or subsiuuate-repand, margin denticulate; lobes of the 
 calyx subulate, equal to the tube ; fruit globose, yellow, 2 / -3 / in diame- 
 ter. Plains and prairies east of the mountains, Porter. Xear Canon 
 City, Brandegee ; Redfield. 
 
 ECHINOCYSTIS LOBATA, T. & G. Gray's Manual, p. 187. ]tfear Den- 
 ver, Dr. Smith. 
 
 CICUTA MACULATA, L. Plains of the Platte, June, Coulter. 
 SIUM LINEARE, MX. Weston's Pass and White House Mountain at 
 11,000 feet altitude, Coulter. 
 4 F c 
 
50 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 SIUM ANGUSTIFOLIUM, L. Near Canon City, Brandegee. Denver, 
 Porter. 
 
 OSMORRHIZA NUDA, Torr. P. R. R., 4, p. 93. Petioles and lower part 
 of the stems strigosely pubescent ; leaflets broadly ovate, often deeply 
 3-lobed, coarsely dentate-serrate; peduncles elongated; involucre and 
 involucels none, or occasionally present though small ; umbel 4-rayed, 
 rays 4-6 flowered ; styles very short, fruit obtuse, shorter than the pedi- 
 cels. Too near 0. brevistyla of the Eastern States. Hall & Harbour. 
 Sierra Mojado, Brandegee. 
 
 CYMOPTERUS 1 GrLOMERATUS, DC. Eoot thick and|fusiform ; plant 3'-$' 
 high ; caudex about I/high, sometimes divided, bearing the leaves and pe- 
 duncles at the summit ; leaves on long petioles, ternately-divided and bi- 
 pinnatifid, segments oblong-linear; rays of the umbel 4-6, very short; pe- 
 duncles much shorter than leaves, 6 // -12 // long; flowers white, those of 
 the center abortive, pedicellate; leaflets of the palmately 5-7 parted in- 
 volucel coherent at base and partly adnate to the rays of the mnbellets ; 
 calyx-teeth subulate; fruit elliptical, 4" long, wings thickened and some- 
 what spongy, more or less obsolete; vitta3 in each interval 3-4, in the 
 commissure about 8. Hall & Harbour, 210. Canon City, Brandegee. 
 Clear Creek Canon, Coulter. 
 
 CYMOPTERUS MONTANUS, Nutt. Eoot long and fleshy; stem 2 / -6 / 
 high; caudex 6"-18" long, erect, sheathed at base; leaves glaucous, 
 ovate in outline, bipinnately divided, segments rather few and distant, 
 about 3-4 pairs, oblong-linear, rather obtuse ; peduncles shorter or 
 longer than the leaves; involucre and involucel somewhat campanu- 
 late, scarious, about 5-parted, segments oblong, obtuse, entire or 5-cleft, 
 with greenish ribs; flowers white, polygamous; calyx-teeth minute, 
 ovate ; fruit about 3" long, the integuments thick and opaque so as to 
 conceal the vitta3, commissure with 4 vitta3; carpophore persistent, 
 2-parted; wings 6-10, broad and membranous, often unequal; seed more 
 or less involute. .HiaM & Harbour, 211. Canon City, Brandegee. Plains 
 near Denver, Coulter. 
 
 CYMOPTERUS ALPINUS, Gr. Sill. Jour., (N~. &,) 32, p. 408. Caudex 
 c3spitose; leaves pinnatlsect, pinnae, 3-5, approximate, 3-7 parted, 
 segments linear-lanceolate, acutish or mucronate, very entire, or the 
 lower 2-3 cleft; scape 2 / -4 / high, bearing a subcapitate umbel, a little 
 longer than the leaves; iuvolucels somewhat one-sided, 5-7 parted, seg- 
 ments linear or lanceolate, green, equaling the golden flowers; teeth of 
 the calyx lanceolate, subulate, persistent; wings of the fruit equal, some- 
 what erose, scarcely undulate; vittse 1-2 in the intervals, 4 in the com- 
 missure; carpophore none; fruit 2 // -3 // long. High alpine. Hall & Har- 
 bour, 213; Parry, 158; Canby. Summit of Pike's Peak, Porter. Mount 
 Lincoln at 13,000 feet altitude, Coulter. 
 
 CYMOPTERUS? ANISATUS, Gr. Proc. Ac. Phil, March,I863, p. 33. Acau- 
 lescent, csespitose from the much-branched caudex, glabrous ; leaves 
 
 CYMOPTERUS, Raf. Calyx-teeth rather prominent and setaceous or lanceolate, mi- 
 nute or obsolete. Petals ovate, oblong or oblanceolate, inflexed, quasi-einarginate. 
 Disk flattened around the styles, undulate-margined. Fruit ovate or elliptical, obtuse 
 or retiise, subterete or slightly compressed dorsally; carpels semi-terete; ribs thick 
 and elevated, all or only the lateral ones or those opposite to the calyx-teeth ex- 
 panded into wings ; vittse numerous, narrow. Carpophore 2-parted, free or attached 
 to the carpels. Seeds much compressed dorsally and more or less concave on the face. 
 Perennial and subeyespitose, with a thickened caudex ; leaves pinnately decompound, 
 with narrow, small or incisely pinnatitid segments ; umbels compound, usually few- 
 rayed ; involucral bracts 1-2 or none ; of the iuvolucels several, very narrow or broad 
 and membranous; flowers white or yellow. Eenth. $ Hook. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 51 
 
 4'-6' long, erect, narrow, on long petioles, somewhat rigid, pinnate, the 
 leaflets 6-10 pairs, piunately parted, segments entire or laciniately 
 lobed, linear, pungently acute; scapes equaling or exceeding the leaves, 
 6 / -12 / high; rays 6-12, unequal; involucre usually none; involucels of 
 6-8 linear, subulate leaflets, equaling the white flowers; calyx-teeth con- 
 spicuous, linear-subulate, foliaceous; fruit 2" long, irregularly winged, 
 the lateral ribs and the dorsal one usually broader, rather thick, and not 
 membranous ; vittse obscure, 1 in each narrow interval, 2-4 in the com- 
 missure ; seeds slightly concave, somewhat crenately sulcate under the 
 dorsal intervals. In the mountains. Sail & Harbour, 222; Canby. 
 
 MuSENiUM 1 TRACHYSPERMUM, ISTutt. Decumbent ; leaves bipinnati- 
 fid, segments pinnatifid, rather obtuse, lobes often 2-3 cleft and very 
 short, rachis wide; involucel about 8 leaved, short; fruit short, oval, 
 pulverulently-scabrous. Near M. divaricatum, Xutt, but smaller. Fruit 
 only half as large, nearly as broad as long. Hall & Harbour, 214. 
 
 MUSENIUM GREENII, Gr. Proc. Am. Acad., Feb., 1872, v. 8, p. 387. Stem- 
 less ; leaves all from a caudex squamose at the summit, almost simply 
 pinnate, narrow ; leaflets 7-9, on a rachis margined only above, sessile y 
 subovate in outline, piunately 5-7 lobed and few-toothed, teeth and lobes 
 sharp ; scapes more than a span high, wholly naked; umbels short- 
 rayed; involucels of 3 or 4 subulate bracts, nearly equaling the subsessile, 
 yellow flowers ; fruit 2" long, oblong, very obtuse, truncate, smooth,, 
 crowned with the ovate, subulate calyx-teeth ; ribs rather prominent, 
 very narrow; vittse between, 1-2, large; beneath, solitary, small. Mount- 
 ains above Golden City, Greene. 
 
 LiauSTiouM APIIFOLIUM, Benth. & Hook., Proc. Am. Acad., 7, p. 347. 
 ( Cynopium, Nutt.J Stems 2-4 high, terete, leafy or naked, branching 
 towards the summit, with 2-4 umbels on long peduncles; leaves piu- 
 nately decompound, the segments incisely lobed, acute; cauline leaves 
 teruate, upon a short dilated sheath; involucre none; involucel few- 
 leaved, lateral; calyx-teeth obsolete; the stylopodia rather prominent, 
 with a somewhat \lilated crenate margin ; fruit 2J" long, oval, with 
 acutely carinate ribs; seeds concave on the face, with a central longitudi- 
 nal ridge. Platte River and in the Sierra Madre Eange, Coulter. Wet 
 Mountain Valley, Brandegee. Hall & Harbour, 218. 
 
 LIGUSTICUM SCOPULORUM, Gr. Proc. Am. Acad., 1, p. 347. Rather stout,. 
 2-4 high ; leaves pinnately decompound, segments ovate, deeply incised,, 
 teeth very acute; fruit elliptical-oblong, 4" long; wings narrow, thick- 
 ened, intermediate and dorsal 1-2, often obsolete; vittse marked, rather 
 large, in all the intervals 3, in the lateral ones sometimes 4; section of 
 the seed almost reniform. Alpine and subalpiue. Hall & Harbour, 216.. 
 Gailon City, Brandegee. Xear Denver, Canby. 
 
 LIGUSTICUM MONTANUM, Gr. ( Tliaspium montanum, Gr. PI. Fendl, p.. 
 57,) Proc. Am. Acad., 7, p. 347. Very smooth; stem erect, slender, from a 
 thick fusiform root, l-2 high; leaves twice ternately divided; leafletscu- 
 neiform, trifid, lobes oblong or lanceolate, sometimes linear, entire, or the 
 
 'MUSENIUM, Nutt. Margin of the calyx 5-toothed ; the teeth persistent. Petals 
 obovate; the point inflexed. Styles slender, reflexed, rather long. Fruit ovate or 
 ovate-oblong, laterally compressed. Carpels more or less minutely scabrous, with 5 
 filiform, acute, slightly prominent ribs. Intervals with 2-3 vittas. Commissure with 
 4 vitt*. Carpophore 2-cleft. Seed with the sides moderately incurved. Perennial, 
 dwarf, rather foetid, resiuiferous (North American) herbs, with fusiform roots and a- 
 short caudex, or branching dichotomously from the base. Leaves 2-3 piuuatitid. In- 
 volucre none. Involucels unilateral, of a few rather rigid narrow leaflets. Flowers 
 yellow or white. T. $ G. Fl. N. Am. 
 
52 
 
 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 larger ones incised ; petioles with a long dilated, spathaeeous base; in- 
 volucre none; involucel of about 9 setaceous, unequal leaflets, equaling 
 the pedicels; flowers bright-yellow; fruit l"-2" long, oblong-oval or 
 nearly orbicular, marginal wings broad ; the strong vitta3 single or double. 
 Foliage variable. Hall & Harbour, 217; Porter; Hoopes. Sierra Madre 
 Range, at 11,500 feet altitude, and Twin Lakes, Coulter. 
 
 THASPIUM TRIFOLIATUM, Gr. Near Gallon City and Wet Mountain 
 Valley, Brandegee. 
 
 THASPIUM TRACHYPLEURUM, Gr. Proc. Acad. PML March, 1863, p. 
 63. Glabrous; stem 1 or more high, striate, 1-3 leaved, bearing 2-3 
 umbels on long peduncles; leaves ternately decompound, segments fili- 
 form, rnucronulate; petioles dilated at base, not scarious-margined ; in- 
 volucre and involucel of 1-3 small, subulate leaflets; flowers yellow; 
 fruit twin-ovate, laterally compressed, transverse section of the meri- 
 carps almost orbicular ; ridges or wings 5, similar, thick, suberose, very 
 obtuse, scabrous, one strong vitta in each of the intervals. Hall & 
 Harbour, 215; Median. South Park, Porter. Saint Vrain Canon, Bear 
 Greek and Boulder Canon, Coulter. Grand Caiiou of the Arkansas, 
 Brandegee. 
 
 SESELi 1 HAILLII, Gr. Proc. Am. Ac., June, 1870, v. 8, p. 288. Acauies- 
 cent from a stout caudex branching at the summit; lea vespinnati sect, 3-5 
 pairs, segments cuneate or oblong, incised or pinuatind, lobes 3-7, 
 short, mucronate, sometimes sparingly toothed; scape very simple, 
 naked, surpassing the leaves, slender, 10' high ; rays of the umbel 4-8, 
 short, elongated after flowering; iuvolucel deeply parted, divisions ovate, 
 3-cleft at the summit, longer than the yellow flowers; fruit narrowly ob- 
 long, very smooth, much longer than the very short pedicel; teeth of the 
 calyx short, not persistent; vitta3 in the intervals large, often with very 
 small accessory ones in each rib ; section of the seed transverse, sub- 
 quadrate. Hall & Harbour, 221. Bear Creek, 17 miles west of Denver, 
 Vasey. Near Denver, Coulter. 
 
 ARCHANGELICA GMELINI, DC. Near Denver, Dr. Smith. Cafion 
 City, Brandegee. Weston's Pass and Mount Lincoln, at 12,500 feet alti- 
 tude, Coulter. Hall & Harbour, 219. 
 
 ARCHEMORA FENDLERI, Gr., PI. Fendl, p. 56. Boot fasciculate-tuber- 
 ose; tubers 3-4, oblong, about V ; stem simple, slender, l-2 high; 
 leaves pinnate 5-7 foliolate, leaflets f'-lj' long, those of the radical and 
 lower cauline ones ovate or oblong, all incisely serrate throughout; 
 petioles spathaeeous at base; involucels none; umbels small; fruit 
 small, hardly 2" in length ; oval, the wing-like margins narrower than the 
 disk; vittae of the commissure 4, of which 2 are shorter; flowers white. 
 Hall & Harbour, 220. " In subalpine woods," near Cafion City, Bran- 
 degee. Mount Lincoln, at 12,500 feet altitude, Coulter. 
 
 PEUCEDANUM (?) NUDICAULE, Nutt. (?) Caulescent or sometimes 
 scarcely so, minutely prninose-pubesceut, 3'-15' high; leafy only at 
 base; leaves bipinnateor ternate-bipinnate, the segments incisely lobed 
 with usually rather broad and subacute divisions; umbel somewhat 
 ^capitate in flower, with 8-12 rays; involucre none; involucels unilateral, 
 
 1 SESELI, L. Margin of the calyx 5-toothed, teeth short, somewhat thick'ened. Petals 
 obovate, coarctate in an inflexed point, emarginate or subentire. Fruit oval or oblong, 
 eubterete in the transverse section, crowned by the reflexed styles. Ribs of the meri 
 carp 5, slightly prominent or elevated, thickened and corky ; lateral ones marginal and 
 often a little broader. Intervals with a single vittae, rarely 2-3 vitta}. Carpophore 
 2-cleft. Albumen sub-serniterete. Koch, FL Germ. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 53 
 
 of 6-10 membranously margined, more or less united bracts ; petals 
 white, with an attenuated apex and quasi- obcordate; calyx-teeth short; 
 fruit pubescent, broadly oval, 3"-4" long and 3" broad, the thickish 
 wing more than half as wide as the seed; vittse 3 in the intervals, 6 
 upon the commissure, conspicuous; seed flattened. Hall & Harbour, 212. 
 
 SANICULA MARLLANDICA, L. Canon City, Brandegee. Ute Pass, at 
 9,000 feet altitude, Coulter. 
 
 DAUCUS CAROTA, L. Xear Canon City, Brandegee. Introduced. 
 
 HERACLEUM LANATUM, MX. Canon City, Brandegee. Plains of the 
 Platte and Twin Lakes, Coulter. 
 
 JtBAUACJB. 
 
 ADOXA 1 MOSCHATELLINA, L. Perennial, small and slender, herba- 
 ceous, 3' high; root tuberous ; radical leaves 2-3 ternately compound, on 
 long petioles, the cauline solitary, 1-2 ternate or incised ; flowers 4-6, 
 greenish, in a terminal capitulum, the lateral ones mostly pentamerous, 
 the terminal tetramerous. An alpine plant found also in the north of 
 Europe and Asia. It exhales the odor of musk. "Subalpine ; common f 
 Hall & Harbour, 223; Meehan. Mount Lincoln, at 13,000 feet altitude, 
 Coulter. 
 
 CORTVACEJ:. 
 
 CORNUS CANADENSIS, L. Hall & Harbour ; Parry, 437. 
 
 CORNUS PUBESCENS, Nutt. ( C. sericea, p. (?) occidental^ T. and G.) Shrub 
 6 8 high ; branches sub-erect, branchlets spreading, more or less red- 
 dish, puberuleut when young; leaves l'-4' long, ovate or elliptical, acute 
 or acuminate, slightly pubescent, pale beneath, obtuse or acute at base; 
 cymes crowded, pubescent, li'-2' in diameter ; calyx-teeth minute ; petals 
 white, oblong-lanceolate, rather obtuse ; stigma small, capitate ; drupe 
 subglobose, white, becoming lead-color. " Without the calyx-teeth, en- 
 larged stigma, and woolly pubescence of C. sericea, and nearer to C. 
 stolonij'era." Watson. Platte River, Coulter. 
 
 CAPRIFOLIACE^:. 
 
 LINXJEA BOREALIS, Gronov. Hall & Harbour, 224 ; Dr. Smith. Mount 
 Lincoln at 10,000 feet altitude, Coulter. 
 
 SYMPHORICARPUS MONTANUS, H. B. K. Shrub, 2-4 high, branching 
 widely ; leaves very variable, orbicular, ovate, or ovate-lanceolate, acute 
 or obtuse, entire or sharply cleft and lobed, soft-pubescent and ciliate or 
 wholly glabrous and often glaucous, J'-IJ' long ; flowers axillary, solitary 
 on the ends of the short, leafy branches"; bracts much shorter than the 
 ovary; teeth of the calyx obtuse, glabrous or ciliate; corolla tubular or 
 funnel-form, 2 // -6 // , nearly glabrous within, usually light pink ; stamens 
 and style included ; fruit globular or oblong, white. Hall & Harbour, 
 225. Canon City, Brandegee ; Canby. Upper Arkansas, Porter. Wes- 
 ton's Pass, at 11,000 feet altitude, Coulter. 
 
 1 ADOXA, L. Flowers perfect. Tube of the calyx coherent with the lower part of the 
 ovary; the lirnb slightly 2-3 cleft. Petals 4-5 inserted on the limb of the calyx, united 
 at the base, spreading. Stamens 4-5, each filament 2-parted; the divisions bearing each 
 a single : celled peltate anther. Styles 4-5,subulate. Fruit an herbaceous and juicy berry, 
 4-5 celled, each cell with a single suspended seed. Seeds compressed, with a membrana- 
 ceous margin. T. 4- G. Fl. N. Am. 
 
54 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 SYMPHORICARPUS OCCIDENT ALIS, K. Br. Hall & Harbour, 227. 
 Canon City, Brandegee. B. H. Smith. Near Denver and Colorado 
 Springs, Porter. 
 
 LONICERA INVOLUCRATA, Banks. Hall & Harbour, 226. Near Den- 
 v^r, Dr. Smith. Along streams in the foot-hills and among the moun- 
 tains, Porter. Mount Lincoln, at 13,000 feet altitude, Coulter. 
 
 SAMBUCUS RACEMOSA, L., var. PUBENS, Watson. (S. pubens, MX.) 
 Wet Mountain Valley, Brandegee. Chicago Lakes, at 10,000 feet alti- 
 tude, Mount Lincoln, at 12,000 feet, and Mount of the Holy Cross, 
 Coulter. 
 
 VIBURNUM PAUCIFLORUM, Pylaie. Hall & Harbour, 228. 
 
 RUB1ACE42. 
 
 GALIUM APARINE, L. Near Canon City, Brandegee. Plains of the 
 Platte, Coulter. 
 
 GALIUM ASPERRIMUM, Gr. PL Fendl., p. 60. Stems diffuse, prickly 
 backward on the angles; leaves all in sixes, lanceolate, attenuate at 
 base, or the lower obovate-lanceolate and f long, bristly-acuminate, 
 glabrous, shining, very rough-prickly backwards on the margins and keel 
 beneath, those of the branches small, much shorter than the peduncle ; 
 cymes paniculate, several-flowered, dichotomous ; corolla 2" in diameter ; 
 petals 3-nerved, ovate, acuminate, white, rather large; ovary densely 
 covered with short uucinate hairs. Cucharas Eiver, Huerfano County, 
 Greene. 
 
 GALIUM TRIFIDUM, L. Hall & Harbour, 230. 
 
 GALIUM TRIFLORUM, MX. Plains of the Platte, Coulter. 
 
 GALIUM BOREALE, L. Very common everywhere among the moun- 
 tains and exhibiting a great diversity of forms. Hall & Harbour, 
 229; B. H. Smith; Coulter. 
 
 VALER1ANACEJE. 
 
 VALERIANA DIOICA, L., var. SYLVATICA, Watson. (V. sylvatica, 
 Kichards.) Hall & Harbour, 231; Parry ; Brandegee; Dr. Smith; Meehan. 
 Twin Lakes and Clear Creek Canon, Coulter. 
 
 VALERIANA EDULIS, Nutt. Near Denver, Dr. Smith. Canon City, 
 Brandegee. Clear Creek Canon and Bear Creek, Coulter. 
 
 COMPOSITE. 
 
 LIATRIS PUNCTATA, Hook. Stems 8'-3 high from a thick, knotted, 
 fusiform root, glabrate, leafy to the top ; leaves linear, rigid, strongly 
 punctate on both sides, glabrous or their margins sometimes cili- 
 ate, lower ones 3'-5' long, slightly 3-iierved, I' 1 -3" wide, pungently 
 acute; heads in a dense spike, 4'-10' long, 4-6 flowered; flowers 
 reddish-purple; scales of the cylindraceoiis involucre oblong, strongly 
 punctate, imbricated, appressed, with mucronate, acuminate, rather 
 spreading tips, margins woolly-ciliate; bristles of the pappus about 30, 
 purplish or white, very plumose; achenia hairy. Hall & Harbour, 
 315; Dr. Smith; B. H. Smith. North Park, Dr. Hay den. Eather com- 
 mon on the plains around Denver and Colorado Springs, Porter. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 55 
 
 LiATRis SCARIOSA, Willd. South Park, Canby ; Porter. Canon City, 
 Brandegee. Plains near Denver, Coulter. 
 
 PECTIS^ Pectidopsis) ANGUSTIFOLIA, Torr., Ann. JV. T. Lye. 2, p. 214. 
 Annual, very low, more or less branching from the base, nearly gla- 
 brous; leaves opposite, narrowly linear, punctate with large pellucid 
 glands, somewhat connate at base, margins below fringed with a few 
 bristles; heads on short peduncles on the ends of the branches; flowers 
 yellow, those of the ray 7-8. " Gravelly banks of streams." Hall & 
 Harbour, 297. STear Grand Canon of the Arkansas, Redfield. 
 
 KUHNIA EUPATORIOIDES, L., var. GRACiLis, T. & G. Leaves numerous, 
 shorter, linear and mostly entire, minutely pubescent, revolute on the 
 margins; corymbs loose, paniculate. Canon City, Brandegee. Near Den- 
 ver, Dr. Smith. 
 
 EUPATORIUM PURPUREUM, L. Near Canon City, Brandegee. 
 
 EUPATORIUM BERLANDIERI, DC. (E. ageratifolium, DC., var. Texense, 
 T. & G.) DC. Prod. 5, p. 167. Bot. Mex. Bound. 2, p. 76; also var. her- 
 baceum, Gr. PL Wright., 2, p. 74. "Shrubby, glabrous; branches terete, 
 8triate; leaves opposite, petioled, ovate, acuminate, entire at base and 
 apex with a few crenate teeth between, not glandular ; branches oppo- 
 site, corymbose at the apex; heads pedicillate, about 25-flowered; scales 
 of the involucre in about 2 series, linear, acuminate ; acheiiium angled, 
 slightly scabrous on the angles; pappus almost twice shorter than the 
 corolla." 
 
 Yar. Stem suffruticose only at base, minutely puberulent above but 
 not glandular ; leaves cordate or triangular-cordate, larger ones 2' long, 
 iy broad, 3-uerved ; scales of the involucre lanceolate or lauce-linear ; 
 pedicels somewhat glandular ; pappus nearly equaling the corolla ; 
 achenia slightly scabrous on the angles. Wet Mountain Valley, Brande- 
 gee. 
 
 BRiCKELLiA 2 CALIFORNICA, Gr. Scurfy -puberuleut ; stems numerous 
 from a woody base, 1J high, branching; leaves 9"-20" long, thickish, 
 alternate, petioled, deltoid-ovate or subcordate, acutish, dentate, ob- 
 scurely 3-uerved from the base, the under surface reticulated; heads 
 medium-sized, nearly sessile in short axillary racemes, 10-12 flowered; 
 involucral scales imbricated, obtuse, the outer ones appressed, very 
 short, inner ones erect, elongated; achenia minute, finely pubescent, 
 obscurely striate; pappus scabrous. Canon City, Brandegee. 
 
 BRICKELLIA GRANDIFLORA, Nutt. Stem 2-2 high, rather stout, 
 paniculate at summit; leaves cordate-triangular, about 2' long, opposite 
 or alternate, loug-petioled, coarsely serrate, glabrous or slightly pubes- 
 cent, dotted with resinous globules beneath ; heads middle-sized or 
 very large, glomerate at the ends of the panicled branches, about 30- 
 flowered ; involucral scales in several series, imbricated, outer ones 
 
 <PECTTS, L. Heads many-flowered ; the flowers of the ray in a single series, ligulate 
 pistillate; those of the 'disk perfect, tubular. Involucre cylindrieal-campanulate ; 
 the scales about 8, in a single series, somewhat eonduplicate. Receptacle naked. 
 Corolla of the disk 5-toothed, regular. Branches of the style semi-cylindrical ; short. 
 Achenia crowded with a very short scarious minutely about 5-toothed and somewhat 
 lacerate pappus. T. $ G. Ft. ^V. Am. 
 
 * BRICKELLIA, Ell., Gray, in PL Wrlylit, 1, p. 84. Heads 4-50 flowered. Involucre imbri- 
 cated; the scales striated, outer ones shorter. Receptacle flat, naked. Flowers all tubu- 
 lar; the corolla white or yellowish, cylindrical, scarcely expanded towards the summit ; 
 the teeth very short. Base of the style bulbous and often villous. Achenia with ten 
 striae, sometimes obscurely 5-angled. Pappus of scabrous-barbellate or slightly plu- 
 mose bristles. Perennial herbs or sutr'ruticose plants, with opposite or alternate leaves, 
 and frequently the habit of Eupatorium. 
 
56 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 herbaceous, ovate, with long subulate spreading tips, inner ones ellipti- 
 cal, acute or acutish, with scarious margins; achenia sparsely hairy 
 above or glabrous ; pappus deciduous. Hall & Harbour, 313 ; Parry, 
 423 ; Brandegee; Dr. Smith; B. H. Smith; Porter. Sierra Madre Range, 
 Twin Lakes, Coulter. Throughout the mountains, at all elevations. 
 
 NARDOSMIA SAGITTATA, Hook. Fl. Bor. Am. 1, p. 307. Leaves oblong, 
 acute (or obtuse,) entire, sagittate, the lobes obtuse, DO., (leaves cor- 
 date or reniform-siiiuate, sinuate-toothed, tomentose beneath). "Near 
 Pike's Peak/' Hall & Harbour, 314. 
 
 ASTER ADSCENDENS, Lindl. T. & O., Fl. N. Am., 2, p. 111. Steins 
 low, ascending; branches simply racemose or somewhat corymbose; 
 radical and lower leaves oblong-linear or narrowly spatulate, glabrous, 
 entire, with ciliate-scabrous margins, the cauline linear-lanceolate, 
 partly clasping; scales of the hemispherical involucre numerous, closely 
 imbricated, unequal, nearly glabrous, the exterior linear-oblong, obtuse, 
 the innermost acute; achenia minutely hairy. Median. Canon City, 
 Brandegee. Twin Lakes, Coulter. 
 
 Var. CILIATIFOLIUS, T. & G. Low; stem not denuded and scapiform, 
 pubescent above; leaves more proportionate, distinctly ciliated ; scales 
 of the involucre somewhat acute. Hall & Harbour, 252 ; Parry, 419. 
 
 Var. FREMONTII, T. & G., Fl N. Am., 2, p. 503. Stem leafy, 4'-6' 
 high, simple, bearing 1-2 heads, sometimes more, more or less woolly 
 pubescent ; leaves thin, cauline ones oblanceolate; scales of the involucre 
 loose, exterior herbaceous, inner ones narrowly linear, acute; pappus 
 white. "Alpine and subalpine, in low grounds." Gray's Peak, Dr. 
 Smith. Sierra Madre Range, Coulter. 
 
 Yar. PARRYI, Watson. Stem l-2 high, often corymbosely much 
 branched; leaves large, broadly oblanceolate, 5 / -12 / long, l'-2' wide, nar- 
 rowed into winged petioles, the upper ones gradually smaller and ses- 
 sile, partly clasping; heads large; in volucral scales finely ciliate, the 
 outer ones broadly lanceolate with herbaceous tips, scarious below, 
 loose; peduncles not glandular. Sierra Madre Range, Coulter. 
 
 ASTER L^EVIS, L. Canon City, Brandegee. Near Denver, Dr. Smith; 
 Hoopes. 
 
 ASTER ERICOIDES, L., var. STRICTUS, Porter. Low, f-l high, gla- 
 brous, except the scabrous margins and ciliate bases of the leaves, erect* 
 slender, paniculately branched above, branches short; scales of the in- 
 volucre narrowly linear, lax, outer ones very acute, often entirely green, 
 inner ones scarious with a central green line; radical leaves narrowly 
 oblanceolate. "In the mountains at middle elevations," Hall & Har- 
 bour, 254. Near Denver, Coulter. Foot-hills west of Denver, Porter ; 
 Meehan; Hoopes. 
 
 ASTER MULTIFLORUS, Ait. Near Denver, Dr. Smith. North Park, 
 Hay den; Coulter. 
 
 ASTER FALCATUS, Lindl. Stem minutely pubescent with appressed 
 hairs, 1-1 high, leafy to the top ; leaves rigid, minutely appressed- 
 pubescent or smoothish except on the edges, the lower ones spatulate- 
 lanceolate, obtuse or acute ; 2 / -3 / long, 4 // -6" wide, short-stalked, the 
 upper ones oblong-linear, sessile, often slightly clasping, those of the 
 erect branches linear, often slightly falcate; heads terminal on the 
 branchlets, flattened hemispherical, 4 // -8 // in diameter; scales much im- 
 bricated, the outer smaller with greenish, appressed or slightly spread- 
 
SYNOPSIS OF THE FLORA OF COLORADO. 57 
 
 ing tips and whitish chartaceous margins; achenia pubescent. Twin 
 Lakes, Coulter. 
 
 ASTER CARNEUS, Nees. Wet Mountain Valley, Brandegee. On the 
 Platte, near Denver, Dr. Smith. 
 
 ASTER ^ESTIVUS, Ait M var. L^TIFLORUS, Gr. Varies in its smoother 
 stem, which is slightly pubescent above, and the spreading tips of the 
 involucral scales. Canon City, Branfagee. 
 
 ASTER OBLONGLFOLIUS, Nutt. Huerfano County, Greene. 
 
 ASTER NUTTALLII, T. & G., var. FENDLERI, Torr. Pac. E. R., 4, p. 97. 
 (A. Fendleri, Gr. PL'FendL, p. 66.) Stems many, from a subligneous 
 caudex, erect or ascending, 9'-12', high, rigid, rough-scabrous; branches 
 corymbose-paniculate, bearing one or rarely 2-3 heads ; leaves sessile, 
 rigid, coriaceous, small, linear, 6"-9" long, mucronulate, very entire, 
 glabrous, 1-nerved, hispid-ciliate on the margins ; lowest subspatulate, 
 those of the branches very short ; scales of the campanulate involucre 
 in 3 series, linear-oblong, glandulose-scabrous, mucronulate, outer ones 
 herbaceous, obtuse, lax ; inner ones acute, a little longer ; achenia pu- 
 bescent. Pueblo, Greene. Hall & Harbour. Fremont County, Bran- 
 degee. 
 
 ASTER GLACIALIS, Nutt. Ehizoma thickish, not creeping; stems 
 2 / -4 / high, erect, minutely pubescent above, bearing a single head, 
 leafy or nearly leafless ; leaves thickish, glabrous, spatulate-oblong and 
 lanceolate, radical ones 1' 2 7 long, 2 // -4 // wide, narrowed into a long 
 petiole, obtuse or even emarginate, canline ones oblong or oblanceo- 
 late, partly clasping ; scales of the involucre nearly equal, linear-spatu- 
 late, more or less acuminate, glandular-puberulent or nearly glabrous, 
 commonly blackish-purple ; rays numerous, white or purplish. " In the 
 high alpine region," Hall & Harbour, 242. Mount Lincoln and White 
 House Mountain, at 12,000 feet altitude, August, Coulter. 
 
 ASTER SALSUGINOSUS, Bichards. Stem erect, simple, 6'-8' high, 
 leafy, bearing 1-3 heads, pubescent above with appressed hairs ; radi- 
 cal leaves broadly spatula te or linear-obovate, with the margined 
 petiole 2'-9' long, wide, obtuse, glabrous, ciliolate, cauline ones lan- 
 ceolate and ovate, sessile and partly clasping, very acute, often mi- 
 nutely downy; heads very large, single, or 3-5 on long peduncles 
 thickened at the summit; scales of the involucre nearly equal, nar- 
 rowly linear, glandular-pubescent, lax, with mostly squarrose-spread- 
 ing or recurved, blackish tips, much shorter than the disk ; rays long, 
 bright purple ; achenia somewhat hairy. Gray's Peak, Dr. Smith. 
 Twin Lakes, Weston's Pass, and Horse Shoe Mountain, at 11,000 feet 
 altitude, Coulter. 
 
 ASTER ELEGANS, T. & G., var. ENGELMANNI, D. C. Eaton. (A. Engel- 
 manni,, Gr. Sill. Jour. (N. S.) 33, p. 9.) Stems several from a short 
 creeping root-stock, 2-3 high, very leafy; leaves sessile, lower ones 
 oblong, obtuse, the upper ones larger, lanceolate and lance-ovate, often 
 3' long, nearly 2' wide, entire, scabrous on the margins, minutely 
 puberulent like the stem and roughened, obscurely 3-nerved and 
 feather- veined ; inflorescence corymbose, heads peduncled; involucres 
 turbinate-campanulate, 6"-10" wide; the scales ovate or oblong, 
 acute, puberuleut, the scarious margins densely lacerate-f ringed ; rays 
 8-12 in number. Sierra Madre Range, August, Coulter. 
 
 ASTER GLAUCUS, T. & G. Stems l-2 high, branching, leafy, erect; 
 lowest leaves scale-form, the others oblong-linear, closely sessile, 
 
58 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 1-nerved, l'-3' long, 3" -6" wide, pointed, smooth and glaucous, veins 
 prominently reticulated; heads in contracted corymbs; scales of the 
 involucre in 3 or 4 series, lacerate-fringed, outer ones oval, obtuse, gla- 
 brous, inner ones lanceolate, membranous, acute, purple-tinged, as long 
 as the disk; rays 14-17, purple or pinkish- white ; achenia smooth or 
 slightly pubescent. North Park, Hayden. Eagle River, Coulter. 
 
 ASTER PTARMICOIDES, T. & G. South Park, Canby. Garden of the 
 Gods, Porter. 
 
 ASTER ANGUSTUS, T. & G. Hall & Harbour, 291. 
 
 TowNSENDiA 1 SERTCEA, Hook. Steinless, from a. simple or much 
 branched caudex, l'-2' high; leaves spatulate-linear, silky-can escent, 
 acute, 1-nerved, 12 // -15 // long, erect, surrounding and partly concealing 
 the heads (8" long) which are sessile or on very short peduncles ; scales 
 of the involucre subulate-lanceolate, pubescent, green in the center, 
 purplish towards the tip; margins scarious, lacerate-ciliate; rays long; 
 narrow, not spreading; pappus of the disk white, about as long as the 
 corolla, pappus of the ray of several unequal subulate bristles, much 
 shorter than the achenium and 1 or 2 long ones (sometimes 9 or 10) simi- 
 lar to those of the disk flowers ; achenium hairy, hairs minutely capi- 
 tate. Hall & Harbour, 290. Canon City, Brandegee. 
 
 TOWNSENDIA GRANDIFLORA, Kutt. Strigose-canescent ; stems many, 
 from an annual root thickened at the summit, divaricately branched 
 from the base, central ones short, erect, the lateral decumbent 5'-10' 
 long, often proliferous ; leaves l'-2' long, somewhat succulent, linear- 
 lanceolate, acute, scattered, the uppermost bracteate at the base of the 
 heads; scales of the involucre lanceolate, subulate-acuminate, with 
 fimbriate-ciliolate margins, rays 25-30, pale lilac, with a short pappus 
 composed of lacerate-denticulate squainellge, very short; achenium 
 minutely hairy. Hall & Harbour, 289. Plains of the Platte, Coulter. 
 Colorado Springs, Porter; Redfield. 
 
 MACELER ANTHER A 2 (DIETERIA) PULVERULENTA, Nees. Canescently 
 puberulent; stems 3'-6' high, much branched from the base, branches 
 spreading, bearing few heads on rather naked branchlets ; lower leaves 
 lanceolate, spinulose-serrate, upper ones linear, becoming entire ; scales 
 of the hemispherical involucre linear or lance-linear, very acute, imbri- 
 
 1 TOWNSENDIA, Hook. Heads large ; the rose-colored or whitish rays in one series, 
 rather long, pistillate, sometimes infertile; disk-flowers perfect, with tubular obconic 
 5-toothed corollas. Branches of the style lanceolate, acutish, hairy towards the ends. 
 Involucres hemispherical or subglobose, of numerous rather large, imbricated and 
 appressed, scarious-margined, lacerate-fringed and often tinted scales. Achenia flat- 
 tene( , pubescent or hairy, 2-3 nerved. Pappus of numerous stout barbellate bristles, 
 that ( f the ray commonly shorter, or reduced in part or wholly to short subulate bris 
 ties < r little scales. Dwarf, stemless or branching, annual or perennial herbs, with 
 crowded, linear or spatulate, entire radical leaves. Natives of the mountainous regions 
 east of the Sierras, from the Saskatchewan to New Mexico. 
 
 -MACH.ERANTHERA, Nees. Heads many-flowered; the rays conspicuous, pistillate, 
 fertile, in one species neutral ; disk-flowers perfect, the corolla tubular, 5-toothed. In- 
 volucre ovoid-hemispherical, the scales imbricated in several series, oblong or linear, 
 with spreading or recurved herbaceous points. Receptacle flat, honeycombed, the 
 cells with toothed edges. Appendages of the style narrowly lanceolate, minutely 
 hirsute. Anthers said to have "cultriform appendages." Pappus of numerous very 
 unequal scabrous and rather rigid bristles ; that of the ray flowers somewhat shorter. 
 Achenia obovate-f usif orrn, slightly compressed, indistinctly striate, pubescent or silky. 
 Herbs annual, biennial, or perennial, with branching stems and piunatifid, toothed, or 
 even entire leaves. Genus very near to Aster, but may be easiest distinguished from 
 it by the unequal pappus of disk and ray. Consists of four species found in the region 
 extending from Oregon to Colorado and southward to Mexico. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 59 
 
 cated in about 3 series; rays numerous, pale purple or rose-color ; ap- 
 pendages of the style subulate ; achenia densely villose. South Park, 
 Canby ; Porter. 
 
 MACH^ERANTHERA CANESCENS, Gr. Minutely canescent with a soft 
 pubescence ; stem low, much branched, corymbose ; leaves linear, entire 
 or sparsely toothed towards the apex ; scales of the obovoid involucre 
 lanceolate, acute, imbricated in about 4 series, with slightly squarrose 
 tips ; rays 18-20. rather large, purplish-blue ; appendages of the style 
 subulate-lanceolate. T. & G., Fl. N. Am. 2, p. 101, under Dieteria, Nutt. 
 Exceedingly variable in its pubescence, inflorescence, size of the 
 heads, toothing of the leaves, and involucres. Georgetown, Dr. Smith. 
 
 Var. LATTFOLIA, Gr., PI. Wright. 2, p. 75. (Dieteria asteroides, Torr., in 
 Em. Rep., p. 142.) Scabrous pubescent or puberulent ; stems lS'-2 high ; 
 leaves oblong or lanceolate, sharply and rather coarsely toothed, broader 
 leaves 6 /7 -8 7/ wide; involucre hemispherical, scales linear, in several 
 series, with rather short, subulate, green, squarrose tips ; heads large, 
 variable in size. Foot-hills, near Denver, Porter. Georgetown, Dr. 
 Smith. Sierra Madre Kange, Coulter. 
 
 Var. ALPINA, Porter. Dwarf, 2'-3 7 high, puberulent; radical leaves 
 cuneate-spatulate, obtuse ; stems short, bearing 1-2 large heads, V in 
 diameter; scales of the involucre lance-linear, tips long, squarrose- 
 spreading, glandular-pubescent. Alpine. Parry, 1872. 
 
 MACH^ERANTHERA TANACETIFOLIA, Kees. (Dieteria coronopifolia, 
 Kutt. T. & G. Fl. N. Am. 2, p. 101.) Pubescent and somewhat viscid, 
 diffusely branched below, branches 6 / -12 / long, branchlets terminated 
 by single showy heads; radical and lower leaves bi-pmuatifid, petioled, 
 the upper pinnatifid with the segments toothed or incised ; scales of 
 the involucre nearly equal, in about 3 series, linear, with a short, ap- 
 pressed, somewhat cartilaginous base, and very long, acute, loose, spread- 
 ing, herbaceous tips ; rays about 20, large, reddish-purple ; appendages 
 of the style subulate ; pappus pale reddish-brown, copious, rather rigid ; 
 achenia obovate, many-striate, villous. Hall & Harbour, 285. Canon 
 City, Brandegee. Canby. Georgetown, Dr. Smith. Denver, Redfield. 
 
 DIPLOPAPPUS ERICOIDES, T. & G. Fl. N. Am. 2, p. 182. Strigosely 
 canescent ; stems 2'-6' high, branching from a suffrutescent base ; leaves 
 narrowly spatulate or linear, 2"-6" long, crowded, appressed or spread- 
 ing, rigid, mucronate, often bristle tipped, conspicuously ciliate ; heads 
 terminal on the ends of the strict branches, rather small; scales of the 
 involucre lanceolate-linear, in about 3 series, acute, 1-nerved, with scari- 
 ous margins ; rays rather short, white ; exterior pappus very minute ; 
 achenia pubescent. Hall & Harbour, 233. Canon City, Brandegee. 
 
 ERIGKERON CANADENSE, L. Near Canon City, Brandegee. Denver, 
 Dr. Smith; Coulter. 
 
 ERIGERON DIVARICATUM, MX. Xear Denver, Dr. Smith. 
 
 ERIOERON COMPOSITUM, Pursh. More or less canescently hirsute ; 
 stems 2 / -6 / high, several from a perennial root-stock, scape- like or with 
 a few leaves near the base, and one or two linear bracts higher up ; 
 leaves on long petioles, 1-3 times teruately divided or parted, lobes ob- 
 long-linear, obtuse ; scales of the involucre linear, in 2 rows, outer ones 
 herbaceous, inner ones scarious with narrow margins and long slender 
 tips ; rays many, twice the length of the involucre ; white, pale-pink, 
 or blue ; achenia hirsute ; pappus of 12-15 bristles, with a few minute 
 setae intermixed. Hall & Harbour, 234. Gray's Peak, B. H. Smith. 
 
60 SYNOPSIS OF THE FLORA OF COLOKADO. 
 
 Summit of Pike's Peak, Porter. Snow Mass Mountain, at 13,000 feet 
 altitude, Mount Lincoln at 12,000 feet, and Long's Peak, Coulter. Sangre 
 de Cristo Pass, Brandegee. Gray's Peak, Redfield. 
 
 ERIGERON TRIFIDUM, Hook. Fl. Bor.-Am. 2, p. 17, 1. 120. Hirsute ; 
 stems 2 / -3 / high, leafy below, naked or scape-like with 1-2 linear bracts, 
 bearing a single head ; leaves on long petioles, deeply 3-cleft or lobed, 
 segments short, very obtuse, the middle one orbicular, the lateral occa- 
 sionally 2-lobed; scales of the involucre lance-linear, hirsute, about the 
 length of the disk ; rays twice as long, white or blue, rather broad ; 
 achenium minutely hairy; pappus hispid-scabrous, as long as the disk 
 of the corolla. Alpine. White House Mountain, at 13,000 feet altitude, 
 Coulter. 
 
 ERIGERON TJNIFLORUM, L. Sparsely pubescent, becoming somewhat 
 glabrous ; stem 3'-6' high, bearing a single head ; lower leaves spatu- 
 late, cauline lanceolate or linear, obtuse or acute, entire ; pistillate flow- 
 ers nearly all ligulate; rays somewhat erect, scarcely twice the length of 
 the very woolly involucre; wool deep-purple or sometimes light-colored, 
 or white. Hall & Harbour, 243. Snow Mass Mountaiu, at 13,000 feet 
 altitude, and Mount Lincoln, at 12,000 feet, Coulter. 
 
 ERIGERON GRANDIFLORUM, Hook. Perennial, hirsute and somewhat 
 woolly ; caudex thick ; stems 1-5, 3' -8' high, rather leafy, bearing a 
 single head; radical leaves oblong-spatulate, l'-2'- long, 2" -3" wide, 
 those of the. stem smaller and linear-lanceolate; heads solitary, large ; 
 involucre very woolly; scales herbaceous, elongated, with naked purple 
 tips ; rays numerous, long, white or purple ; achenia sparingly hirsute ; 
 pappus of barbellate setae rather shorter than the disk corollas, and 
 with a few very short ones intermixed. Mount Lincoln, at 12,000 feet alti- 
 tude, July, Coulter. 
 
 Yar. ELATIUS, Gr. Sill. Jour. (N. S.) 33, p. 8. l-2 high, very leafy, 
 pilose; lower leaves oblong-lanceolate, tapering to the base; all the 
 leaves scabrous-pubescent, mucronate-apiculate ; upper ones ovate and 
 ovate-lanceolate, or sometimes narrowly lanceolate, sessile by a some- 
 what clasping base ; heads solitary or corymbose, 2-6, large ; involucre 
 often I 7 broad, densely woolly; rays numerous, narrow, pale-pink. Dif- 
 fers so much from the typical form that it might well constitute a dis- 
 tinct species. Hall & Harbour, 238 ; Dr. Smith. Weston's Pass and 
 Sierra Madre Range, Coulter. 
 
 ERIGERON GLANDULOSUM, Porter, (n. sp.) Minutely glandular-puber- 
 uleut, and hirsute with long, scattered, spreading, jointed hairs ; stems 
 simple, one or several from a thick, woody, often branched caudex, bear- 
 ing single heads ; leaves narrowly spatulate, radical ones 2 / -4 / long ; 
 heads, including the numerous purple or blue rays, 9"-15" broad ; scales 
 of the involucre in about 3 series, equaling the disk, lance-linear, inner 
 ones scarious, more or less purplish ; achenia sparingly hirsute ; pappus 
 with shorter bristles intermixed with the longer ones.-*-Near E. ursinum, 
 Eaton, in King's Rep., v. 5, p. 148. Hall & Harbour, 235. Clear Creek 
 Canon, Boulder Cation, and Twin Lakes, Coulter. 
 
 ERIGERON ARMERL^FOLIUM, Turcz. Gray, Proc. Am. Acad. v. 8, p. 
 648. Hall & Harbour, 232, (as E. acre, L.) South Park, Porter. 
 Twin Lakes and on the Upper Arkansas, Coulter. 
 
 ERIGERON BELLIDIASTRUM, Eutt. Annual, hirsute-pubescent, 1 or 
 more high ; stem corymbosely much branched, leafy throughout ; 
 branches elongated and divaricately spreading; lower leaves on slender 
 
SYNOPSIS OF THE FLORA OF COLORADO. 61 
 
 petioles, entire and oblanceolate, canline ones sessile, smaller, oblong- 
 linear or linear-spatulate ; heads few or many, rather small, terminating 
 the branches, pedunculate; involucre hirsute-can escent; rays very 
 many (60-70,) white or pale-red, narrowly linear, twice as long as the 
 involucre; achenium minutely pubescent; pappus simple and wholly 
 deciduous from a broad and white epigynous disk. Plains and moun- 
 tains. South Park, Canby. Colorado Springs, Porter. 
 
 ERIGERON MACRANTHUM, Nutt. Pubescent or nearly smooth ; stems 
 9'-30' high, several from a creeping rhizoma, leafy to the summit; leaves 
 smooth or hairy, ciliate on the margins, obtuse, acute or acuminate, 
 inucroimlate, entire, the lowest oblong-spatulate, tapering into a petiole, 
 2 / -4' long, 6" -8" wide, the upper oblong or broadly ovate lanceolate, 
 3-nerved, the lateral nerves starting from the base, partly clasping; 
 heads several, 3-13, corymbose, sometimes very large; involucre of many 
 very narrow-linear, acuminate, herbaceous, glabrous or glandular scales, 
 which are sometimes pubescent; rays blue or purple, numerous; achenia 
 2-3 nerved, slightly hairy; outer pappus of short, slender set*. Varies 
 greatly as to the amount of pubescence. South Park and Chiaun Canon, 
 Porter. Pike's Peak and mountains west of Denver, Canby. Twin Lakes 
 and in the Sierra Madre Range, Coulter. 
 
 ERIGERON GLABELLUM, Nutt. Pubescent or nearly glabrous; stems 
 9'-20' high, single or few from a short erect caudex, simple or sparingly 
 corymbose at the summit; radical leaves narrowly or broadly spatulate, 
 tapering into a long or short petiole, sometimes serrate or incisely 
 toothed; lower cauline ones oblong, lanceolate, tapering into long, mar- 
 gined petioles, the upper ones scattered, lanceolate or linear, sessile and 
 partly clasping; heads few, large, 10"-15" broad, on long, strict peduncles 
 which are enlarged above; rays very narrow and numerous; involucre 
 hirsute or nearly smooth ; achenium and pappus as in the last. Hall 
 & Harbour, 240. Canon City, Brandegee. Gray's Peak, Dr. Smith. 
 
 ERIGERON COTJLTERI. Porter, (n. sp.) Stem simple from a slender root, 
 6'-12 / high, bearing a single head, smooth below, pilose-pubescent above, 
 leafy to the top; leaves thinnish, pubescent with ciliate margins, all 
 more or less serrate-denticulate, mucronate, erect, gradually diminishing 
 in size upward; lower ones oblong-spatulate or elliptical, tapering into a 
 margined, ciliate petiole, upper ones oblong or lanceolate, acute or acumi- 
 nate, sessile and partly clasping; head large, l'-2' broad including the 
 numerous white rays; involucre about 9" broad, hemispherical, densely 
 pilose but scarcely woolly; scales lance-linear, with scarious margins, tips 
 elongated, subulate, spreading, glandular; achenia pubescent; bristles 
 of the pappus minutely scabrous, outer ones short and few; alveoli of 
 the receptacle rough, with lacerate margins. Weston's Pass, at 10,000 
 feet altitude, July 19, Coulter. 
 
 ERIGERON PUMILUM, Nutt. Very hirsute with spreading hairs, stems 
 6'-10' high, rather stout, numerous from an erect, branching caudex, 
 simple or sparingly branched, bearing 1-3 peduncled heads, leafy; lower 
 leaves linear-spatulate, 2'-2' long, l"-3" wide, upper ones narrowly 
 linear, passing into subulate "bracts; heads 9 // -12' / broad; scales of the 
 involucre numerous, nearly linear, hirsute; rays white, 30 of them, 1' 
 wide, twice or nearly three times as long as the involucre; achenia 
 slightly hairy; outer pappus of minute subulate bristles. Upper Arkan- 
 sas, Porter. Saint Vrain Eiver, Coulter. 
 
 ERIGERON DIVERGENS, T. & G. Somewhat hoary with a minute hir- 
 sute pubeseuce, diffusely branched from the base, branches ascending, 
 
62 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 4 / -12 / long; leaves small, entire, acute, the radical somewhat spatulato, 
 narrowed into a short petiole, the cauline scattered, sessile, linear, nar- 
 rowed at the base; heads small, mostly solitary, terminating the naked 
 branchlets or peduncles; rays very narrow and numerous, twice the 
 length of the hirsute involucre, purplish ; inner pappus of few, very 
 slender and deciduous bristles. Hall & Harbour, 237 and 246; Hoope*. 
 Chicago Lakes, at 12,000 feet altitude, Coulter. Brandegee; Dr. 8tnith. 
 Colorado Springs, Porter. 
 
 ERIGERON CANUM, Gr., PI. Fendl., p. 67. Stems 3'-4' high, simple? 
 leafy to the summit, from a thick root, caespitose, bearing single heads, 
 silky-canescent as well as the very entire, Imear-spatulate leaves; rays 
 white, in about one series, twice longer than the white-hirsute involucre; 
 achenia very glabrous, narrow, with about 10 conspicuous ribs; pappus 
 of the ray and disk similar, double, the outer of very short subulate 
 setaceous bristles. "Common on low mountains," Hall & Harbour, 244 
 (as E. ccespitosum, ^N"utt.) 
 
 GuTiERREZiA 1 EuTHAMi^E, T. & G. Stems woody and much branched 
 at the base, numerous, 6'-15' high, angled, leaves crowded, narrowly 
 linear, acute, attenuate at the base, l'-2' long, J"-l" wide, 1-nerved, 
 scabrous, punctate, resinous and sometimes varnished; corymb com- 
 pound, fastigiate, contracted; heads small, glomerate, turbhiate-cylin- 
 drical; involucre scarcely 2" long and I" broad, narrowly obovate; 
 flowers of the ray 2-5, the disk 3-6; pappus of 9-10 obtuse, unequal, 
 erose-denticulate, chaffy scales, a little shorter than the achenium. 
 Hall & Harbour, 294. Caiiou City, Brandegee. Near Denver, Dr. Smith. 
 Canby. 
 
 SOLIDAGrO VlRGA-AUREA, L., var. MULTIRADIATA, T. & G. Stems vil- 
 
 lose- pubescent especially towards the summit, most 1 v .simple, S'-15' high ; 
 leaves ciliate, oblong-lanceolate; radical ones obovate and narrowed 
 into a petiole; heads large, in a dense compound raceme or loosely 
 corymbose; scales of the involucre ciliolate, acute; rays 8-18. Hall A- 
 Harbour, 251. Sierra Madre Eange and Twin Lakes, Coulter. George- 
 town, Dr. Smith. 
 
 Var. ALPINA, Big. Gray's Peak, Dr. Smith. South Park, Twin Lake 
 Creek and Horse Shoe Mountain, at 11,000 feet altitude, Coulter. 
 
 Var. HTJMILIS, Gr. (8. humilis, Pursh.) Sierra Madre Range, Coulter- 
 
 SOLID AGO GUIRADONIS, Gr., Proc. Am. Ac., v. 6, p. 54.3. Smooth, stem 
 slender, erect, 2-3 high, from a woody rhizoma; lowest leaves 
 lanceolate, 6' long, 3"-5" broad, tapering into a margined petiole, the 
 cauline ones very narrowly linear, 2'-3' long, 3"-5" broad : panicle -ivrt, 
 not one-sided, very narrow and composed of fe\v and rather small 
 heads; involucral scales, linear, acuminate, the mid vein broad and 
 
 1 GUTIERREZIA, Lagasca. Heads small or middle-sized, 6-90 flowered ; the rays pistil- 
 late, fertile ; the disk-flowers tubular, perfect and fertile. Involucre varying from nar- 
 rpwly-obconic to broadly-hemispherical ; the scales closely imbricated in several series, 
 rigid, and with greenish herbaceous tips. Receptacle naked. Corolla* yellow ; of the 
 ray oval, oblong or linear; of the disk fnnnel-shaped, 5-toothed. the teeth erect or re- 
 curved. Branches of the style in the ray-flower, linear. smooth : the stigmatic lines 
 extending to the top; in the disk with the' hairy appendages shorter or >. \ eral times 
 longer than the stigmatic portion. Achenia oblong or ohconi' . terete or somewhat 
 compressed. Pappus of the disk composed of several oblong or linear chatty scales, or 
 reduced to a lacerate i-oioniform bonier; of the ray similar to that of the disk, bat 
 commonly smaller or sometimes obsolete. Mostly perennial and suti'ruti<-o>.c- plants of 
 North and South America, with glabrous and often resinous-dotted or varnished linear 
 and entire, or broader and denticulate leaves. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 63 
 
 prominent : rays S-9, scarcely longer than the 10-12 flowers of the disk ; 
 achenia pubertdeut. 
 
 Var. SPECTABILIS. D. C. Eaton, King's Rep., v. 5, p. 154. Stem stout, 
 3 : -4 high; lower and radical leaves broadly oblanceolate, S'-ii:' ioug, 
 $'-Ut' wide, the petiole dilated at the base, upper ones sessil ', lanceo- 
 late : panicle oblong, densely many-flowered ; heads rather large, invo- 
 lucral scales oblong-linear, mostly obtuse; flowers of the ray 12-15, of 
 the disk about 20. The affinities of this plant seem to us to connect it 
 rather with S. speciosa than S. Guiradonis. Glen Eyrie, Porter. Canon 
 City. Brandegee. 
 
 SOLIDAGO PUAIILA. T. & G. Caespitose, glabrous and somewhat 
 resinous : stems 4'-9' high, very many from a stout underground woody 
 caudex; leaves crowded, narrowly lanceolate, strongly 3-nerved, very 
 acute and somewhat mucrouate, the radical ones 2 / -3 / long, 2"-3" wide, 
 narrowed into a short petiole ; heads sessile in little clusters, which are 
 arranged in a dense fastigiate corymb ; involucres cylindrical-oblong, 
 the closely imbricated scales cariuate, ovate or oblong, obtuse, with 
 scarions margins and appressed, scarcely herbaceous tips, rather obtuse ; 
 rays 1-3 ; disk flowers 3-4 ; achenia glabrous. Colorado, Vasey. 
 
 SOLIDAGO RIGTDA. L., var. HU3HLIS, Porter. Stems 12 / -18 / high, slen- 
 der; cauline leaves oblong-lanceolate, mostly acute, very scabrous; 
 heads of flowers smaller ; scales of the involucres narrower. Rather 
 frequent. Wet Mountain Valley, Brandegee. Porter ; Coulter, ^"ear 
 Denver. Dr. Smith. 
 
 SOLIDAGO XE^IOEALTS, Ait. Very variable, presenting in the Eocky 
 Mountain region a great diversity of forms, among which the most 
 conspicuous is 
 
 Var. MOLLIS, Bartl. (!) FL X. Am., v. 1, p. 229. Stem-leaves obovate or 
 oval, crowded, oil en 2'-2 / long, I'-IJ' broad; low, about 1 high, rather 
 stout: branches of the panicle much contracted or somewhat spreading; 
 heads rather larger. Platte River near Denver, Dr. Smith. Twin Lakes , 
 Coulter. 
 
 SOLIDAGO MISSOURIENSIS. Xutt. Hall & Harbour, 249. Eastern 
 plains of Colorado, Dr. Smith. Near Denver, Porter. 
 
 SOLIDAGO CA^ADE>*SIS, L. Wet Mountain Valley, Brandegee. Eagle 
 River. Coulter. 
 
 SOLIDAGO LA^CEOLATA, T. G. Hall & Harbour, 247. Canon City, 
 Brandegee. On the Platte, Dr. Smith. 
 
 SOLIDAGO OCCIDENTALS. T. & G. Very near the last, but differs 
 in its more paniculate and less corymbose inflorescence ; flowering 
 branches more strict, with the upper leaves becoming very small and 
 linear: heads of tiowers pedicellate ; scales of the involucre loosely im- 
 bricated. Some of its forms, however, appear to approach S. lanceolata 
 too closely. Georgetown. Dr. Smith. 
 
 BiGELOViA 1 HOWABDH, Gr., Proc. Am. Acad., v. 8. p. 641 (Linosyris How- 
 
 'BIGELOVIA. DC. (Li.no9}fns. Lobel., CJirysothamnus, Xutt.) Heads 5-many-flow- 
 ered, the (yellow ) flowers all tubular and perfect. Involucre obconic or eanipauulate ; 
 the somewhat rigid and cariiiate scales imbricated in several series: the innermost 
 elongated: the outer ones shorter and passing into the leaves. Eeceptacle alveolate- 
 toothed, the teeth lacerate, or sometimes becoming cuspidate processes. Corollas 
 slender, the expanding limb 5-cleft. Style with flattened branches: the stigmatic 
 portion oblong or linear: the pubescent appendages lanceolate or often elongated. 
 Acheuia oblong, villous or pubescent, sometimes glabrous. Pappus of copious unequal 
 scabrous capillary bristles. Perennial herbs or surrrnticose plants, branched irorn the 
 base and corymbose or sub-pan icnlate at the summit, often resinous and having a 
 strong balsamic but unpleasant odor: leaves linear or lanceolate, sessile. 
 
64 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ardii, Parry, Proc. Amer. Acad,, v. 6, p. 541.) Shrubby, 6'-18' high ; younger 
 branches white- woolly ; leaves linear, 1-uerved, from webby becoming 
 smooth, l'-2' long, the uppermost about as long as or exceeding the 
 corymbose, crowded heads ; involucre cylindrical, 5-6 flowered ; scales 
 rather loose, all of them finely acuminate; tube of the pale yellow 
 corolla sparingly villous ; achenia linear, pubescent. Parry. Wet Moun- 
 tain Valley, Brandegee. 
 
 BIGELOVIA PARRYI, Gr., Proc. Am. Acad., v. 8, p. 642. (Linosyris 
 Parryi, Gr. Proc. Acad. Phil. March 1863, p. 66.) Shrubby, 9'-18' high ; 
 branches virgate, white woolly, becoming smooth; leaves 2'-4' long, lin- 
 ear, almost glabrous, sub viscous, 3-nerved, acute, plane, larger ones 2" 
 wide and tapering to the base ; floral leaves similar, far surpassing the 
 heads which are crowded in a narrow thyrsus ; heads about 9" long, ib- 
 liose-bracteate ; involucre 10-15 flowered, cylindraceous, series few, scales 
 sublax, imbricate, whitish, lanceolate, all attenuate acuminate ; tube of 
 the corolla hirsutulous ; achenia linear, hoary-pubescent. Hall & Har- 
 bour, 293 ; Parry, 413; Canby. Mount Elbert near Twin Lakes, at 10,000 
 feet altitude, Coulter. 
 
 BIGELOVIA BIGELOVII, Gr., Proc. Am. Ac., v. 8, p. 642. (Linosyris 
 Bigelovii, Gr., in Bot. Whippl. 42, 1. 12.) Subcinereous, woody, very much 
 branched, 2 high and more; branches rigid, slender, broom-like, younger 
 ones whitened ; leaves revolute on the margins, filiform ; involucre 5-flow- 
 ered, narrow, scales chartaceous, of the same color, moderately carinate, 
 appressed, outer ones oblong-lanceolate, woolly-ciliate, rather acute, inner 
 ones narrower, often acuminate ; limb of the corolla narrow, shortly 
 5-lobed; bristles of the pappus scarcely rigid, longer than the corolla; ap- 
 pendages of the style elongate-subulate or filiform, hispidulous, mostly 
 longer than the linear stiginatic portion ; achenia very glabrous, linear, 
 4-6 angled, with a broad epigynous disk. Wet Mountain Valley, Bran- 
 degee. The specimens vary from the typical form in their smaller heads 
 and more spreading scales of the involucre. 
 
 BIGELOVIA DEPRESSA, Gr., Proc. Am. Acad., v. 8, p. 643. (Chrysotham- 
 nus depressus, Nutt ; PL Gamb., p. 171. Linosyris depressa, Torr., Sit- 
 greaves 1 Rep.,\). 161.) Glabrous, woody; branches a span high from a 
 decumbent base; leaves lanceolate or oblauceolate, inucronate-aeute, 
 short, 6" long, rigid ; scales of the involucre elongated-lanceolate, gradu- 
 ally acuminate, smooth, chartaceous, of the same color ; lobes of the 
 corolla short; bristles of the pappus rigid, longer than the corolla; 
 achenia very smooth, 4-6-augled, with a broad epigynous disk. Col- 
 lected by Parry in the Sangre de Gristo Eauge. 
 
 BIGELOVIA GRAVEOLENS, Gr., Proc. Am. Acad., v. 8, p. 644. (Linosy- 
 ris graveolens, T. & G., Fl. N. Am., 2, p. 234.) Shrubby, very much 
 branched, l-4 high, branches pulverulent-tornentose, whitish, some- 
 times smooth and greenish; leaves narrowly linear, not punctate, broader 
 ones 3-nerved, narrower ones 1-uerved, if -2' long, J"-l" wide; heads 
 large, 5 flowered, clustered, corymbose or panicled ; involucre oblong, 4" 
 long,!" wide, scales few, imbricated in about 3-series, glabrous, 5-ranked, 
 cariuate, outer ones Very short, innermost linear, half as long as the bril- 
 liant yellow flowers ; appendages of the style linear-subulate, longer than 
 the stigma-tic portion ; pappus of very fine soft bristles nearly as long as 
 the corolla ; achenia hairy. Hall & Harbour, 292. Canon City, Bran- 
 degee. Canby. Denver, Dr. Smith. On the Platte, Coulter. 
 
 BiGELOViADouGLASii, Gr., 1. c., p. 645. ( Linosyris mscidiflora, T. & G. 
 I. c.) Shrubby, densely branching, 1 high, older branches with gray 
 bark, younger ones smooth, slightly angled; leaves narrowly or broadly 
 
SYNOPSIS OF THE FLORA OF COLORADO. (NJ 
 
 linear or lanceolate, rigid, 8"-12" long, glabrous, or slightly scabrous 
 on the margins ; heads small, 5-6-flowered, clustered in dense flat co- 
 rymbs; involucre 2"-3" long, obcouic, of loosely imbricated, glab- 
 rous, sometimes resinous or glutinous, oblong-linear, obtuse scales, the 
 outer ones very short ; corolla at first scarcely exserted, but as the aehe- 
 nium grows it considerably exceeds the involucre; style as in the last; 
 achenia hairy ; pappus of rather rigid and scabrous setae. 
 
 Var. STENOPHYLLA, Gr., 1. c., p. 64G. Leaves very narrowly linear or 
 filiform ; heads 3-5-flowered. Wet Mountain Valley, Erandegee. 
 
 Var. LATIFOLIA, Gr., /. c., p. 646. ( Linosyris vixcidiflora, var. latifolia, 
 Eaton in King's Rep. 5, p. 157.) Leaves oblong, I'-l-J' ioiig,o"-G" wide. 
 North Park, Dr. Haijdtn. 
 
 Var. SEKKULATA, Gr., I. c., p. 64(>. (Linoxyris xerrulata, Torr. in Stansb. 
 Rep., p. 389.) Margins of the leaves ciliate or minutely serrulate, with very 
 short rigid bristles, otherwise nearly glabrous. Hall & Harbour, 295. 
 South Park, Canby ; Porter. Upper Arkansas, Coulter. Wet Moun- 
 tain Valley, Brandegee. 
 
 Var. TORTIFOLIA, Gr., 1. c., p. 646. Like the preceding, bnt the leaves 
 spirally twisted. Bather common. Upper Arkansas, Porter. South 
 Park, Coulter. Wet Mountain A" alley, Brandegee. 
 
 A PLO PAPPUS 1 RUBIGINOSTJS, T. & G. Viscidly pubescent and cine- 
 reous; stems erect or decumbent, corymbosely branched, lO'-lS' high; 
 leaves lanceolate or narrowly oblong, laciuiate-incised, the divaricate 
 teeth produced into pellucid bristles; heads subglobose, few or many, 
 corymbose, terminating the leafy branches, often bracteate ; scales of 
 the involucre linear, acute, bristle tipped, viscidly-puberulent, in about 
 2 series, nearly equal, loose, at length spreading; alveoli of the recep- 
 tacle pilose-fimbriate ; achenia turbinate, densely silky -villous; pap- 
 pus reddish brown. Platte River, near Denver, Dr. Smith. Hull & Har- 
 bour, 287. 
 
 APLOPAPPUS SPINULOSUS, DC. Herbaceous, canesceut with a soft, 
 minute, woolly pubescence; stems many, l-2 high, corymbosely 
 branched above; leaves small, 9 // -12 // long, rigid, pinnately or some- 
 what bi-piunateiy parted, segments short, linear-subulate, 'mucronate 
 with a short bristle; heads small, subglobose, terminating the numer- 
 ous branchlets ; involucre shorter than the disk, scales subulate-lanceo- 
 late, mucroimlate, imbricated in 3-4 series, appressed, eauescent; rays 
 20-30; corolla of the disk with very short teeth ; pappus pale or tawny, 
 shortj very unequal; achenia turbinate, villous. Canon City, Brande- 
 gee. Plains near Denver, Dr. Smith. Hall < Harlonr, 288; Canby. 
 Colorado Springs, Red field. 
 
 i's. I'ass. (Maeronema f Ericameria, Menotnx, Ixopapputt, Aplopappus, Pyrro 
 coma and Prionopsis of Torrey & Gray's J-Vo/'rt.) Heads few-many-flowered; ray-Ho\vors 
 3-maiiy, pistillate, fertile; those of 'the disk tubular, perfeet, generally fertile, invo- 
 lucre cylindrical, turbiuate, campanulate, or hemispherical; the scales imbricated in 
 few-several series, from linear-subulate varying to broadly oval, with or without folia- 
 ccous tips; the outer ones sometimes smallest, sometimes very lar^e and leaf-like. 
 hVceptaele Hat, alveolate. Corolla of the disk funnel-shaped, or slightly dilated nit- 
 ward. 5-toothed. (Style of the disk flowers with the branches flattened, sometimes 
 broadly lanceolate, but more frequently much elongated, the subulate hispid appen- 
 dages much longer than the stigmatic portion. Achenia oblong or linear, mostly terete 
 01- turbinate, villous or pubescent, rarely glabrous. Pappus simple, white or brownish : 
 of copious, mostly unequal scabrous, somewhat rigid or soft capillary bristles. Peren- 
 nial herbs or surfrutii-ose plants, with entire or pinnately -toothed or serrate leaves: 
 the heads often large and solitary, but sometimes smaller and corymbose or somewhat 
 panieled. Natives of Western North America and parts of South America : the flowers 
 always yellow, but showing great diversity in the size of the heads and in the rays, 
 styles, pappus, etc. The few rayless species are not easily separated from Linosyri*. 
 
 5 F 
 
(Hi SYNOPSIS OF THE FLORA OF COLORADO. 
 
 APLOPAPPUS MA cm >N mi A , ( 1 r., Proc. Am. A cad., v. 0, p. 541*. ( Macro- 
 nema dittcoidea, Nutt.) Branches erect from a woody base, 0'-9' high, terete, 
 white- to mentose ; leaves spatulate-oblong, obtuse, apiculate, 8"-12"long, 
 2"-3 // wide, obscurely 3-nerved, minutely glandular and scabrous; heads 
 single or few in a corymb, turbiuate; scales of the involucrefew, sub-equal, 
 broadly lanceolate, glandular, the outer ones more or less herbaceous ; 
 heads- about 25-flowered; rays none; branches of the style very long, 
 filiform, much exserted, the hispid portion twice as long as the stigmatic ; 
 achenia pubescent. Hall (( Harbour, 290. Twin Lakes and Sierra Ma- 
 dre Range, Coulter. 
 
 APLOPAPPUS PYCKMLKUS, Or. (titenotux pyama'nx, T. & G. FL 3 T . Am. 
 2, p. 2.37.) Stems l'-2' high from a branching caudex, 1-flowered ; radical 
 leaves oblong-spatulate, I'-IJ' long, obtuse, somewhat 3-nerved, fimbri- 
 ate-ciliate; cauliue leaves 3^-4; head braeteate; outer scales of the 
 involucre foliaceous, oblong, or broadly obovate, very obtuse, pubes- 
 cent, inner ones oblong, rather acute, tinged with purple ; rays 12-10, 
 shorter than the scales of the involucre ; achenium pubescent. Alpine. 
 Hall & Harbour, 250. La Plata Mountain, at 14,000 feet altitude, Coulter. 
 Sangre de Cristo Pass, Brandegec. Gray's Peak. Dr. timith; Meehan. 
 
 APC.OPAPPUS LYALLT, Gr., Proc. Am. Acad., March, 1803, p. 04. Note. 
 Pruinose-glandular throughout; stems 2'-3' high, leafy, monocephalous: 
 leaves very entire, sub-membranous, generally inucronate; radical 
 and lower' ones oblong-spatulate or oblauceolate, attenuate at the 
 base, uppermost lanceolate ; scales of the involucre loosely imbricated 
 in about 3 series, lanceolate, of nearly equal length, inner ones 
 acuminate with red tips, glaudulose-puberulent ; ligules 10-20, linear, 
 rather long; achenia almost linear, very glabrous ; hairs of the pappus 
 white, rather rigid, equaling the corolla of the disk. Alpine. Parry, 
 1873. 
 
 APLOPAPPUS INULOIDES, T. G. Tomentose-woolly throughout, the 
 pubescence mostly persistent; stems branching from a woody caudex, 
 ascending, 4'-7' long ; radical leaves lanceolate, acute, tapering to the 
 base, entire, cauline ones lanceolate or oblong-lanceolate, sessile, partly 
 clasping; heads solitary, large ; involucre about 1 ; in diameter, scales 
 in several series, oblong, obtuse or acute, pubescent or woolly ; rays 
 very numerous, scarcely twice the length of the involucral scales, deep 
 yellow; achenia hairy. Subalpine. ffall& Harbour, 155. Sierra Mad re 
 Range, Coulter. 
 
 APLOPAPPUS CROCEITS, Gr., Proc. Am. Acad., Mar., 1803, p. Or>. Xote. 
 Stem l-li high, sparingly leaved, monocephalous, at first woolly; 
 leaves coriaceous, glabrous, very entire, not conspicuously reticulated: 
 radical ones oblong-lanceolate, with the petiole O'-l long, cauliue lan- 
 ceolate or oblong, partly clasping at base; head naked, very large; in- 
 volucre hemispherical, 1' in diameter; scales oval, very obtuse, inner 
 ones somewhat erose-scabrous on the margin ; rays 50 or more, much 
 exserted, nearly 1' long, saffron -colored above; ovaries short, very 
 smooth ; pappus whitish, equaling the corolla of the disk. Subalpine. 
 Hall & Harbour, 257. Middle Park and Sierra Madre Range. Coulter. 
 
 APLOPAPPUS FREMONTIT, Gr., Jour. Bout. Xat. Hist. /SV., v. 5. 
 Glabrous; stems erect or ascending from a woody base, / -12 / high. 
 corynibosely branched above, leafy ; leaves oblong, or linear-oblong, ses- 
 sile, partly clasping at the base, acute with a mucrouate tip, entire or oc- 
 casionally somewhat denticulate; lower ones 2 / -2 / long, W-l" wide, 
 tapering to the base; upper ones clasping by a broad base; heads termi- 
 nating the leafy branches, globose, about V in diameter; scales of the 
 
SYNOPSIS OF THE FLORA OF COLORADO. 67 
 
 involucre in 3-4 series, lance-ovate, with acuminate, spiny tips, some- 
 wbat villous -pubescent, with narrow, scarions margins; rays 6"-8"long, 
 lance-ovate, yellow ; pappus a little shorter than the corolla and rather 
 longer than the very smooth acheniurn. " Low Mountains, lat. 39, w 
 Hall ct> Harbour, 258." Canon City, Brandegee. Meelian. 
 
 APLOPAPPUS PARRYI, Gr. Stems 1-3 from a branching caudex, 
 subviscoits-puberulent above, 12'-1(>' high ; leaves almost glabrous, 
 very entire, lower ones oblanceolate or spatulate, tapering to the base, 
 obtuse, the others acute, upper ones broader at the base, partly clasp- 
 ing; heads numerous, corymbed, on short pedicels; scales of the cam- 
 pauulate involucre broad lanceolate, somewhat coriaceous, with some- 
 what leafy tips, loose; rays 15-20, small, yellow, narrowly-linear, but 
 little longer than the disk flowers; pappus white, not rigid. Hall <r 
 Harbour, 259 ; Parry; Canby. Chiann Canon, Porter. Twin Lakes and 
 Sierra Madre Range, Coulter. 
 
 GRODELIA 1 SQUARROSA, Dinial. Glabrous and viscidly resinous: 
 sterns herbaceous from a perennial caudex, 1 to 2 high, corymbosely 
 branched above; leaves somewhat rigid, glaucous and punctate, radical 
 ones spatulate-lanceolate, narrowed into a petiole, dentate or incised, 
 cauline mostly oblong, sessile and partly clasping, rather obtuse, finely 
 toothed or spinulose-serrate; heads numerous, subglobose, 6" broad; the 
 scales very rigid, close-appressed, but with very long re flexed, squarrose, 
 subulate points, resinous; rays numerous, rather narrow: pappus of 2-4 
 very rigid, deciduous bristles or awns. Very common on the plains. 
 Hall <1> Harbour, 286. Denver, Dr. Smith. Colorado Springs. Porter. 
 B. H. Smith. On the Platte, Coulter. 
 
 CHRYSOPSIS YILLOSA, Xutt. Extremely variable in tin 4 si/e and shape 
 of the leaves, in the number of the flower-heads, and in the kind and 
 amount of pubescence. It includes several nominal species. Common 
 everywhere at all elevations. Hall & Harbour r , 260; J)r. Smith; B. 
 H. Smith; Canby; Porter; Brandegee; Coulter. 
 
 CONYZA 2 COTJLTERI, Gr., Proc. Am. Aca<L, v. 7,^ p. 355. (C. xub- 
 decurrens, Gr., PL FendL. p. 78, and PL Wright, 1, p. 102, non I>C.) Softly 
 viscous-pubescent; stem 1 to 2 high, with strict branches, leafy to the 
 top; leaves adnate, sessile, linear-oblong or the lower spatulate, numer- 
 ous, pinnatifid-dentate or incised; panicle crowded, virgate? heads small, 
 li"long; involucre shorter than the disk, scales hairy- viscous, linear, 
 acute. Canon City, Brandegee. 
 
 BACCHARIS SALICINA, T. & G. FL X. Am. 2, p. 258. Shrubby, 
 smooth, branches angular; leaves mostly oblong-lanceolate, about I 7 
 
 1 GKIXDKLIA, AYilld. Heads many-flowered : the ray-flowers generally present, pis- 
 tillate, the ligyle elongated ; disk-flowers ]>erfect. tlie corolla tubular-fnnnel-sha}ie(l. 
 5-toothed. Involucre sub<iloloso or hemispherical, the scales imbricated in niauyro\vs. 
 often Avith squarrose tips. Keeeptacle naked, flat, t'oveolafe. Style with lanceolate. 
 his])id appendages as long' as the sti^matic portion. Achenium smooth, ohlong, or 
 ovate, somewhat angled. PappOB of 2-8 smooth rigid, deciduous awns, shorter tlum 
 the disk-corollas. IJiennial (?) perennial or sunruticose, oftt.-n resiniferous, Mexican 
 and North American plants. Leaves entire or serrate, often punctate, the cauline ones 
 sessile. Heads corymbed at the ends of the branches, or solitary, mostly rather large. 
 
 - CONY/A. Heads many-flowered, momec-ions; the exterior pistillate and fertile, in 
 many series, with a filiform truncate or 2-3 toothed corolla: a few of the central 
 Mowers staminate. sterile, but often styliferous or even fertile, with a tubular 5-toothed 
 corolla. Scales of the involucre in several series. Keceptacle Mat or convex, punctaie 
 or nmbrillate. Achenia compressed, attenuate at base, usually glabrous. Pappus a 
 single series of capillary scarcely scabrous bristles. Chiefly tropical herbs, with 
 branching stems, and variously incised leaves. Heads peduncied. corymbose or pani- 
 culate. Flowers yellow. T. and fi.FJ. \. Am. 
 
68 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 long, the uppermost nearly linear, entire, viscid, more or less resimmsly 
 punctate ; heads clustered, mostly sessile ; scales of the involucre ovate, 
 with scarious margins, imbricated in about 3 series; achenia glabrous. 
 Near Canon City, Brandegee. Near Pueblo, Greene. 
 
 PERicoME 1 CAUDATA, Gr., PL Wright., 2, p. 82. Herb 3-4 high, much 
 branched, growing in large bunches; branches terete, striate, sparingly 
 puberulent or smooth; leaves on long petioles, membranaceous, 3-nerved 
 at base, dilated-triangular, or the upper hastate, long-acuminate, often 
 angulate-toothed below the middle, larger ones 3' broad and 4' long 
 including the. acuminatiori, which is l'-2' in length; heads in ter- 
 minal cymes or corymbs, on slender pedicels % long; involucre not brac- 
 teate, 3" long; scales narrowly-linear, 1-nerved, coalescent to near the 
 apex, free tips lauuginous-ciliate; corolla yellow, the slender tube vis- 
 cous-glandular; achenia 2" long, much compressed, margined all around 
 with a strong, callous nerve, bearded with hispid hairs. Grand Canon 
 of the Arkansas, Brandegee. Chiann Canon, Meehan. Ute Pass, Porter. 
 
 DiAPERiA 2 PROLIFERA, Nutt. Annual, erect, woolly; stems stout, 
 rigid, 2 / -5 / high, terminated by a capitate cluster J'-f in diameter in- 
 cluding a large number of small heads; some of the branches when 
 numerous arise from below and overtop this compressed head; leaves 
 spatulate-oblong or liuear-spatulate, numerous sessile, entire. Hall. 
 
 MELAMPODIUM 3 CINEREVM, D C. Prod., 5, p. 518. (M. leucantlium. T. 
 & G. Fl. N. Am.%, p. 271.) Sutiruticose, much branched at the base, G'-'l 0' 
 high, cinereous-pubescent; leaves very numerous, linear, the lower 
 linear-spatulate, obtuse, entire or obtusely sinuate-repand, about 1' long, 
 
 E, Gray, in PI. Wriylit., 2. Heads many flowered discoid ; involucre shorter 
 than the disk, campanulate. Scales in 1 series, about 20, linear, united among them- 
 selves by the very naiTow hyaline margins. Receptacle liattish, naked. Flowers all 
 hermaphrodite. Coroll astubular; the tube slender, viscous-glandular; throat cyliii- 
 draceous; teeth 4, ovate, spreading. Anthers exsert, sub-sagittate at base. Brandies 
 of the style filiform, slightly flattened, obtusish, minutely hairy on the outside above 
 and at the apex. Achenia linear-oblong, compressed, very smooth on the faces, 
 bearded-ciliate on the nerve-like margins. Pappus squamellse-eoroniform, fimbriate- 
 lacerate; the fmibria? similar to the strong hairs of the achenium. Tall, smooth, 
 branching herbs, Avith opposite leaves or the uppermost subalternate, triangular or 
 hastate, very long acuminate, slightly resinose-punctate, not glandular. Heads 
 cyrnose. Flowers yellow. 
 
 2 DiAPEEiA, Nutt, , Heads fusiform-oblong, disposed in sessile glomerules of 4-5 to- 
 gether, which are collected in large capitate and bracteate compound clusters ter- 
 minating the stem and simple or mostly proliferous branches; the fertile flowers 8-12, 
 pistillate, in the axils of the chaff of the receptacle, with a much attenuated filiform 
 truncate corolla; the 2-3 central staminate, with a tubular-infundibuliform minutely 
 4-toothed corolla, destitute of ovaries, each supported by a filiform stipe and inclosed 
 in a chaff of the receptacle. Scales of the involucre and the chaff of the small con- 
 vex receptacle scarious, oval, broad and large for the size of the head, closely and 
 somewhat distichonsly imbricated and wrapped around each other, the inner succes- 
 sively longer; the 2-3 innermost chartaeeous, attenuate at the base, woolly toward the 
 apex, each convolute and separately inclosing a sterile flower. Style in the sterile 
 flowers undivided; in the fertile with 2-filiform branches. Achenia obovoid-oblong, 
 obcom pressed, glabrous, destitute of pappus. T. fy G. FL JY. Ant. 
 
 3 MELAMPODIUM, L. Heads many-flowered; the ray-flowers 5-10, in a single seiies; 
 those of the disk sterile by the abortion of the style. Involucre double; the exteiior 
 of 3-5 flat and spreading foliaceous scales ; the inner as many as the ray-flowers and 
 inclosing their achenia. Receptacle convex or subulate-conical, chaffy; the chat!' 
 membranaceous, deciduous. Style in the sterile flowers undivided and hairy above. 
 Achenia of the disk abortive; of the ray obovoid, smooth, slightly curved, invested by 
 the inner scales of the involucre, which are often rugose or tiiberculate, or cucullate at 
 the summit, and either truncate or produced into 1-3 teeth or awns. Herbaceous or 
 suffruticose (chiefly Mexican) plants, with diohotomous stems, opposite sessile leaves, 
 and terminal or alar peduncles bearing a single head. Flowers vellow or white. T. f 
 G. FIX. Am. 
 
SYNOPSIS OF THE FLORA" 't>JP ^COH&R^DO'."- : 69 
 
 strigose-hispid above, younger ones silky-hirsute beneath ; peduncles 
 elongated, .bearing single heads; rays 10, oval-oblong, emarginate or 
 2-3 toothed, white, thrice the length of the ovate and hairy exterior 
 scales of the involucre, the inner inclosing the achenia, tuberculate- 
 scabrous toward the base, dilated above into a short, smooth hood, trun- 
 cate at the summit with the margin entire and involute. Purgatory 
 Paver, Dr. Bdl Xear Canon City, Redjield. 
 
 IVA AXILLARIS, Pursh. Stem 6'-15' higli, much branched from a 
 somewhat slender, woody base, very leafy; leaves 9"-15" long, 3"-8" 
 wide, obovate or oblong, obtuse, narrowed at the bas*e, minutely ap- 
 pressed- pubescent, sessile; heads solitary in the axils of the leaves on 
 short, recurved pedicels ; scales of the campanulate involucre 4-5, dis- 
 tinct or united to the middle ; fertile flowers 4-5 ; chaff of the receptacle 
 filiform-linear. JTaM d; Harbour, 261. 
 
 IVA CILIATA, Willd. Hall cfc Harbour, 262. 
 
 IVA (BUPHROSYNE) XANTHUFOLIA, Gr.Hall tO Harbour, 263. Den- 
 ver, Dr. Smith. 
 
 AMBROSIA TRIFIDA, L. Plains around Denver, Coulter. 
 
 AMBROSIA PSILOSTACHYA, DC. On the Platte, near Denver, Dr. 
 Smith. 
 
 FRANSERIA l TOMEXTOSA, Gr., PL FendL, p. 80. Herbaceous, pubes- 
 cent throughout, with a soft, silky, and silvery pubescence ; stem erect, 
 about 1 high, paniculate, bearing numerous panicled branches; leaves 
 pinnately 3-5 parted, very white, especially beneath, decurrent into a 
 short, narrowly-margined petiole; lowest apparently bipinnatifid, lobes 
 of the upper ones oblong or lanceolate, dentate or very entire except 
 the large 3-lobed terminal one; sterile involucres 3" in diameter 
 crowded in a dense raceme, 6-toothed, 18-20 flowered, fertile involucres 
 J the size, clustered in the upper axils, ovoid, viscous-puberulent, beset 
 with strong, subulate spines somewhat hooked at the apex, two of them 
 thicker and beaked, two-flowered. Hall & Harbour, 264. 
 
 FRANSERIA HOOKERIANA, Xutt. Annual, much branched, l-2 
 high ; leaves ovate in outline, I'-IJ' long, minutely strigose, bipinnatifid, 
 segments oblong or linear; heads~in panicled racemes, fertile ones with 
 several strong, flattened prickles, sterile ones with a 5-8 cleft involucre 
 and 10-20 flowers; chaff of the sterile receptacle small and inconspicu- 
 ous. Hall c(- Harbour, 265. Wet Mountain Valley, Brandegee. Near 
 Denver, Dr. Smith. 
 
 FRANSERIA TENUIFOLIA, Gr., PL FendL, p. 80. Stem erect, hispid; 
 branches diffuse, slender; leaves bipinuatisect, strigose, hirsute, some- 
 what cinereous, pinna* and segments 3-7, linear, entire or 1-2 toothed, 
 sometimes with a few separate lobes on the narrow rachis, terminal 
 lobe very long; raceme spike-form, slender, disposed in a leafy panicle; 
 involucres of the male flowers equaling the pedicel, 7-8 toothed, 6-12 
 flowered, of the female clustered below, armed with a few very short 
 uucinate spines, 2-celled within, 2 -flowered. Xear Pueblo, Greene. 
 
 FRANSERIA DISCOLOR, Nutt. Stems a span high from a creeping 
 
 1 FRAXSEKIA, Cav. Heads of two sorts, the fertile ones at the base, and the 
 sterile ones rum posing the upper portion of the racemes or spikes. Fertile heads with 
 an ovoid or oblong- closed involucre, composed of numerous united scales, the tips free 
 and spiuescent or hooked; corolla none or rudimentary: style with filiform, obtuse 
 branches; achenia oblong: pappus none. Sterile heads hemispherical; the 12-20 
 flowered, cup-shaped involucre of 8-12 united scales: receptacle nattish. with filiform 
 chaff; corolla funnel-shaped. 4-5 toothed, anthers tipped with a slender inflexed ap- 
 endage : ovary none; style radiate-penicillate at summit. Herbs or suftrutesceut 
 plants: the le;ives alternate, coarsely toothed or lobed, or even bipinnatifid. 
 
70 svxbftsis' *(//* THE "FLORA OF COLORADO. 
 
 root, with lateral decumbent branches, slightly pubescent ; leaves lan- 
 ceolate in outline, 6' long, interruptedly bipinnatitid, nearly smooth 
 above, closely canesceut-toraentose beneath, segments subovate, acute, 
 confluent on the wide rachis; sterile involucres about 5-6 toothed ; fertile 
 flowers few; fruit spiny. Near Denver, Greene. 
 
 ZINNIA 1 GKRANDIFLORA, Xutt. Stems numerous, much-branched from 
 a w r oody base, 4'-5' high, somewhat hirsute; leaves opposite, linear, 
 connate, with scabrous margins, 1' long, 2"-3" wide ; scales of the in- 
 volucre rounded, closely imbricated; rays yellow, very large, orbicular- 
 oval, f wide; palere fiinbriate; acheuia of the disk with a single awn. 
 Canon City, Brandegee. Colorado Springs, Eedfield. 
 
 HELIOPSIS L^SVIS, Pursh. Xear Canon City, Brandegee. 
 
 EUDBECKIA LAOINIATA, L. Canon City, Brandegee. B. H. tfrnith. 
 Sierra Madre Bange, Coulter. 
 
 EUDBECKIA HIRTA, L. On the Platte near Denver and Bear Creek, 
 Coulter. 
 
 LEPACHYS COLUMNARLS, T. & G. Strigose-scabrous, branched from 
 the base, l-2 high ; radical leaves usually undivided, spatulate-lance- 
 olate, caulineones pinnately-parted, the upper sessile, segments linear- 
 lanceolate or oblong, rigid, mucrouulate, entire, rarely somewhat lobed; 
 disk columnar, longer than the 5-8 oblong or obovate-oval, recurved, 
 yellow rays; chaff with woolly tips. Disk 1' or more long. Abundant 
 on the plains around Denver and Colorado Springs. Hall d* Harbour, 
 266; Dr. Smith; Brandegee; Coulter. 
 
 Var. TAOETES, Gr., PI. Wright, 1, p. 106. Kays deep reddish-browu. 
 Purgatory Eiver, Dr. Bell. Pueblo, Greene. 
 
 HELIANTHTJS PETIOLARIS, Nutt. T. & G. FL N. Am. 2, p. 310. Stem 
 erect, l-3 high, strigose or hispid, branching; leaves scabrous, alter- 
 nate, the lower sometimes opposite, ovate-lanceolate or ovate, entire or 
 somewhat repand-toothed, 3-iierved, on ver3 r long, slender, scabrous 
 petioles; peduncles terminal, naked, bearing solitary (usually large) 
 heads; scales of the involucre lanceolate, acute or acuminate; disk- 
 flowers pubescent at base; achenia villous; pappus of two chaffy awns. 
 Heads very variable in size. Near Denver, Dr. &)n ith. Plai us near Colo- 
 rado Springs, Porter. Canon City, Jirandegee. Meehan. Along the 
 Platte, Coulter. Hall cfc Harbour, 270; Parry, 420. 
 
 HELIANTHUS LENTICULARIS, Dongl. Annual, scabrous or hispid, 
 branching, stout, 3-8 high; leaves ovate, alternate, acuminate, coarsely- 
 serrate, 3'-6' long, 2 / -4 / broad, 3-uerved at the base and suddenly nar- 
 rowed into a petiole nearly as long as the leaf, uppermost often lanceo- 
 late and entire ; heads mostly panic-led, peduncled 2'-4' broad ; scales 
 of the involucre ovate, ciliate, abruptly and conspicuously acuminate, 
 in about 3 rows, spreading; rays 20-40, large; chaff of the flat recep- 
 tacle nearly as long as the purplish disk-flowers, concave, cariuate, 
 
 1 ZINNIA, L. Heads immy-tkrwered ; the ray-flowers pistillate, those of the disk tubu- 
 lar, perfect. Involucre imbricate: the scnles roundish or oval, margined. Receptacle 
 conical or somewhat cylindrical, covered with oblong eouduplicate, chatty scales which 
 envelope the disk flowers. Rays obovate or oblong, coriaceous, reticulated, persistent, 
 continuous with the summit of the achenium, or rarely somewhat articulated. Lobes 
 of the corolla of the disk densely velvety-villous at the summit with colored hairs. 
 Branches of the style in the disk-flowers terminated by a hairy somewhat capitate 
 cone. Achenia nearly wingless; those of the ray somewhat 3-sided, mostly destitute 
 of pappus; of the disk, compressed or flat, 1-2 awued or toothed, rarely naked. Annual 
 (American) herbs, with opposite mostly sessile entire leaves. Heads solitary, termi- 
 nating the branches, showv, persistent. * Rays purple, orange, scarlet, or <>Teenish-\vhite. 
 T. f G. FL X. Am. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 71 
 
 tricuspidate, the middle point ranch the strongest and dark-colored ; 
 achenia finely appressed-pubescent ; pappus of two lanceolate, chaffy 
 awns. Plains near Denver and Colorado Springs, Porter; Dr. Smith. 
 Caiioii City, Brandegee. Along the Platte, Coulter. 
 
 HELIANTHUS ORGYALIS, DC. Stem tall, 6-10 high, very smooth ; 
 leaves very numerous and narrow, linear, 3'-6' long, l"-2" wide, flat, the 
 lower remotely denticulate, 1-nerved, slightly if at all scabrous ; heads 
 5-7, corymbose, on long peduncles, rather large; scales of the involucre 
 lax, attenuate-subulate, longer than the disk; rays about 15, I' or more 
 long; chaff of the receptacle, linear- subcuneifonn, somewhat ciliate at 
 the apex ; pappus of 2-4 awns ; aeheuia glabrous. Parry, 57. 
 
 HELIANTHUS RIG-IDUS, Desf. Hall <fc Harbour; Dr. timith. Canon 
 City, Brandegee. Platte River, Coulter. 
 
 HELIANTHUS FUMILUS, Nutt. (?) Sill. Jour.,, (X. $.,) v. .'33, p. 10. 
 Stem l-3 high, hispid, bearing a few heads; leaves opposite, ovate- 
 lanceolate, sub-entire, cinereous-hispid, (when young, covered with res- 
 inous atoms,) -tripli-nerved next the base, short-petioled, uppermost 
 lanceolate, subsessile, often alternate ; involucre a little shorter than 
 the disk, scales oblong, not appendaged, obtusish, white-villous with- 
 out; flowers of the disk yellow; aeheuia glabrous, toward the apex 
 sparsely hispid-ciliate; chaff of the pappus subulate, a little shorter 
 than the corolla, with smaller ones interposed on the outside, and mar- 
 gins appressed-hispid. Hall d' Harbour, 269. 
 
 HELIANTHUS GIGANTEUS, L. Canon City, llrandcyee. Denver, Dr. 
 Smith. The form with opposite narrowly-lanceolate, and long acumi- 
 nate leaves, and long, narrow, foliaceous involucral scales. 
 
 HELIANTHELLA 1 UNIFLORA, T. & G. Stem and leaves clothed with 
 a short and soft, somewhat-cinereous pubescence, 2-3 high; leaves 
 broadly lanceolate, -A'-^' long, l'-2' wide, pointed, narrowed at the base, 
 mostly opposite, lower ones petioled, all 3-nerved above the base ; heads 
 solitary or with 1-2 from the upper axils, on long peduncles, 2 / -4 / broad; 
 involucre leafy at base, scales lanceolate, ciliate-hirsute; chaff of the 
 slightly convex receptacle closely couduplicate, delicately scai ions, pu- 
 bescent at the tip; achenia 2- winged, ciliate and pubescent, crowned 
 with 2 long awns and 2-4 intermediate lacerate squanielhe; rays 15-20, 
 pale yellow. Rail d* Harbour, 268. Canon City, Brandeaee. Near Den- 
 ver and Horse Shoe Mountain, Coulter. 
 
 HELIANTHELLA PARRYI, Gr., Proc. Acad. Pit //., March. 1863, p. 68. Xote. 
 Hirsute; stem single from a thickened root; radical leaves narrowly 
 lanceolate, hispidly-ciliate, very acute, 6' long including the petiole, upper 
 cauline ones sublinear, V-2? long; heads 2-i, small, somewhat nodding, 
 on short or elongated peduncles; scales of the involucre linear-lanceolate, 
 long-acuminate, inner ones exceeding the disk, hispidly-ciliate; chaff 
 of the receptacle slightly scailous, barbulate on the truncate apex; 
 achenia oblong, awnless, crowned with hyaline squamelUe which are re- 
 solved into a villous fringe that equals the proper tube of the corolla in 
 
 1 HEI.IANTHELLLA, Torv. & Gr. Heads many-flowered : the i ay-ri< wers H >-24. neutra 1 : 
 those of the disk perfect. Scales of the involucre linear or lanceolate, in about 2 series, 
 loose, somewhat foliaceous. Chaff of the receptacle persistent, embracing the achenia. 
 Corolla of the disk cylindrical, elongated. 5-toothed, with a very short proper tube. 
 Branches of the style very hispid, more or less obtuse. Ovary compressed, with one or 
 both margins slightly winged and produced at the summit into a short auriculate and 
 lacerate persistent appendage or into an awn, sometimes with intermediate squamelhe, 
 or an obscure coroniform fringe, glabrous, or ciliate. Perennial herbs, with linear or 
 lanceolate mostly scattered ami sessile entire leaves, and solitary showy heads termi- 
 nating the stem or branches. T. |' G. FL X. Am. 
 
72 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 length; involucre 6" long; disk 6" broad; ligules 7"-9" long. Caiiby. 
 Ute Pass, Porter. South Park, Coulter. Central City, Greene. 
 
 HELIOMERIS l MULTIFLORA, Nutt. Jour. Acad. Phil., (N. &,) 1, p. 171- 
 Steins few from a woody root, i-2 liigh, simple or corymbosely branched 
 above; leaves narrowly lanceolate, l'-2J' long, 3"-6" broad, more or less 
 scabrous pubescent, entire or obscurely serrate; heads 6"-8" broad, 
 excluding the rays, mostly terminal on long branches; chaff of the re- 
 ceptacle rather rigid, pungently acute, villose; rays 10-12, oblong-oval, 
 entire or slightly emarginate; achenia compressed-pyriform, scarcely 
 angled, black and somewhat shining. Hall t& Harbour, 211. Near Den- 
 ver, Dr. Smith. Among the mountains, Canby. Canon City, Brandegee. 
 Mount of the Holy Cross and Sierra Madre Range, Coulter. 
 
 Yar. LATIFOLI A, Porter. Taller, 3 high; leaves larger, 3'-4' long, 
 I'-IJ broad, usually serrulate with scattered teeth. Foot- hills near Col- 
 or ad"o Springs, Porter. 
 
 THELESPERMA 2 FILIFOLIUM, Gr. Annual, glabrous, l-2 high, much 
 branched, branches slender ; leaves opposite, 1-2 pinnately parted or 
 divided, the upper 3-5 divided or simple, nearly sessile, divisions atten- 
 uate-filiform, scales of the interior involucre with broad scarious margins 
 united nearly to the middle, longer than the linear-subulate, exterior 
 scales; rays obovate, 3-toothed; acheuia 3" long, crowned with two 
 triangular- subulate, concave, at length divaricate short awns or teeth 
 which are fringed with yellow, retiexed, bristly hairs; heads numerous, 
 small, G" broad without the rays. Hall & Harbotir, 280. Canon City, 
 Brandegee. Near Denver, Dr. Smith. Plains around Colorado Springs, 
 Porter. Monument Park, Coulter ; Redfield. 
 
 THELESPERMA GRACILE, Gr. Erect, 2-3 high, branched above 5 
 branches strict, elongated, corymbose ; leaves pinnately or pedately about 
 5-parted, with narrowly-linear, rigid lobes, the uppermost nearly simple ; 
 heads few-many, on long peduncles; involucre campanulate, inner 
 scales united above the middle, obtuse or acutish, often with narrow, 
 scarious margins, exterior ovate, very short, obtuse ; rays none ; achenia 
 oblong-linear, crowned with 2 stout subulate, persistent, spreading,, re- 
 trorsely pectinate-hispid awns. Hall & Harbour, 279. Plains around 
 Denver and Colorado Springs, Porter. 
 
 COREPOSIS TINCTORIA, Nutt. On the plains. Hall. 
 
 COREPOSIS INVOLUCRATA, ^utt. u Minutely pubescent, stem quad- 
 rangular below ; leaves 1-2 piunately 3-7 parted, the divisions linear - 
 
 1 HELIOMERIS, Nutt. 
 
 , Nutt. Heads many-flowered, radiate; rays neutral; disk-flowers 
 numerous, perfect, the corolla with a very short pubescent proper tube, (i. e. ampli- 
 ated very near the base,) 5-toothed. Involucre spreading; oblong-linear scales in about 
 2 rows. Receptacle oblong-conical, covered with persistent lanceolate, concave-cari- 
 nate chaff, partly embracing the disk-flowers and nearly their length. Stamens with 
 broad ovate appendages and blackish anthers. Branches of the style obloiig-clavatc, 
 slightly hispid. Achenia cuneate-oblong, compressed-quadrangular, entirely destitute' 
 of pappus. Perennial Western North American herbs or sunrutescent plants, with 
 nearly entire, mostly opposite leaves and yellow flowers, smaller than those of most 
 ffcUanthi. 
 
 - THELKSPERMA, Gray. ( Covmidhim, T. & G., FL X. Am.) Heads many-flowered ; the 
 ray-flowers about 8, neutral,, or sometimes wanting; those of the disk tubular, perfect. 
 Involucre double, each, of 8 scales; the interior oblong-ovate, somewhat niembrana- 
 ceous, united to the middle, much larger than the exterior. Receptacle flat ; the chaff 
 scarious, oblong, obtuse, with *2 approximate colored nerves, shorter than the flowers, 
 partly investing the achenia, and deciduous with them. Corolla of the disk with a 
 very slender tube and a deeply 5-cleft limb ; the segments long and linear, recurved, 
 Achenia linear-oblong (obscurely-angled when young,) terete or slightly Decompressed, 
 a little incurved and tubercnlate on the back when mature, not rostrate, the abrupt 
 summit crowned with 2 dentiform retrosely pectiiiate-ciliate (persistent '?) awns. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 73 
 
 lanceolate, iucisely toothed; heads pauicnlate ; scales of the exterior in- 
 volucre about 20, linear-lanceolate, hirsute (as well as the peduncles) 
 longer than the interior ; acheiiium oval, hispid-ciliate, 2- toothed at the 
 summit/' Parry, 31. Plains. 
 
 BIDENS FRONDOSA, L. Caiion City, Brandegee. Introduced. 
 
 BIDENS CHRYSANTHEMOIDES, MX. Plains uear Denver, Dr. Smith. 
 
 BIDENS BIPINNATA, L. Ute Pass, Porter. Introduced. 
 
 BIDENS TENUISECTA, Gr., PL FendL, 86. Annual, nearly glabrous ; 
 stein l-2 high, very smooth, terete, branching, ascending ; branches 
 striate-angled, with i-3 heads at the naked summits ; leaves opposite 
 or alternate, bipiiiuately-parted or biternately-divided, segments linear, 
 very entire or 2-3 lobed, a little broader than the rachis ; scales of the 
 hirsute involucre linear; rays 5-8, inconspicuous, scarcely equaling 
 the disk ; achenia attenuate linear, glabrous, somewhat 4-augled, striate, 
 awns 2, short. Huerfano County, Greene. 
 
 XiMENESiA 1 ENCELIOIDES, Cav. Annual, cinereous-pubescent; stems 
 stout, striate, 3-5 G high; branched above; leaves opposite or alternate, 
 ovate, coarsely dentate-serrate, tapering into sj long, winged petiole, 
 tripli-nerved, paler beneath; heads corymbose on long, naked pedun- 
 cles; achenia of the disk slightly villous, surrounded by a broad wing, 
 emarginate at the summit of the deeply 3-toothed, yellow ray. rugose 
 and wingless. Abundant around Caiion City, Brandegee. 
 
 DYSODIA CHRYSA^THEMOIDES, Lag. Plains around Denver and Colo- 
 rado Springs, Porter. 
 
 GAiLLARDiA 2 ARISTATA, Pursh. Perennial, villous-pubesceiit or almost 
 tomentose with jointed hairs; stem simple or branched, l-2 high; leaves 
 alternate, minutely punctate, radical and lower ones lanceolate, tapering 
 into slender petiojes, sinuate-pinnatin'd or coarsely toothed, minutely ser- 
 rate or nearly entire, the uppermost linear or oblong-lanceolate; sessile, 
 usually dilated at the base, and partly clasping; heads large, li'-2J' in 
 diameter including the rays; involucre hirsute; corollas of the disk 
 with short, broadly subulate teeth, of a rich brownish -purple or maroon 
 color: rays 10-18, crowded, elongated cuneiform, deep yellow; chaff of 
 the pappus 0-8, broadly lanceolate; nmbrilhe of the receptacle few, 
 arista* form, slender, distinct, not dilated at the base, 2-3 times the length 
 of the nearly smooth achenia. Hall cfc Harbour. Near Denver, B. 
 H. Smith. Pleasant and Monument Parks, Coulter. Sangrede Cristo 
 Kange, Reflficld. 
 
 GAILLARDIA PINNATTFIDA, Ton-. Ann. S. Y. Lye. 2, p. 214. Peren- 
 
 
 . Cav. Heads many-flowered^ the rays ligulate, in a single 
 Scales of the involucre somewhat in '2 series, narrow, acute, t'oliaceous, spreading. 
 Receptacle convex: the chaff lanceolate, membranaceoos, embracing the flowers. Tube 
 of the corolla his])i<l. Branches of the style in the disk-flowers appendiculftte. 
 Achenia of the disk Hat (ct)in])ressed laterally.) winded, sonn'what hairy, deeply emar- 
 giiiate at the summit, with 2 setiform awns more or less united with the win;; those 
 of rhe ray mostly dissimilar and wingless. T. .y- (i. /'/. X. Am. 
 
 -GAILLAHDIA, FOII^C. Heads many-floweiv*!, radiate: the ray-tlowers neutral, in a 
 single series, deciduous. Scales of the involucre in about 3 series, vt-ry acute. 
 foliaceoiis, more or less callous and appressed or erect at the base, above spreading or 
 at length rehYxed : the 'xterior largest. Keceptacle convex or hemispherical, limbril- 
 late (the timbrilhe rigid or corneous and elongated,) or in one species nearly naked. 
 Rays cuneiform, palmately 3-cleft or toothed at the summit. Corolla of the disk 
 with a short tube, and an elongated cylindraceous somewhat inflated 5-toothed limb: 
 the teeth usually subulate, and hispid with jointed hairs. Branches of the style ter- 
 minated with a very long and acute filiform hispid appendage. Achenia obpyramidal, 
 iuvolucrate with villous hairs. Pappus of (>-10 membranous 1-neived scales, the 
 nerve*? produced into awns about the length of the corolla. T. ( y- (!. FL X. Am. 
 
74 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 nial, canescent; stems 8'-lU' high, branching; leaves sessile, piima- 
 tifid, the rachis and remote lobes linear; heads rather small ; involucre 
 in about 2 series, nearly equal to the disk; rays deeply 3-cleft; chaff of 
 the pappus lanceolate; fimbrilhe of the receptacle aristreform, slender, 
 sparse, longer than the achenia. Purgatory Kiver, Dr. Bell. 
 
 GAILLABDIA PULCHELLA, Foug. Annual, pnberulent, or slightly 
 hirsute, branching; leaves lanceolate, the lower ones tapering at the 
 base and slightly petioled, somewhat toothed or rarely incised, the 
 upper entire, partly clasping, apiculate-acumiuate ; involucre very hir- 
 sute and callous at the base, longer than the disk ; heads V or more in 
 diameter; rays 10-12, attenuate at the base, deeply 3-cleft, violet-purple, 
 the teeth yellow; corolla of the disk with attenuate, subulate teeth; 
 chaff of the pappus ovate, or lanceolate-oblong, with long awns; tiru- 
 brillie of the receptacle arista^form-subulate, not dilated at the base, 
 slender, longer than the achenia; achenia involucrate with a villous- 
 ferruginous tuft. Plains of Eastern Colorado, Dr. Bell. 
 
 PALAFOXIA 1 HOOKEEIAXA, T. & G., (P. Texana, Hook.) Plant l-2 
 high, strigose-scabrous ; branches paniculate or corymbose ; leaves 
 lanceolate, 1-3 nerved; heads 9" long, many-flowered, radiate j scales 
 of the involucre 12 or more, very glandular as well as the peduncles 
 and branches, imbricated in 2 series, exterior lanceolate, interior obovate- 
 lanceolate or oblong; rays 8-10, more or less exserted, purple, broadly 
 cuneiform, deeply '* cleft; limb of the disk-corolla 5-cleft below the 
 middle ; pappus of the disk-flowers of t>-8 narrowly-lanceolate, acu- 
 minate scales as long as the attenuated, hairy achenium, in the rays ot 
 as many obovate-spatulate, very obtuse, rigid scales, many times 
 shorter than the nearly glabrous achenia. Rail & Harbour, 352. 
 
 Cn^ENACTis 2 DOUGLASII, Hook. & Arn. (C. achillctcfolia, H. & A.) 
 " Biennial and sometimes annual, whitened with a close tomentuin, or 
 rarely smoothish ; stems 2-3 high, simple or much branched, often 
 several from one root ; leaves somewhat fleshy, I'-.')' long, ovate, 
 oblong in outline, 2-3 pinnatifld Avith very numerous and often 
 crowded, minute oblong or obovate, rounded lobes; heads few-many, 
 corymbed ; involucres turbinate or campauulate, the oblong-linear scales 
 in 1-2 series ; tlowers 6" 7" long, whitish or flesh-colored ; corollas 
 pubescent, marginal ones scarcely larger ; achenia linear, hispid, 
 blackish, as long as the corolla; pappus of about 10 unequal and 
 oblong or lanceolate, erosely-deuticulate scales, i- as long as the 
 
 , Lagasca. Heads, 10-30 flowered; the tlowers all perfect and tubular. 
 or tlit> exterior series either imperfectly or manifestly radiate ; the rays 3-cleft, pistil- 
 late, .scales of the obeoiiical or eampanulate involucre 8-15, membranous or her- 
 baceous with scarious tips, appressed (or spreading in fruit,) in 1-2 series, shorter 
 than the disk. Receptacle small, flat, naked or slightly alveolate. Corolla of the 
 disk with a slender tube and an expanded deeply .Vclci't or :Vp;nted limb: the lobes 
 linear or lanceolate, spreading, glabrous. Branches of 1 he style lony; and liliform, 
 Hattish, glandular-pubescent throughout. Achenia quadi-angular, slendt-r, tapering 
 to the base, minutely pubescent. Pappus of G-l^membramu-eous. d'nticulate,pinnately 
 striate scales, furnished with a strong midnerve, which is thickened at the base and 
 often somewhat produced at the apex; the pappus of the exteiior tlowers of fen much 
 shorter. T. j- G. FL X. Jw. 
 
 - 1 Cii.EXATis, DC. Meads niauy-ilowered ; tlowers all tubular and perfect; the 
 corollas glabrous or puberuleut, elongated, narrowly obconic or ampliated above and 
 trumpet-shaped. 5-toothed ; the outer ones (rays) more expanded than the rest and 
 often somewhat irregularly ventricose, 5-cleft ; teeth or lobes pubescent. Involucre 
 rampanulate ; the scales oblong-linear, about '20, in 1-2 rows. Receptacle alveolate. 
 Style with very long, narrowly-linear branches, the upper part hispid. Acheuia 
 linear, tapering to the base, striate or quadrangular. Pappus of 4-12 hyaline, mem- 
 branous, usually nerveless scales, with erosely-dentieulate margins, those of the disk 
 tlowers usually much shorter. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 75 
 
 acheuium." We have adopted for this variable species the excellent 
 emended description of Prof. Eaton in King's Report, vol. 5, p. 172. 
 Hall & Harbour, 283; Parry; Canty. Upper Arkansas, Porter. 
 Saugre de Cristo Pass and Sierra Mojado, Brandegce. Twin Lakes, 
 Mount La Plata, and Sierra Madre Bange, Coulter. 
 
 HYMEXOPAPPUS TENUIFOLIUS, Pursh. Whitened-tomentose, often 
 becoming smoothish ; stems 8'-15' high, leafy at base, sparingly 
 corymbose toward the summit, sometimes several from a rather stout, 
 simple or branched, perennial caudex; radical leaves petioled, 2 / -4 / 
 long, 2-3 pinna tely divided, divisions very narrowly linear, caiiline ones 
 sessile, similar but smaller or reduced above the linear bracts ; heads 
 pedunculate, 4"-6" wide, hemispherieal-campanulate ; scales of the in- 
 volucre 6-8, oval, appressed, with broad, obscurely-denticulated, scarious 
 margins ; corolla-tube very short, throat abruptly inflated ; pappus of 
 spatulate-oblong, obtuse, slightly-erose scales, nerved to the middle, 
 mostly as long as the tube of the corolla. Hall& Harbour, 282. Upper 
 Arkansas, Porter. Canon City, Brandegee. Plains of the Platte, Coulter. 
 Wet Mountain Valley, Redfield. 
 
 BAHIA 1 OPPOSITIFOLIA, T. & G. Perennial, canescently pubescent, 
 very much branched from the base upward, 4'-S' high ; branches op- 
 posite, more or less spreading or decumbent; leaves opposite, petio- 
 late, 1-2 palmately divided, segments linear or lance-linear, about V 
 long; peduncles slender; involucre campanulate; scales 5-8, oblong- 
 ovate; rays about the same number, very short; pappus minute, scales 
 5-8, partly obtuse, somewhat lacerate ; achenium fusiform, tapering to 
 the base, sparingly scabrous. Hall ci* Harbour, 278. Around Denver, 
 Dr. Sitilth. Colorado Springs, Porter. Canon City, Brandegee; Cahby. 
 
 ViLLANOVA 2 CHRYSANTHEMOIDES, Gr. PL Wright., 2, p. 96. Puber- 
 ulent ; stems erect, l-4 high, coryinbosely-panieulate above; flowering 
 branches and peduncles viscous-glandular; leaves alternate, 1-2 ter- 
 nately parted, segments 2-3 lobed or pinnatitid, lobes oblong or sub- 
 linear, obtuse ; heads 6" in diameter exclusive of the ligules which are 
 5" long ; flowers all yellow ; scales of the involucre 16-20, in about o 
 series, equal, acuminate, herbaceous; ligules 16-20, oval-oblong; flow- 
 ers of the disk many, tubes glandular; receptacle rather convex ; ache- 
 nia quadrangular, sub-clavate, nearly glabrous, striate, all fertile. Hall& 
 Harbour, 281. Canon City, Bnuidegee. Soda Springs, Porter. Twin 
 Lakes, Coulter. 
 
 ACTINELLA ACAULIS, L. Caespitose, dwarf and acauleseeut, villous 
 pubescent or silky; cuudex perennial, simple or branching; leaves all 
 radical, spatulate or linear-obovate, entire, 1 / -2J / long ; scapes l / -6 / high, 
 usually leafless and bearing a single head, O'^-lo" broad; involucre of 
 2 rows of oval or oblong scales, equaling the disk ; rays 10-12, broadly 
 cuneate, 3-toothed. and often sprinkled with resinous atoms ; pappus of 
 
 1 BAIIIA, Lagasea. Heads many-flowered," radiate; rays 5-30, pistillate, fertile; disk- 
 rtoAvers tubular, perfect, fertile ;" corollas glandular-hairy, 5-toothed. Involucre sub- 
 globose or campauulate; the scales appressed, in one or two rows. Receptacle convex 
 or conical ; naked branches of the style in the disk-flowers short, thickened at the apex, 
 and obtuse, or truncate, or with a conical fleshy appendage. Achenia narrowly tur- 
 binate or linear, 4-sided. Pappus a crown of short scarious nerveless or rarely 1 -nerved 
 and even awnless scales. 
 
 2 ViLLANOVA, Lagasca, DC. Prod. 6, p. 75. Heads few-flowered, heterogamous. 
 Ray-florets 5-10, pistillate, ligulate, obovate, toothed at the apex. Flowers of the 
 disk perfect, fertile, tubular, terete, 5-toothed. Scales of the campanulate involucre 
 tew, iii 1 series. Receptacle flat, naked. Branches of the style in the disk-flowers 
 capitate, blunt. Acheiiia obpyramidal, wingless, punctate, glabrous. Disk epigynous, 
 minute. Pappus none. 
 
76 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 5-7 broadly ovate scales, tipped with slender awns. Alpine. Hall cO 
 Harbour, 276. , Wet Mountain Valley, Brandegee. Mount Lincoln, at 14,000 
 feet altitude, and Horse Shoe Mountain, Coulter. South Park, Canby. 
 Meehan. 
 
 ACTINELLA SCAPOSA, ^utt. Villous ; scapes single from a woody 
 caudex, 6'-9' high, leafless, bearing a single head ; leaves radical, linear- 
 spatulate, acute or obtusish, 2 / -3 / long, 2"-3" wide, becoming smooth and 
 shining, conspicuously punctate, entire; heads V wide, including the rays ; 
 scales of the involucre ovate, appressed, rather shorter than the disk, in 
 about 3 series, densely villous ; rays about 12, 3"-4 // long, cuneate-ob- 
 ovate, bright yellow, 4-nerved and 3-toothed ; scales of the pappus 5, 
 short-awned, oval. Hall & Harbour, 27 '5. Monument Park, Porter. Gar- 
 den of the Gods, Coulter. 
 
 ACTINELLA BICHAUDSONII, Nutt. Puberulent ; stems 3 / -G / high from 
 a perennial, somewhat branching, woody caudex; leaves petioled, rigid, 
 3/_6' long, pinuately or irregularly 3-7 parted toward the summit, divi- 
 sions narrowly linear; heads loosely corymbose, 9 // -12 // broad, including 
 the rays ; involucre shorter than the disk ; scales in 2 rows, oblong or 
 ovate, the exterior united at the base ; pappus of 5-7 ovate-lanceolate, 
 cuspidate-awned scales ; caudex and bases of the lower leaves woolly 
 tonientose. Hall & Harbour, 274. Abundant at middle elevations, South 
 Park and Ute Pass, Porter. Wilson Creek, Fremont County, Brande- 
 gee. Canby. Twin Lakes and Weston's Pass, Coulter. Redjield. 
 
 ACTINELLA GEANDIFLORA, T. & G. Perennial, more or less densely 
 clothed with soft, white wool ; stems erect from a woody caudex, stout, 
 striate, 6 / -9 / high, leafy, simple or with 2-3 branches from the base or 
 middle of the stem ; lower leaves pinnately or bipiunately parted, with 
 margined petioles from broad scarious bases, 2'-2' long, including 
 the petiole, divisions linear ; upper cauline leaves simple or sparingly 
 divided ; heads very large, 2'-3' broad, including the bright yellow 
 rays; involucre very densely woolly with copious white wool; scales 
 of the involucre in about 2 series, lanceolate, acuminate, exceeding the 
 disk; ligules oblong, 6"-12" in length, 2-3-cleft at the truncate apex; 
 scales of the pappus 6-8, narrowly subulate, exceeding the tube of the 
 corolla ; acheuia villous-hispid. A very showy, high-alpine plant. 
 Hall & Harbour, 273. Parry ; Meehan. Mount Lincoln, at 14,000 feet 
 altitude, Gray's Peak, at 12,000 feet, and White House Mountain, at 
 13,000 feet, Coulter. 
 
 Var GrLABRATA, Porter. Softly tomentose, becoming glabrate ? 
 stems simple from a woody caudex, O'-S' high, unbranched, naked 
 above, bearing a single head ; lower leaves spatulate-liuear, simple 
 or 3-7-parted at the summit, with long, flat, margined x^etioles from 
 somewhat expanded, scarious bases, 2 / -3 / long, including the petiole, 
 di vision slinear upper leaves linear, entire; heads IJ'-IJ 7 broad includ- 
 ing the rays; scales of the involucre ovate, rather obtuse, in about 2 
 series, woolly, but not conspicuous^ so, much shorter than the disk ; 
 ligules about 6" long, rather narrow, j'ellow, 2-3-cleft at the apex ; scales 
 of the pappus 5, subulate, acuminate, sharply serrate on the margins, 
 much shorter than the corolla of the disk, lead-colored ; acheuia viliose. 
 Alpine. Sangre de Cristo Pass, Brandegee. 
 
 HELENIUM ATITUMNALE, L. Platte near Denver, Dr. Smith. Wet 
 Mountain Valley, Brandegee. 
 
 HELENIUM HOOPESII, Gr. Proc. Acad. Phil., March, 1863, p. 65. Note. 
 Stem stout, somewhat tomentose above, striate-angled, 2-4 high; 
 leaves pale glaucous, thickish, punctate, smooth or slightly pubescent, 
 
SYNOPSIS OF THE FLORA OF COLORADO. 77 
 
 entire : radical ones lanceolate-spatulate, narrowed into a short-winged 
 petiole, often very large, G'-ll' long; cauliue ones oblong-lanceolate, 
 seini-amplexicaul ; peduncles thickened above ; heads on long peduncles, 
 naked above, 3-6, very large, 2'-3' broad; scales of the involucre 
 lanceolate or linear, whitish-tomentose; receptacle subglobose; rays 
 15-20, linear, cuneate, about 1' long, orange-yellow; pappus of lanceo- 
 late, subulate, obscurely-nerved scales, a little shorter than the corolla 
 of the disk, as long as the silky-villous acheniuin. A very showy plant. 
 Hoopes. Wet Mountain Yalley, Brandegee. Sierra Madre Range, 
 Ooulter. 
 
 ACHTLLEA MILLEFOLIUM, L. Very common throughout Colorado, 
 Dr. Smith ; Porter; Coulter; Brandegee ; Canby ; Median. 
 
 LEUCAMPYX 1 XEWBERRYI, Gray. Herbaceous, at first woolly, at 
 length nearly glabrous; stems stout, l-2 high, coryinbosely branched; 
 leaves 2-3 piimately parted, segments short, linear, re volute on the mar- 
 gins, radical ones lanceolate in outline, 4'-6' long including the petioles; 
 heads many, rather large, long-peduncled ; scales of the involucre obo- 
 vate, obtuse, with broad scarious tips ; corolla of the disk yellow, of the 
 ray white or cream-colored with a spreading cuneate limb 6" long; ach- 
 euia glabrous, angled, black. This only species of the genus, which in 
 habit resembles a Hymenopappus, was first collected in 1867, by Dr. 
 Xewberry in Xew Mexico, and later in 1872, by Prof. Porter, at the Soda 
 Springs, 35 miles X. W. of Canon City. 
 
 ARTEMISIA DRACUNCULOIDES, Pursli. Hall t(- Harbour, 302. Canon 
 City, Brandcgee. Hoopes. Sierra Madre Range, Coulter. 
 
 ARTEMISIA BOREALIS, Pall. Parry. 
 
 ARTEMISIA CANADEXSIS, MX. Hall & Harbour, 300; Canby; Dr. 
 tim ith ; Porter ; Hoopes. 
 
 ARTEMISIAFILIFOLIA, TOIT. Stems l-3 high, with slender, virgate, 
 pauicled branches ; leaves l'-2' long, whitish-tomentose, becoming 
 smooth, filiform, with revolute edges, lower ones mostly 3-parted; heads 
 very small, crowded in virgate. leafy panicles, tomentose, 3-5 flowered; 
 two florets, pistillate and fertile, with short truncate corollas, the rest 
 perfect but sterile ; corollas funnel-form, 5-toothed. Hall i(- Harbour, 307. 
 Xear Denver. Dr. Smith. 
 
 ARTEMISIA TRIDENT AT A, Pursli. Shrubby, l-6 high, much branched, 
 densely silvery-canescent ; leaves crowded, cuneiform, 6 // -12' / long, 
 usually 3-toothed at the apex, teeth short and obtuse, those of the flower- 
 ing branchlets often linear and entire; heads obovoid, 5-6 flowered; outer 
 scales of the involucre tomentose, very short, inner ones scarious ; flow- 
 ers all perfect and fertile; corollas funnel-form, 5-toothed, the proper 
 tube very short ; styles 2-cleft, the branches widened somewhat upward, 
 truncate and somewhat penicillate. On the Blue River, west of the 
 Rocky Mountain Range. Hall & Harbour, 306. Canby. B. H. Smith. 
 On the Arkansas, Porter ; Coulter. 
 
 1 LKUCAMPYX, A. Gray (in Benth. & Hook. Grew. PI. 2. p. 42*2.) Heads heterogamous, 
 radiate : flowers of tin- ray in one series, pistillate : those of the disk perfect; both feitile. 
 Involucre broadly hemispherical : bracts in '2-3 series, imbricated, broadly scarions at 
 the apex. Receptacle somewhat convex, covered with broad meinbranaceons-hyaline, 
 chaffy scales half inclosing the acheiiia. Corollas of the ray pistillate ; tub* slender : 
 limb broad, 3-toothed or 3-cleft at the apex; those of the disk perfect, regular, tubu- 
 lar: limb campaiiulate, 5-cleft at the apex. Anthers obtuse at base, entire. Branches 
 of the style in the perfect flowers \\ith short penicillate appendages. Achenia'cnueate. 
 incurved, dorsally compressed, subtriquetrous. attenuate at base, obtuse at the apex. 
 Pappus noiir. 
 
78 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ARTEMISIA LUDOVICIANA, Nutt. Plains around Denver, Coulter. BK! 
 
 Var. LATILOBA, Nntt. Lower leaves dilated, deeply pinnatiftd or tho 
 upper trifid, the lobes and the upper leaves broadly lanceolate, the upper 
 surface less toinentose or becoming' smooth. Near Denver, Dr. timith. 
 Glen Eyrie, Porter. 
 
 Yar. GNAPHALODES, T. & G. Very tomentose-canescent throughout ; 
 leaves entire or sharply and irregularly serrate to wards the apex. Near 
 Denver, Dr'. Smith; B. H. Smith. 
 
 Yar. MEXICANA, Gr. Lower leaves piunatifid, upper ones trifid; 
 lobes linear or linear-lanceolate, with revolute margins; heads small, 
 tomentose-canescent. Huerfano County, Greene. 
 
 ARTEMISIA DISCOLOR, Pall. Suffruticose, erect or ascending, 1^-2 
 high, glabrous, simple below ; leaves l'-3' long, mostly smooth above, 
 paler and toinentose beneath, pinnatc4y-lobed with lanceolate, pointed, 
 entire or sparingly toothed segments, with revolute margins; heads sub- 
 globose, lJ"-2" broad, disposed in an elongated, virgate raceme, or 
 strict panicle; involucre at first toinentose, cup-shaped, the outer scales 
 ovate, inner ones oval, with hyaline, ci Hate-fringed margins; receptacle 
 smooth ; florets numerous, a few r of the outer ones pistillate, fertile, with 
 very slender corollas and smooth branches of the style, the rest perfect, 
 fertile, with funnel-form corollas and truncate, penicillate styles. Sierra 
 Madre Eange, Coulter. 
 
 ARTEMISIA FRIGID A, Willd. Hall & Harbour, 304; Parry ; T)r. Smith ; 
 B. H. 8 with; Porter; Meehan; Brandegee; Coulter. 
 
 ARTEMISIA ARCTIC A, Less. Herbaceous, tomeiitose-pubescent or nearly 
 glabrous; stems S'-15' high, simple, erect, leafy, terminating in a virgate 
 raceme or sparingly-branched panicle, somewhat angled; lower leaves 
 bipinnatih'd, on long petioles, lobes linear or linear-lanceolate, iucisely 
 toothed; heads large, globose, nodding, sessile or on short slender peti- 
 oles; scales of the involucre ovate, with blackish scarious margins. Hall 
 d'Htirbour, 298; Parry; Dr. Smith; Brandegee; Meehan; Coulter. Alpine. 
 
 ARTEMISIA scopULORUM,Gr., Proc. Acad. Phil, March, 1863, p. 66. Note. 
 CiBSpitose; rhi/omti creeping; stems very simple, 3 / -8 / high ; leaves white- 
 silky, numerous, pinnately 3-5 cleft, segments especially of the radical 
 ones 3-parted, lobes as well as the uppermost leaves linear, narrow; 
 heads many or few, simply racemose-spicate, short-pedicelled, erect, 
 2 // -3 // broad ; involucre hemispherical, scales oval, villose on the back, 
 margin broad, scarious, dark-brown; wool of the receptacle copious, as 
 long as the florets; florets 18-30. Alpine. AVeston's Pass and White 
 House Mountain, Coulter. Summit of Pike's Peak, Canby. 
 
 Yar. MONOCEPHALA, Gr. I c. Stem 2 / -6 / high, terminated by a solitary, 
 larger head; radical and lower leaves simply 3-parted or occasionally 
 5-parted; uppermost ones linear, very entire; flowers 30 or more, tipped 
 with purplish. Summit of Pike's Peak, Can-by. 
 
 ARTEMISIA PARRYI, Gr. Proc. Am. Acad., vol. 7, p. 361. Yery smooth : 
 stem simple, a span or more high, from a perennial root, leafy; leaves 2-3 
 pinnately parted; pinnae 5-9, crowded, segments linear, acute, 3"-5" 
 long; panicle racemose, many-headed; heads nodding, nearly 3" in diam- 
 eter; scales of the involucre ovate, very obtuse, with scarious, dark- 
 browu uargiu.s; marginal flowers pistillate, few, the others fertile; 
 corollas very smooth. Sangre de Cristo Pass, Parry, 1867. 
 
 GNAPHALIUM LUTEO-ALBUM, L., var. SPRENGELII, D. 0. Eaton, in 
 King's Rep., v. 5, p. 184. (G-. Sprengeln, H. & A.} Annual, whitened 
 with loose wool; stem 6'-30' high, simple below, corymbose with long 
 
 
SYNOPSIS OF THE FLOKA OF COLORADO. PU 
 
 branches toward the summit (some times imbranched;) leaves slightly 
 decurrent; lower ones 2 7 -3 7 long, linear-spatulate, obtuse: upper ones 
 linear-lanceolate, acute; heads clustered; mvolncral scales shining, yel- 
 lowish-white, scarious, oblong-ovate, rather obtuse; pistillate florets very 
 numerous, in several rows outside of the perfect ones; acheuia one-half 
 larger and smoother than in the European plant. Brandegee. Xear 
 Denver, Dr. Smith; H. B. Smith. Wet Mountain Valley, Redjield. 
 
 GNAPHALIUM STRiCTim, Gr. P<ic. R. R., v. 4, p. 110. Annual, white- 
 woolly; stern simple, or branched from the base, strict, 3 7 -9 7 high, vir- 
 gate ; leaves narrowly linear, elongated, uniform throughout, I'-IJ 7 long, 
 rather crowded ; heads closely glomerated in the axils, leafy -bra cfed ; in- 
 volucre companulate, outer scales lanceolate, brownish, inner ones linear, 
 white at the apex; receptacle broad and flat; acheiiia smooth. Hall 
 <t- Harbour, 311. Wet places in the mountains. 
 
 GNAPHALIUM DECUBBENS, Ives. "Subalpiue; rw."Hall it* Har- 
 bour, 312. Hoopes. 
 
 AXTENNARIA GABPATHICA, 11. Bl\, Var. PULCHEBK OIA, Hook. Whole 
 
 plant covered with a soft silvery tomentum, becoming somewhat glab- 
 rate with age; stems simple, leafy, 9 7 -15 7 high, sterile ones not stolonif- 
 erous; radical leaves narrowly oblanceolate, 3'-4' long, acute, 3-5 
 nerved, upper leaves gradually smaller ; corymb more or less spreading : 
 involucre woolly at the base, scales brownish, tips white, not crisped. 
 Canby. South Park, Porter. Canon City, Brandegee. Plains of the 
 Platte and Long's Peak, Coulter. 
 
 AXTENXABIA ALPIXA, Grertn. Cifspitose, producing stoloniferous. 
 flowerless stems ; flowering stems 2'-8 7 high, simple ; leaves &'&' long, 
 white-tomentose, the radical ones spatulate, the cauline linear ; heads 3- 
 7, nearly sessile in capitate clusters ; involucre somewhat woolly at the 
 base ; scales olivaceous with paler and erosely- denticulate, narrowed tips, 
 rather obtuse in the sterile heads, but acute in the fertile ; pappus of 
 the sterile flowers strongly clavate. Hall <( Harbour, 310 : Parry. Clear 
 Creek, Canon and Twin Lakes, Coulter. 
 
 ANTENXABIA DIOICA, Gaertn. Sterile stems stoloniferous, 7 -1 high, 
 leafy; leaves silvery-tomentose. canescenton the lower or on both sides; 
 the radical spatulate, 1-nerved or 3-nerved at base, the cauline lanceo- 
 late or linear, appressed ; heads usually many in the capitate or open 
 corymbs ; scales of the involucre with loose-denticulate, mostly obtuse 
 tips, white, ochroleucous, rose-color or purple; achenia perfectly smooth. 
 Parry; Canby; B. H. Smith ; Porter; Brandegee ; Coulter. Common at 
 middle elevations. 
 
 ARNICA ANGUSTIFOLIA, Yahl. More or less villous ; stems 4 7 -! high, 
 bearing a single head; leaves lanceolate, acute or obtuse, entire or 
 sparingly denticulate, 3-nerved; the radical and lowest tapering into 
 winged petioles, cauline 1-3 pairs, sessile; involucre villous-hirsute : 
 achenia hirsute. Hall it* Harbour, 334; Parry. Canon City, Brandegee. 
 Long's Peak, Monument Park, Horse Shoe Mountain, and Sierra Madre 
 Range, Coulter. "A variable species, from the low and middle to the 
 alpine region; flowering early and late/' 
 
 Yar. EBADIATA, Or. Proc. Am. Acad., Marcli, 1S63, p. G8. Heads discoid : 
 leaves broader; scales of the involucre longer and narrower; usually 
 taller and larger in every way, often 2 high; ripe achenia in our speci- 
 mens hirsute. Hall i(- Harbour, 338. Parry, 10. Gothic Mountain. 
 Coulter. 
 
 ARNICA CHAMISSOXIS, Less. Hirsute-pubescent or somewhat woolly: 
 
80 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 stems simple or branched above, 1-1J high, bearing 3 or more heads, 
 leafy to the summit; leaves oblong-lanceolate, acute or obtuse, entire 
 or sparingly denticulate, 3-5-nerved, radical and lower cauline ones 
 narrowed into short petioles, the rest (2-6 pairs) sessile ; rays short; 
 involucre finely villous-pubescent; acheuia minutely hirsute. Hall cl- 
 Harbour, 337. South Park. 
 
 ARNICA MOLLIS, Hook. Readily distinguished by its almost plumose 
 pappus. "Alpine and sub-alpine." Hall & Harbour, 335; Dr. Smith. 
 Sierra Madre Range, at 11,000 feet altitude, Coulter. 
 
 ARNICA LATIFOLIA, Bong. Sparingly hirsute-pubescent or nearly 
 glabrous; stems 1 high, from a slender, creeping caudex; leaves thin 
 and flaccid, ovate or oblong-ovate, acute, unequally and often very 
 sharply serrate, veiny; the radical ones on long, slender petioles, cauliue 
 in about 3 pairs, closely sessile by a cordate base or the lowermost some- 
 what petioled; heads solitary or 1-2 additional from the uppermost 
 axils, rather small; involucre obconic; scales lanceolate; acuminate; 
 somewhat hairy towards the base; ligules narrow; achenia nearly 
 smooth. Parry, 408. White House Mountain, at 12,000 feet altitude, 
 Coulter. 
 
 ARNICA CORDIFOLIA, Hook. Woolly-pubescent, becoming glabrate 
 with age; caudex slender, creeping; stems 6'-14' high; leaves thinnish, 
 radical and lower ones cordate, roundish, obtuse or acute, on long slen- 
 der petioles, denticulate or sharply toothed, the cauline 1-3 pairs, on 
 shorter petioles, less deeply cordate and more acute, the highest pair 
 sessile; heads rather large, 1-3, on long peduncles; involucres villous- 
 pubescent; scales lanceolate, often somewhat abruptly acuminate; 
 acheuia hirsute. Hall & Harbour, 336. Common; alpine andMib-alpine; 
 very variable in size. Gray's Peak, Dr. Smith. South Park, Canby. 
 Meehan. Sierra Madre Range, Mount Lincoln, at 13,000 feet altitude, 
 Twin Lakes and Clear Creek Canon, Coulter. 
 
 SENECIO LTJGKENS, Richards. Perennial, white-tomentose,deciduously 
 lanate or nearly smooth; stem G'-2 high, often several from one root; 
 leaves glandular- toothed or denticulate, sometimes entire, obscurely 
 veined, 2 / -8 / long, 6 /7 -2' wide, the radical obovate or oblong-spatulate 
 obtuse, narrowed into a petiole, cauline sessile and partly clasping, lan- 
 ceolate; corymb open or dense; heads variable in size, usually rather 
 large; involucres with a few bractlets at the base; scales linear-lanceo- 
 late, acute, with blackish-purple tips; rays from 10-12, oblong linear; 
 twice as long as the involucre; acheuia glabrous. 
 
 Var. HOOKERI, Eaton. King's Rep., vol. 5, p. 188. (8. lugens. Hook. 
 Fl. Bor. Am. 1, 332, t. 114.) Deciduously tomentose or smooth; stem 
 simple; leaves entire or glandular-toothed; radical ones oblong spatu- 
 late, cauliue lanceolate, acute, clasping; corymb dense; scales of the 
 involucre conspicuously sphacelate. Dr. Smith. Canon City, Brantlegec; 
 Meehan. Sierra Madre Range, at 11,500 feet altitude, Coulter. 
 
 Yar. PARRYI, Eaton. I.e. Slightly webhy at first, becoming glabrate; 
 leaves mostly not toothed, rather broad ; involucral scales scarcely or 
 not at all blackened at the tips. Long's Peak and Head of Boulder 
 Canon, Coulter. 
 
 Var. EXALTATUS, Eaton, 1. c., (S. exaltatm, Nutt.) Stem and corymb 
 densely webby-tomentose, stout, li-2 high ; leaves nearly entire or 
 finely glandular-denticulate, ample ; lower ones sometimes 9' long 
 and 2' broad; heads small, in a dense compound, somewhat umbel-like 
 corymb ; scales of the involucre Avith a dark midvein and the tips some- 
 
SYNOPSIS OF THE FLORA OF COLORADO. 81 
 
 what blackened. Hall & Harbour, 325. Gray's Peak, Dr. Smith. 
 Sangre de Cristo Pass, Brandegee. Meehan. Clear Creek Canon and 
 Mount Lincoln, at 12,000 feet altitude, Coulter. 
 
 SENECIO TRIAN&ULARIS, Hook. Glabrous throughout ; stems 2-4 
 high, simple, striate, leafy, 3-4 from one root; leaves 3'-5' long, !J'-3' 
 wide, deltoid-ovate or triangular-lanceolate, sharply and unequally re- 
 pand-dentate or cut-toothed, acute, truncate or subcordate at the base or 
 abruptly narrowed into a winged petiole ; heads rather large, 6" long, 
 few in a loose or sometimes fastigiate corymb ; involucre subcyliudraceous, 
 with a few subulate bractlets at base ; scales about 15, lanceolate, with 
 sphacelate tips; rays 6-9, less than twice as long as the involucre; 
 acheuia striate, glabrous. ITaM & Harbour, 323. Twin Lakes and 
 Mount Lincoln, at 12,000 feet altitude, Coulter. 
 
 StfNECio ANDINUS, Nutt. Glabrous ; stems many from one root, 
 20.40 high, simple, striate, very leafy; leaves 3 / -5 / long, 3"-10" wide, 
 linear-lanceolate, acute at both ends, sharply serrulate with incurved 
 teeth, upper ones sessile, lower ones short-petioled ; heads 4" long, 
 numerous, in panicled corymbs ; involucres calyculate with small subu- 
 late bracts; rays 5-8; disk-flowers 12-20; achenia glabrous. Hall & 
 Harbour, 324. Sierra Madre Range, Coulter. 
 
 SENECIO INTEGERRIMUS, BTutt. Glabrous throughout ; stem simple, 
 striate, 12 / -18 / high; leaves entire; radical ones 3'-5' long and V-% 
 wide, rather obtuse, tapering into a petiole, somewhat fleshy, upper 
 small, lanceolate, acute, partly clasping; corymb simple or nearly so; 
 heads rather large, 8-20; involucre hemispherical, bracteolate, scales 
 15-20, narrowly linear, acute, rays about 8, small; disk flowers 40-50; 
 achenia striate, nearly glabrous. Hall & Harbour, 318. "A low form; 
 alpine." 
 
 SENECIO AUREUS, L. An extremely variable species, very abundant 
 among the mountains, of which the following are the most marked varie- 
 ties : 
 
 Var. ALPINUS. Gr., Sill. Jour. (JV. S.) v. 33, p. 11. Stem scapiform, 
 bearing 1-2 heads, 3' high, bracteate ; radical leaves coriaceous, rounded 
 or obovate-oblong, almost veinless, very entire or somewhat 3-toothed 
 at the apex. Hall & Harbour, 229. White House Mountain, at 13,000 
 feet altitude, Coulter. The specimens of the last collection have the 
 leaves more denticulate; heads sometimes 3. 
 
 Var. WERNERI JEFOLIUS, Gr. Proc. Am. Acad., March, 1863, p. 68. Note. 
 Csespitose, at first arachnoid- woolly; radical leaves numerous, spatulate, 
 oblaiiceolate or spatulate-liuear, attenuate at the base, erect, coriaceous, 
 rigid, veinless, very entire, margins frequently revolute, becoming gla- 
 brate, with the petiole 2 / -4 / long, 2 // -3 // broad ; scapes leafless, 3'-5' high, 
 bracts few, subulate-setaceous, wrapped in wool ; corymb 3-8 headed. 
 Hall & Harbour. Clear Creek Canon, Coulter. 
 
 Var. OBOVATUS, T. & G. Radical leaves roundish-obovate or broad- 
 ly spatulate, toothed or serrated. White House Mountain, at 11,500 feet 
 altitude, Coulter. 
 
 Var. BOREALIS, T. & G. Smooth ; radical leaves thickish, obovate or 
 spatulate, entire or crenulate-toothed at the apex only. Hall & Har- 
 bour, 333 ; Dr. Smith; B. H. Smith. Clear Creek Canon and Twin Lakes, 
 Coulter. 
 
 Var. BALSAMIT^E, T. & G. More or less woolly, becoming glabrous ; 
 radical leaves oval and oblong, spatulate and lanceolate, crenate, sharp- 
 ly crenate-toothedor lyrately-incised; achenia glabrous or strigose on the 
 6F c 
 
82 SYNOPSIS OF THE FLORA OF COLORADO 
 
 angles. Gray's Peak, Dr. Smith. Twin Lakes, Bear Creek, Long's Peak, 
 and Ute Pass, Coulter. Wet Mountain Valley, Brandegee. 
 
 Var. CROCEUS, Gr. Proc. Acad. Phil., March, 1863, p. 68. Smooth ; rad- 
 ical leaves roundish-oval, more or less crenately-toothed or incised \ 
 corymb rather compact; rays saffron-yellow. Hall & Harbour, 332. 
 South Park, Porter. Wet Mountain Valley, Brandegee. Twin Lakes, 
 Mount Lincoln, at 12,000 feet altitude, and White House Mountain, at 
 13,000 feet, Coulter. 
 
 SENECIO LONGILOBUS, Benth. Glabrous ; stems 2-2J high, usually 
 much branched; branches erect; leaves linear, somewhat tapering to 
 the base,2'-4/ in length, l"-2" wide, entire or pinnately 3-9 parted, divis- 
 ions linear, divaricate; heads corymbose, calyculate, with a few small 
 scales, 5" long; scales of the involucre glabrous, linear-lanceolate, with 
 scarious margins, finely striate; pappus bright white; achenia strigose- 
 cauesceut. Branches of the panicle often flexuose. Canby ; B. H. 
 Smith; Hall & Harbour, 328. Plains around Denver, Dr. Smith. Along 
 the Platte, Coulter. 
 
 SENECIO FILIFOLIUS, Nutt., var. JAMESII, T. & G. Suffruticose, 
 much branched, densely tomentose-canescent; branches very leafy to the 
 summit; leaves narrowly linear, 3' long, entire or pinnately-parted, divis- 
 ions 3-9, margins revolute; heads in a terminal corymb, rather large; 
 involucre somewhat calyculate; rays 7-8, linear, rather long; acheuia 
 caneseently-strigose. Gafion Gity, Brandegee. 
 
 SENECIO CERNUUS, Gr. Silt. Jour., (N. S.,) v. 33, p. 10. Glabrous; stem 
 slender, 1 high, paniculate at the summit; leaves lanceolate or linear- 
 lanceolate, tapering at the base into a long petiole, subciliate on the 
 margins, sparingly toothed or nearly entire, lower leaves, including the 
 petiole, 4'-7 / ,long, V broad; heads numerous, small, scarce 6" long, nod- 
 ding, discoid; pedicels 1-2 bracteolate; involucre with a few minute 
 bracteoles at base ; achenia very glabrous. Hall & Harbour, 320 ; Parry, 
 52; Dr. Smith. Ute Pass, Porter. Twin Lakes, Porter. 
 
 SENECIO CANUS, Hook. Whitish-tomentose throughout ; stems tufted, 
 2 / -12 / high; radical leaves oblong-spatulate, entire, cauline sessile, lan- 
 ceolate, partly clasping, sinuate-piimatifid or somewhat toothed towards 
 the base; heads few, in a simple corymb; involucre nearly ecalyculate; 
 rays 8-12, short; achenia glabrous. Hall & Harbour, 330. a Alpine and 
 sub-alpine," Parry, 20. 
 
 SENECIO EREMOPHILUS, Richards. Perennial, glabrous ; stem stri- 
 ate, often purplish, l-4 high, corymbosely branched toward the sum- 
 mit, leafy; leaves short-petioled, 2'-3' long, 6 // -12 // wide, lower some- 
 times larger, deeply incised, with unequal, ovate-lanceolate, toothed seg- 
 ments, sometimes deeply parted, with linear segments which are sharply 
 toothed; heads many, in compound corymbs ; involucre cylindrical-bell- 
 *bjined ; calyculate bractlets few ; scales often blackish -tipped and 
 sphacelate ; rays 7-9, rather long ; achenia striate, glabrous. Hall & 
 Harbour, 327. Near Denver, Dr. Smith. Ute Pass, Porter. Canon Gity, 
 Brandegee. Near Mount Lincoln, Coulter. 
 
 SENECIO FREMONTII, T. & G. Perennial, glabrous; stems 1-several, 
 3'-15' high, leafy to the top, often decumbent; leaves sessile, oblong 
 or obovate-spatulate, somewhat fleshy, laciniate-dentate or obscurely 
 toothed, upper ones l'-2'long, lower ones gradually smaller ; heads soli- 
 tary or few, on very short, erect peduncles ; involucre bell-shaped, 4"-6" 
 long, sparingly bracteolate ; rays 10-16, yellow ; achenia glabrous. "Al- 
 pine."- Hall & Harbour, 322. Dr Smith. Twin Lakes, Coulter. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 83 
 
 SENECIO BIGELOVII, Gr. in Bot. Whippl. Exped., Pacif. R. R. Surv., 4, 
 p. 111. Glabrous; stem simple, stout, erect, 18'-2, from a perennial 
 root, racemose at the summit, bearing 3-15 heads ; leaves ovate-lan- 
 ceolate, acuminate, sharply callous-dentate, contracted into a large mar- 
 gined petiole; uppermost lanceolate, narrowed at the base, partly clasp- 
 ing ; heads large, nodding, homogamous ; involucre broadly cainpanu- 
 late, with a few short setaceous bracteoles at base; scales 10-12, acute, 
 equal, outer ones lanceolate, inner ones broader, scarious-margined j 
 rays none ; achenia very glabrous. 
 
 Yar. HALLII, Gr. Proc. AcacL Phil., March, 1863, p. 67. Note. Leaves 
 almost all lanceolate, more or less woolly pubescent, hairs articulated j 
 cauline leaves all sessile or the lowest contracted into a winged petiole. 
 Hall ' ( Harbour ,321. Canby. Canon City, Brandegee. Mount El bert 
 and Sierra Madre Range, Coulter. 
 
 SENECIO AMPLECTENS, Gr. /. c. Slightly woolly, becoming glabrate; 
 stem G'-lo' high from a perennial root, naked at the apex, bearing 1-3 
 heads ; leaves membranaceous, oblong or lingulate, either repand or 
 very sharply-toothed or even sub-laciniate, lowest narrowed at the base 
 or attenuated into a winged petiole, upper sessile, half-clasping by a 
 broad base ; heads upon long, slender peduncles, nodding ; involucre 
 loosely ealyculate; rays linear, elongated, l'-2' long, golden -y ello w ; 
 achenia very smooth. Hall & Harbour, 317. Canby. Gray's Peak, Dr. 
 Smith ; Meehan. White House Mountain, at 13,000 feet altitude, La 
 Plata Mountain, at 12,000 feet, and Horse Shoe Mountain, at 11,000 feet, 
 Coulter. 
 
 Tar. TARAXACOIDES, Gr. I. c. Truly alpine; 2 / -5 / high, bearing a single 
 head ; head smaller, less nodding ; rays less than V long ; leaves all 
 attenuated at base, more or less laciniate. Summit of Pike's Peak, 
 Canby. Sange de Cristo Pass, Brandegee. 
 
 SENECIO* SOLDANELL A, Gr. Proc. Am. Acad., March, 1863, p. 67. Note. 
 Subcaulescent, '-5' high; very smooth, sub-glaucous; stems bearing a 
 single head, rarely more; root fasciculate- fibrous ; leaves thick, purple- 
 tinged beneath, radical and lowest orbiculate, occasionally somewhat 
 renitbrm, contracted at the 3-nerved base into a long or very long flat 
 petiole, often somewhat denticulate, l'-2' in diameter, upper ones 1-3, 
 smaller, oblong or spatulate, on short dilated petioles; heads large, some- 
 what nodding, 8 // -12 // broad and about as long; scales of the involucre 
 lanceolate, with scarious margins, 16-20, with 7-9 of the outer ones nar- 
 rower, and without margins, looser and either a little or one-half shorter; 
 rays oblong, 16-18, yellow, about 4" long, scarely surpassing the disk ; 
 achenia very glabrous. Hall & Harbour, 319. "High alpine, among 
 rocks." Sangre de Cristo Pass, Brandegee. Mount La Plata, at 14,000 feet 
 altitude, and White House Mountain, at 13,000 feet, Coulter. 
 
 SENECIO RENIFOLIUS, Porter, (n. sp.) Very smooth ; stems, as well as 
 the petioles and under surfaces of the leaves, bright purple, numerous, 
 ascending from a long, slender, creeping purple root-stock, l'-2' high; 
 leaves clustered at the base, all reniform, crenate, or crenate-lobed, 4"- 
 6" long, on flattened petioles of the same length, dark green above ; up- 
 per leaves 1-2, spatulate, crenate, sessile ; peduncle somewhat elongated, 
 bearing a single erect head, about 4 // -6 // long, 4 // -5 // broad ; scales of 
 the involucre rather shorter than the disk, nearly equal, 4" long, lance- 
 olate and linear- lanceolate, purple, inner ones with slightly scarious 
 margins; calyculate scales few, minute, subulate; rays oblong, about 
 4" in length; bright yellow; achenia glabrous. High alpine. White 
 House Mountain, at 13,000 feet altitude, Coulter. 
 
84 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 TETRAD YMiA 1 CANESCENS, DC., var. INERMIS, Gr. (T. inermis, Kutt.) 
 Shrubby, much branched, l-2 high, silvery-canescent, unarmed; 
 leaves thiekish, short, 6"-9" long, l"-2" wide, densely tomentpse, acute 
 but scarcely mucronate; axillary fascicles of smaller leaves none; heads 
 corymbose-clustered; in volucral scales 2 // -4 // long, four, oblong, obtuse, 
 carinate; florets 4; achenia sparingly villous with short, soft hairs, soon 
 becoming nearly smooth. North Park, Hayden. Upper Arkansas, Por- 
 ter. Arkansas River, Coulter. 
 
 TETRADYMIA GLABRATA, T. & G. Pacif. R. R. Rep., 2, p. 122, t. 5. 
 Shrubby, divaricately branched, unarmed; young branchlets and foliage 
 loosely clothed with white floccose wool which is soon deciduous; leaves 
 subulate or acerose, rather fleshy, primary ones erect, not spinesceut, 
 3"-o" long, " wide, linear-subulate, mucronate, producing the next year 
 from their axils shorter, obtuse, ericoid leaves ; heads corymbose ; 
 scales of the involucre 4, white-pubescent or glabrate, about 4" long; 
 florets 4; achenia villous, the hairs much shorter than the pappus. 
 Wet Mountain Valley, Brandegee. 
 
 CIRSIUM UNDULATUM, Spreng. Near Denver, Dr. Smith. Along the 
 Platte, and also a form with yellowish flowers, Coulter. 
 . CIRSIUM VIRGINIANUM, MX. Wet Mountain Valley, Brandegee. 
 Along the Platte, Coulter. 
 
 CIRSIUM FOLIOSUM, DC., (C. edule, Nutt.) Stem erect, stout, striate, 
 somewhat woolly, branched toward the top ; leaves loosely webby on 
 both surfaces, elongated, G'-ll' long, not over 1' wide, irregularly sinu- 
 ate-toothed, teeth triangular, and the veins ending in strong stramineous 
 spines ; heads large, glomerate in the axils of the uppermost leaves, or 
 peduncled ; involucral scales linear-lanceolate, appressed, spine-tipped, 
 arachnoid-tomentose. Near Denver, Dr. Smith. Hall cJ& Harbour, 330 
 and 341. Weston's Pass and Sierra Madre Range, Coulter. 
 
 CIRSIUM DRUMMONDII, T. & G. Stemless or with simple stems, l-2 
 high, sparsely hairy ; leaves green and smooth above, paler and slightly 
 webby beneath, radical ones oblanceolate or spatulate, primary ones 
 entire, with ciliate-spinulose margins, later ones and the stem-leaves 
 pinnately toothed or incised, often doubly so, and spiny with weak 
 slender prickles; heads 1-4, sessile or short- stalked, surrounded either 
 by the radical leaves or by a circle of leaves at the top of the stem : 
 involucres glabrous, or with the scales softly ciliate on the margins ; 
 -scales triangular-lanceolate, appressed, tipped with weak prickles ; 
 flowers red or purplish. - 
 
 (a.) Caulescent form. Hall & Harbour, 343. (b.) Acaulescent form. 
 Hall & Harbour, 339. Sierra Madre Range, Coulter. 
 
 CIRSIUM ERIOCEPHALUM, Gr. Proc. Acad. Phil., March, 1863, p. 69. 
 Stein l-2 high, simple, leafy, deciduously arachnoid-tomeiitose ; leaves 
 nearly smooth above, paler and webby beneath, far decurrent, linear or 
 dblong-linear, pinnatitid, with very numerous, crowded, short, very spiny 
 lobes; heads several, sessile, in a dense terminal cluster, iuvolucrate 
 with very spiny foliaceous bracts which pass gradually into spinulose- 
 ciliate, spine-tipped involucral scales, which are clothed with a finely 
 
 1 TETRAD YMIA, DC. Heads 4-nowered, (in one species 5-9-flowered;) the flowers all 
 tubular, perfect and fertile ; the corollas funnel-form with a long slender tube, deeply 
 5-lobed, the linear lobes slightly recurved. Involucre of 4 (rarely 5-6) sub-equal con- 
 cave-cariuate, rigid, oblong, scales. Receptacle very small, naked. Anthers linear, 
 exserted. Branches of the style linear, with very short, ovate, obtuse, pubescent append- 
 ages. Achenia oblong-linear, villous or glabrate. Pappus copious, of very fine, un- 
 equal, capillary, denticulate filaments as long as the tube of the corolla. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 85 
 
 tomentose wool, inner scales entire, spine-tipped ; flowers yellow. Hall 
 c(- Harbour i 341. Sangre de Christo Pass, Brandegee. White House 
 Mountain and Mount La Plata, at 13,000 feet altitude, Coulter. 
 
 CIRSIUM OCHROCENTRUM, Gr. PL FendL, p. 110. Stem very leafy, 
 erect, 2-3 high, webby-tomentose ; leaves piunatifid, sessile; upper- 
 most decurrent, becoming glabrate ; cauliiie leaves 4'-6' long, very 
 spiny ; opines 6" in length, yellow ; heads subsolitary, sessile on the 
 ends of the branches, rather small, V or less in diameter ; scales of the 
 globose iuvolucre glabrous, abruptly ending in stout yellow spines 6" in 
 length. Wet Mountain Valley, Brandegee. 
 
 STEPHAN03IERIA 1 MINOR, Nutt. /^Including S. runcinata, Nutt.) Pe- 
 rennial, glabrous; stems single, much branched, l-2 high, lower leaves 
 2 / -3 / long, runcinately toothed, upper ones reduced to subulate entire, 2-4 
 toothed bracts ; heads 5-7 flowered, solitary on the ends of the branch- 
 lets: proper involucral scales 5-7, 4 // -5 // long; achenia 5-ribbed, smooth \ 
 pappus of 15 distinct setae, plumose nearly or quite to the base. Hall & 
 Harbour, 346. Plains near Denver, B. H. Smith. Colorado Springs. 
 Porter. 
 
 CYNTHIA VIRGINICA, Don. Wet Mountain Valley, Brandegee : Red- 
 field. 
 
 TROXIMON CUSPIDATUM, Pursh. Plains around Denver and Saint 
 Vrain River, Coulter. 
 
 HIERACIUM FENDLERI, Schultz. (Crepis ambigua, Gr. PL FendL, p. 
 114.) Stem scape-form and simple from a perennial root, or with 1 or 2 
 elongated branches from the base or near it, each bearing 5-8 heads ; 
 leaves obovate-oblong, very entire, beset with scattered, spreading, 
 hispid bristles, otherwise very smooth, 2 / -3 / long, sessile, the radical 
 with a tapering base, somewhat purplish underneath ; heads 9" long, on 
 rather long peduncles; florets about 30; involucre cylindrical, hairy, 
 scales linear, exterior ones twice shorter, appressed ; ligules very short, 
 a little longer than the pappus, usually a little shorter than the styles; 
 achenia fusiform, narrowed upwards, but not truly rostrate, 4" in length, 
 many-ribbed, very smooth, as long as the copious, dull- white pappus. 
 Mace's Hole, Fremont Countv, Brandegee. Parry. Wet Mountain Val- 
 ley, Redfield. 
 
 HIERACIUM ALBIFLORUM, Hook. Stems simple, l-3 high, rather 
 slender, smooth above, hispid near the base, like the petioles and mid- 
 ribs, with rather long deflexed hairs ; leaves mostly radical or low on the 
 stem; oblong-lanceolate, acute, entire or denticulate ; heads rather small, 
 on nearly smooth, bracteolate pedicels, in a compound, at length very 
 open corymb; involucre nearly ecalyculate, the blackish scales sparsely 
 hairy; flowers white; about 20; achenia very slightly narro wed toward 
 the summit. Hall & Harbour, 350, " subalpine, west of the range; 
 rare." Mountain of the Holy Cross, Coulter. 
 
 HIERACIUM TRISTE, Willd. Stem slender, simple, 6 / -12 / high, smooth 
 below, hispid with blackish hairs above; leaves chiefly radical, hirsutu- 
 lous or smooth, entire or remotely denticulate, mucronate, tapering into 
 slender petioles ; involucres hispid with blackish hairs ; flowers 20-30 :. 
 
 J STKPHANOMERIA, Xutt. (Including Heiniptilium, Gray.) Heads 3-12 flowered j 
 the flowers all lignlate. Involucre cylindrical, calyciilate'; bracelets few, very .small; 
 proper scales 3-7, suheqtial, but in two species more numerous, unequal andimbricated.. 
 Receptacle naked, slightly honey-combed, Achenia oblong-linear or clfrvate-oblong, 
 with 5 prominent angles or ribs', the intercostal spaces either plain or tubereulate,, 
 rugose, or occupied by additional less elevated ridges. Pappus simple. .of. 5-25 plumose \ 
 filiform seta? or bristles, slightly dilated at the base. 
 
86 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 achenia oblong, not narrowed at the summit. Hall & Harbour, 349. 
 Sierra Madre Range and Twin Lakes, Coulter. 
 
 NABALTJS RACEMOSUS, Hook. Hall & Harbour, 351. " South Park ; 
 rare." Wet Mountain Valley, Brandegee. 
 
 LYGODESMIA JUNCEA, Don. Hall & Harbour, 345. Plains near Den- 
 ver, Dr. fimith. Colorado Springs, Porter. Canon City, Brandegee; 
 RedMd. Plains of the Platte, Coulter. 
 
 Var. ROSTRATA, Gr. En. Hall & Harbour, p. 69. Note. Achenia 
 attenuate-rostrate at the apex, 6" long; heads often 8-9 flowered; 
 leaves very narrowly linear, elongated, 3'-4'. Near Greeley, Greene. 
 
 PYRRHOPAPPUS GRANDIFLORUS, Nutt. Scape simple, naked, much 
 longer than the deeply pinnatifid and ciliate radical leaves, bearing a 
 single head, 1 high, with a small bract in the middle; involucre 
 slightly canescent; ligules golden-yellow; pappus fulvous, with avillous 
 ring at base; aehenia produced into a long, slightly scabrous beak. 
 Plains of Eastern Colorado, Dr. Bell. 
 
 CREPis 1 RUNCINATA, T. & G. Perennial, slightly hirsute, becoming 
 smoother; radical leaves obovate or oblong-lanceolate, runcinate-lobed 
 or only slightly toothed, tapering to the base, 2'-7' long ; scape l-2 
 high, branching, bearing a few linear, bract-like leaves ; branches and 
 involucres more or less hirsute with blackish, often glandular, hairs ; 
 involucres many-flowered, calyculate ; scales linear-lanceolate, with 
 scarious margins; achenia striate, slightly tapering upwards. Hall d' 
 Harbour, 348. South Park, Porter. Wet Mountain Valley, Brandegee. 
 Bear Creek and Sierra Madre Eange, Coulter. 
 
 CREPIS OCCIDENT ALIS, T. & G. Perennial, canescent, with a close 
 furfuraceous pubescence ; stern 6 / -18 / high, branching, leafy ; radical 
 leaves, with the petiole, 6'-9' long, lanceolate, tapering both ways, 
 acuminate, more or less deeply runcinate-piimatifld, with acute, often 
 toothed lobes; cauline leaves similar, but smaller and sessile ; heads 
 eoryinbed, 11-35 flowered; involucres calyculate, with a few loose 
 bractlets, the proper scales 8-10, 6"-S" long ; mature achenia rather 
 stout, 3" long, tapering to the apex, evidently 10-striate. Hall & Har- 
 bour, 353. 
 
 Var. GRACILIS, Eaton. (C. acuminata, var. gracilis, Torr. Ms.) Stem 
 evry slender, bearing 3-6 narrow, 9-14 flowered heads; leaves narrowly 
 linear, long-acuminate, with a few very narrow, almost filiform, elongated 
 teeth near the middle. Middle Park, Parry, 1864. 
 
 CREPIS NANA, Bichards. Perennial, nearly acaulescent; scapes nu- 
 merous from the summit of the somewhat fusiform caudex, bearing 1 
 or more, about 14-flowered heads, scarcely equalling the elliptical, or 
 roundish, entire, or siuuate-lyrate, long petioled leaves; petioles pur- 
 plish; rays yellow; involucre few-flowered, cylindrical, exterior calycu- 
 late scales short and appressed ; receptacle naked ; achenia slender, 
 5-30 striate, narrowed at the apex, scarcely rostrate. Mount Lincoln, 
 at 12,500 feet altitude, Coulter. 
 
 1 CREPIS, L. Heads several-m any-flowered; the flowers all ligulate. Involucre 
 usually calyculate with a few small bracteoles, the proper scales nearly equal, in a 
 single series. Receptacle naked or slightly hairy. Achenia terete or somewhat com- 
 pressed, 8-30 striate, usually narrower above or even tapering into a short beak, the 
 apex expanded into a minute disk. Pappus pure white, copious, of denticulate or 
 scabrous delicate capillary bristles, or sometimes of more rigid bristles slightly dilated 
 toward the base. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 87 
 
 MACRORRHYNCHUS 1 GLAUCUS, EatoD. (Troximon glaucum, Nutt.) 
 King's Hep., vol. 5, p. 204. Perennial, smooth and somewhat glaucous; 
 leaves linear-lanceolate or lanceolate, 3'-6' long, about 6" broad, entire 
 or slightly runcinately- toothed; scape 6'-9' high; involucral scales un- 
 equal, the outer ones shorter and broadly ovate-lanceolate, slightly 
 pubescent, inner ones lanceolate, 7"-9" long; achenia 10-ribbed, con- 
 tracted toward the summit, but scarcely beaked; pappus rather coarse, 
 longer than the achenium. Hall & Harbour, 354 in part. Wet Mountain 
 Yi\i\ey,- Brandegee. Common on the plains of the Platte, Coulter. Gray's 
 Peak, Dr. Smith. 
 
 Var. DASYCEPHALUS, T. & G. " Involucre woolly, at least when young, 
 exterior scales spreading; leaves and scape often somewhat pubescent; 
 receptacle sometimes but not always furnished with a few linear, acu- 
 niinate, chaffy scales intermixed among the flowers." Hall <* Harbour, 
 356. Along the Platte and in the Sierra Madre Kauge, Coulter. 
 
 MACRORRHYNCHUS TROXIMOIDES, T, & G. Perennial, smooth and 
 somewhat glaucous; leaves oblanceolate, or linear-lanceolate, 4 / -10 / long, 
 3"-9" wide, acuminate or obtuse and slightly apiculate, entire or lacini- 
 ately pinnatitid; scapes 4 / -2 high; involucre Q"-W long; scales nearly 
 equal, lanceolate from a broad base; acheiiia 10-ribbed, at length produced 
 into a slender beak two-thirds as long as the achenium proper and with 
 it slightly or considerably longer than the pappus. Hall & Harbour, 
 355. u Very variable at all heights, even alpine; flowers in July and Au- 
 gust. 7 ' Near Denver, B. H. Smith. Wet Mountain Valley, Brandegee. 
 Plains of the Platte, Twin Lakes and White House Mountain at 12,000 
 feet altitude, Coulter. 
 
 TARAXACUM PALUSTRE, DC. Sparingly toinentose, at length very 
 smooth ; leaves lanceolate or oblong-spatulate, entire, sinuate, or strongly 
 runeinate, usually shorter than the scape, 4 / -8 / long, 5"-2' broad, obtuse 
 or acutish; inner scales of the involucre, more or less corniculate, 
 lanceolate, outer scales ovate, appressed, much shorter; achenia inuricate 
 and spiuulose towards the apex, when mature scarce half the length of 
 the beak. Scapes 4 / -12 / high. Hall & Harbour, 357. Wet Mountain 
 Valley and Sangre de Cristo Pass, Brandegee. Clear Creek Canon; 
 Mount Lincoln, at 14,000 feet altitude, and White House Mountain, at 
 13,000 feet, Coulter. 
 
 MULGEDIUM PULCHELLUM, ^utt. Hall &Harbour, 344. Bear Denver, 
 Dr. Smith; B. H. Smith. Colorado Springs, Porter. 
 
 LOBELIA SYPHILITICA, L. Wet Mountain Valley, Brandegee. Near 
 Denver, Dr. Smith ; Greene. 
 LOBELIA CARDINALIS, L. Pueblo, Greene, 1873. 
 
 CAIWPANULACEJE. 
 
 CAMPANULA ROTUNDIFOLIA, L. Hall & Harbour, 358. Xear Denver, 
 Dr. Smith; B. H. Smith. Colorado Springs, Porter. Xorth Park, Hay den. 
 Plains of the Platte, Coulter. 
 
 LM ACRORRHYXCHUS, Lessing. Heads many-flowered, the flowers all ligulate ; involucre 
 campanulate; the lanceolate or ovate-lanceolate scales imbricated in 2-3 series, the 
 inner ones scarious-niargined, the onter ones sometimes shorter, often foliaceoiis. Recep- 
 tacle naked, or very rarely with a few chaffy scales among the flowers. Achenia gla- 
 brous, terete or slightly obcompressed, 10-ribbed or winged, narrowed above and in most 
 species at length produced into a long slender beak, the apex dilated into a small flat 
 disk. Pappus of copious, white, scarcely, scabrous, soft and capillary or coarser and some- 
 what rigid bristles. 
 
88 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 CAMPANULA LANGSDORFFIANA, Fisch. Glabrous ; stem simple, slen- 
 der, erect, 4'-l high, leafy toward the base, 1-flowered ; leaves sparsely 
 denticulate, radical ones spatulate, l'-2' long, tapering to the base, stem- 
 leaves narrowly lanceolate or linear ; ovary obconic; calyx-lobes lance- 
 olate, acuminate, serrulate on the margins, more than half as long as the 
 corolla ; corolla spreading-campanulate, deeply 5-lobed, narrowed toward 
 the base, large for the size of the plant, I' in diameter. Hall & Harbour, 
 359. " Very common in the subalpine region and lower, in wet ground." 
 North Park, Hayden. Wet Mountain Valley, Brandegee. South Park, 
 Porter. Sierra Madre Eange and Ute Pass, Coulter. 
 
 CAMPANULA UNIFLORA, DC. Prod. 7, p. 482. Stem 1-flowered; leaves 
 subentire, lower obovate, petioled, the middle ones obovate-lanceolate 
 and the upper ones occasionally linear-lanceolate; calyx slightly villous 
 with linear acuminate lobes, nearly equaling the funnel form corolla ; 
 capsule cylindrical; stems 2 / -4 / high. Hall & Harbour, 360. " Pike's 
 Peak ; high alpine. 77 Divide between Sacramento and Mosquito, at 13,000 
 ft. lat., Coulter. Sangre de Cristo Pass, Brandegee. 
 
 CAMPANULA APARINOIDES, Pursh. Hall & Harbour, 361. 
 
 SPECULARIA PERFOLIATA, A. DC. Plains of the Platte near Denver, 
 Coulter. Golden City, Greene. 
 
 ERICACEJE. 
 
 VACCINIUM C^ESPITOSUM, MX. Hall & Harbour, 363. 
 
 VACCINIUM MYRTILLUS, L. Branches sharply-angled, green ; leaves 
 deciduous, ovate, minutely serrate, glabrous, shining ; peduncles 1-flow- 
 ered, solitary, axillary, nodding ; stemG'-l high, very diffusely branched ; 
 flowers small, V in length, white ; fruit small, about W in diameter, 
 light red. Leaves variable in size, 2 // -6 // long, 2"-6" broad. Alpine and 
 subalpine. Hall & Harbour, 362. Canon City, Brandegee. Georgetown, 
 Dr. Smith. Clear Creek Canon, Coulter. 
 
 ARCTOSTAPHYLOS UVA-URST, Spreng. Hall & Harbour, 364. Dr. 
 Smith ; B. H. Smith ; Porter. Common in the mountains, Coulter. The 
 " Kinnikinick " of the Indians. 
 
 GAULTHERIA MYRSINITES, Hook. Fl. Bor.-Am. 2, p. 35, t. 129. Low, 
 trailing; stems 2 / -6 / long, leaves orbicular-ovate, ciliate-serrate, shining, 
 4 // -9 // in diameter; flowers solitary, with several ovate bracts ; subcam- 
 paimlate corolla scarcely exceeding the calyx, white, V in length ; anthers 
 obtuse ; filaments glabrous ; disk none ; fruit scarlet. Hall & Harbour, 
 365. 
 
 KALMIA GLAUCA, Ait., var. MIOROPHYLLA, Hook. Stems leafy, l'-2' 
 long; leaves somewhat oval, scarcely 6" in length; flowers 1-4, on ped- 
 icels I 7 long. Alpine. Hall & Harbour, 370. 
 
 PYROLA ROTUNDIFOLIA, L.,var. ULIGINOSA, Gr. Hall & Harbour, 367 ; 
 Parry. Wet Mountain Valley, Eedjield. 
 
 PYROLA CHLORANTHA, Swartz. Hall & Harbour, 368 ; Meehan. 
 PYROLA SECUND A, L. Hall & Harbour, 366. Georgetown, Dr. Smith; 
 Meehan. Twin Lakes, Coulter. 
 
 PYROLA MINOR, L. Parry. Twin Lake Creek, at 10,000 feet altitude, 
 Coulter. Alpine forests, Jefferson County, Greene. 
 
 MONESES UNIFLORA, Gr. Hall & Harbour, 369. Wet Mountain Val- 
 ley, Brandegee. Mount La Plata, at 11,000 feet altitude, Coulter. 
 
 PTEROSPORA ANDROMEDEA, Nutt. North Park, Hayden. Chiaim 
 Canon, Porter. Hall & Harbour, 371. Sangre de Cristo Range, Eedjield. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 89 
 
 PtANTAOINACEJE. 
 
 PLANTAGO ERIOPODA, Torr. Ann. N. T., Lye. 2, p. 237. Perennial ; 
 base of the leaves and scape invested with a long dense wool of a rusty 
 brown color ; leaves broadly lanceolate, 4'-6' long, ! 7 -2 7 wide, attenuate 
 at each end, long-petioled, acute, very smooth and entire, distinctly 
 5-nerved; scape 6'-l high, terete, very glabrous; spike cylindrical, 
 3'-6' long, of rather remote, perfect flowers ; stamens and styles very 
 long; bracts broadly ovate, obtusish; capsules 2-celled, 4-5 seeded; 
 seeds not hollowed. Hall & Harbour, 372. South Park, Porttr. Wes- 
 ton's Pass, Coulter. 
 
 PLANTAGO PATAGONICA, Jacq., var. GNAPHALIOIDES, Gr. Very abun- 
 dant on the plains. Hall & Harbour, 374. Near Denver, Dr. ftmith. 
 Colorado Springs, Porter; B. H. Smith. Plains of the Platte, Coulter. 
 
 Var. ARISTATA, Gr. Plains of the Platte, Coulter. 
 
 PRIMULA PARRYT, Gr. Sill. Jour. (N. S.) 34, p. 257. Leaves oblance- 
 olate, narrowed to a broad, fleshy petiole, and with the rest of the plant 
 somewhat glandular-scabrous, at least upon the margin, which is entire 
 or denticulate with short glandular teeth, 6 / -12 / long; scapes 4 / -16 / 
 high ; flowers rose-color, becoming purple in drying, 6-15, on unequal 
 pedicels, ^'-3' long; leaves of the involucre subulate or linear, unequal, 
 acute, several times shorter than the elongated pedicels ; calyx-lobes 
 broad-lanceolate, acute, equaling the tube of the pink corolla; corolla- 
 lobes rounded, obcordately 2-cleft or ernarginate. Alpine and sub- 
 alpine; common. Parry, 311; Hall & Harbour, 379. Gray's Peak, Dr. 
 Smith; Aleehan. Mount Lincoln, at 13,000 feet attitude, July 9, Coulter. 
 Redjield. 
 
 PRIMULA ANGUSTIFOLIA, Torr. Ann., N. Y. Lye. 1, p. 34, t. 3, fig. 3. 
 Tufted, from a thick rootstock; scapes 3 // -12 // high, leafless; leaves 
 elliptical lanceolate or oblong, sometimes spatulate, 6 /7 -12 77 long, obtuse, 
 mem bran aceous, veinless, glabrous, very entire ; scape solitary, 1 -flow- 
 ered, shorter than the leaves, with a bract a little below the flower; 
 calyx cylindrical-oblong, 5-6 cleft, smooth, segments subulate, erect; 
 corolla purple, sub-campanulate, tube longer than the calyx, limb 
 erect, spreading, with ovate, obtuse, very entire segments, 6 /7 -7 /7 broad ; 
 stamens in the tube of the corolla ; filaments very short ; anthers oblong, 
 2-celled; style 1, straight, persistent; stigma globose; capsule ovate. 
 High-alpine. Pike's Peak, Porter; Parry. James's Peak, at 12,000 feet 
 altitude, Mount Lincoln, at 13,000 feet, and Mount La Plata, at 14,000 feet, 
 Coulter. Gray's Peak, Redfield. 
 
 PRIMULA FARINOSA, L. Hall & Harbour, 378. Canon City, Brandegee. 
 Colorado Springs, Porter. South Park, Coulter. 
 
 ANDROSACESEPTENTRIONALIS,L. DC. Prod. 8, p. 52. Annual, acaules- 
 cent, minutely pubescent; leaves rosulate, lanceolate or lance-ovate, J 7 -! 7 
 long, denticulate, on a broad petiole; scapes numerous, many-flowered, 
 3-20, 7 -6 7 high ; leaflets of the involucre subulate, acute ; calyx-lobes 
 ovate-lanceolate, acuminate, equaling the corolla; pedicels numerous, 
 filiform; calyx-tube obconic. Common at all elevations from low sub- 
 alpine to alpine. Hall & Harbour, 37 '6; Parry. Canon City, Brandegee; 
 Canby. Georgetown, Dr. Smith; B. H. Smith. Porter. Clear Creek 
 Canon, Long's Peak, and the Sierra Madra Range, Coulter. 
 
 ANDROSACE FILIFORMIS, Retz. DC. Prod. 8, p. 53. Acaulescent ; 
 
90 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 leaves rosulate, ovate, or ovate-rotund, subacute, very smooth, serrate- 
 dentate, petiolate, petiole winged, nearly equaling the limb; scapes 
 numerous, erect, filiform, sparingly pilose above; involucre small; ped- 
 icels 20-30, capillary; calyx 5-cleft, campanulate, very smooth, lobes 
 equaling the tube or a little shorter, lance-ovate, acute ; limb of the 
 corolla very small, with obtuse, lance-ovate lobes. Much smaller and 
 more delicate in all its parts than the preceding, which it much re- 
 sembles, but is readily distinguished by its subglobose calyx with shorter 
 acd less spreading teeth. " Subalpine; not rare." Hall & Harbour, 375. 
 
 ANDROSACE OCCIDENTALIS, Nutt. "On the plains." Hall & Har- 
 bour, 377. 
 
 ANDROSACE CHAM^EJASME, Willd. DC. Prod. 8, p. 51. (A. carinata, 
 Torr.) Steins erect; l'-2' high; leaves rosulate, much crowded, ovate- 
 lanceolate, acute, very entire, scarcely petioled, subglabrous on both 
 sides, ciliate on the margin ; scapes 1 or few, 2-5-flowered, villous with 
 jointed hairs ; leaflets of the involucre equaling the pedicels or a little 
 shorter, lance-ovate, villous, ciliate; lobes of the campanulate calyx 
 about 5, pilose, about equaling the tube, acute or obtuse; lobes of the 
 corolla entire, ovate, sinuate; capsule globose, 1" in diameter. High 
 alpine. Pike's Peak, Porter. Hall & Harbour, 202. Sangre de Cristo 
 Pass, Brandegee. Mount Evans, Greene. 
 
 DODECATHEON MEADIA, L. Hall & Harbour, 381 ; Meehan. Middle 
 Boulder, Coulter. South Park, Porter. Subalpine and alpine. 
 
 LYSIMACHIA CILIATA, L. " Mountains at medium height," Hall d* 
 Harbour, 382 ; Meehan. 
 
 GLAUX MARITIMA, L. Hall & Harbour, 60 and 577. South Park, 
 Porter and Coulter. 
 
 L.ENTIBUJLACEJE. 
 
 UTRICULARIA VULGARIS L. " In a subalpine lake." Hall & Harbour, 
 580 . Cold Marsh, near Long's Peak, Coulter. 
 UTRICULARIA GIBBA, L. Alpine lake, 1870, Greene. 
 
 OROBANCHACEJE. 
 
 PHELIP^A LUDOVICIANA, Don. On rootsof Artemisia frigida,V?illd., 
 Meehan. 
 
 APHYLLON FASCICULATUM, T. & G.Hall & Harbour, 383. Near 
 Denver, B. H. Smith; Meehan. Canon City, Brandegee. South Park, 
 Porter. Monument Park and Weston's Pass, Coulter. 
 
 APHYLLON UNIFLORUM, T. & G. Golden City, Greene. 
 
 SCROPHUL.ARIACE JS. 
 
 LINARIA CANADENSIS, Spreng. Golden City, Greene. 
 SCROPHULARIA NODOSA, L. Foot-hills west of Denver, Porter. Bear 
 Creek, Coulter; Greene. 
 
 COLLINSIA PARVIFLORA, Dougl. Hall & Harbour, 402. Canon City, 
 Brandegee. Saint Vrain Canon, Coulter. 
 
 PENTSTEMON BARBATUS, Nutt. Gr. Rev. Pentst. Proc. Am. Aead., 6. 
 p. 59. Very glabrous, 2-3 high; leaves very entire; upper ones linear- 
 lanceolate ; panicle lax, elongated ; segments of the short calyx margined ; 
 corolla strongly bilabiate, scarlet, V or more long, upper lip broad, con- 
 
SYNOPSIS OF THE FLORA OF COLORADO. 91 
 
 cave, slightly emarginate-bifid, lower deflexed, deeply 3-cleft, scarce 
 equal in length to the upper, usually bearded ; tube elongated, scarcely 
 ampliate ; sterile filanieut naked. 
 
 Var. TORREYI, Gr. Bot. Mex. Bound., p. 114. (P. Torreyi, Benth. in 
 DC. Prod. 10, p. 324.) Tall, 2-3 high, glaucous; leaves entire, can- 
 line sessile, lanceolate or linear ; panicle elongated, few-flowered ; corolla 
 l'-l' long, somewhat dilated above, throat less bearded or naked; lips, 
 especially the upper, a little longer; bright scarlet. Hall & Harbour, 
 395. Cahou City, Brandegee. Upper Arkansas, Porter. Ute Pass, Coul- 
 ter.. Not common. 
 
 PENTSTEMON GLABER, Pursh. Gr. Rev. I. c., p. 59. Very glabrous ; 
 stems 6'-3 high, usually several from the same root, stont ; leaves fleshy, 
 glaucous, sessile, entire, 2'-4' long, 4 // -9 // wide ; flowers large, showy, in 
 a . thyrsoid panicle, violet-purple, 12 // -15 // long; sepals broadly ovate, 
 submembrauaceous on the margin, obtuse or more or less pointed; corolla 
 bright purple, showy, widely dilated above, the limb shortly 2-lobed 
 with the lobes rounded and spreading equally, bearded in the throat ; 
 anthers loosely hairy, hirsutulous or glabrous, the divaricate cells dehis- 
 cent from the base nearly to the summit, but not expanded ; the sterile 
 filament short-hirsute toward the apex or glabrous. Hall & Harbour, 
 384. Monument Park, Porter. Plains near Denver, Dr. Smith. Com- 
 mon. 
 
 Var. ALPINTJS, Gr. (P. alpinus, Torr.) Dwarf, 4 / -12 / high, more strict, 
 sometimes pruinose-puberulent; sepals from an ovate base or oblong- 
 lanceolate, long acuminate. Parry. " Rocky Mountains on both sides." 
 Hoopes. 
 
 PENTSTEMON CYANANTHUS, Hook. Gr. Rev. 1. c., p. 60. (P. glaber, 
 var. cyananthus, Gr.) Glabrous; stems slender but sometimes stout- 
 l-2 high ; cauline leaves broadly ovate or oblong, acute or acurni, 
 nate, 2 / -4 / long, l'-2' broad ; thyrsoid panicle usually very short, 4' long- 
 sepals ovate-lanceolate with a long attenuated acumiuation ; otherwise 
 as in P. glaber. Platte River, Coulter. 
 
 Var. BRANDEGKEI, Porter. Minutely pubemlent except the peduncles 
 and flowers ; stem stout, erect, 1 J-2 high ; leaves opposite, very entire, 
 thick, coriaceous, veiny, the lower ones spatulate or ovate-lanceolate, 
 narrowed to the base, upper ones much larger, somewhat crowded, cor- 
 date-ovate, sessile, clasping and almost connate, finely ciliate on the mar- 
 gins, 2 / -3 / long, I'-IJ' broad; bracts of the ample thyrse (6' long) similar 
 but smaller; cymes 6-8-flowered ; calyx-segments broad-ovate, with scari- 
 ouserose-deuticulate margins, subulate-acuminate, glabrous; corolla I'-IJ' 
 long, abruptly veiitricose-campaimlate, the upper part and the rounded 
 lobes bright azure blue, paler or white beneath, slightly hairy in the 
 throat, smooth within ; sterile filament scantily bearded under the dilated 
 apex; capsule ovoid, acute. Sierra Mojado, Brandegee. 
 
 PENTSTEMON FREMONTI, Gr. Gr. Rev. I. c., p. 60. Pruinose puber- 
 uleut, a span or more high ; lower leaves spatulate, cauline lanceolate, 
 sessile; panicle strict, spike-form, naked, cymules approximate, many- 
 flowered, very short-peduucled ; sepals oblong-ovate, acute, membra- 
 nous on the margin ; corolla 9" long, narrowly funnel-form, scarcely 
 bilabiate ; anthers sparingly hirsute ; sterile filament dilated and bearded 
 at the apex. 
 
 Var. PARRYI, Gr. King's Rep. vol. 5, p. 218. Stem slender, 1- 
 2 high ; leaves lanceolate or ovate-lanceolate, 2' long, 4 // -9 // wide ; 
 panicle few-many-flowered, more or less interrupted, with the pedun- 
 
92 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 cles, 6"-12" long ; flowers purple or occasionally nearly white ; anthers 
 glabrous except along the dehiscence. Colorado, Parry. 
 
 PENTSTEMON C^ERULEUS, Nutt. Gr. Rev. 1. c., p. 61. (P. angustifolim, 
 Nutt.) A span high ; glabrous or the upper stem and leaves usually min- 
 utely pubescent ; leaves linear-lanceolate, thick, entire, sessile, erect, 
 crowded; sepals lanceolate, gradually acuminate, often ciliolate on the 
 margins, white-membranaceous; corolla 6" long, somewhat dilated, 
 scarcely 2-lipped, bright azure or purplish-blue ; anthers glabrous, often 
 with short- ciliate margins; sterile filament, usually dilated and yellow- 
 bearded at the apex. Foot-hills near Denver, Coulter. 
 
 PENTSTEMON ACUMINATUS, Dougl. Gr. Rev. 1. c., p. 61. Glabrous and 
 glaucous, 6'-18' high ; radical leaves spatulate, cauline lanceolate, oblong 
 or ovate-lanceolate, or the upper ones subcordate, rigid, glaucous ; thyr- 
 sus elongated, many-flowered, often secund ; sepals either ovate or lan- 
 ceolate, acute or acuminate; corolla Q"-W long, blue or purple, tube 
 gradually dilated upward, lobes rounded, flat, spreading; capsule very 
 sharply acuminate. Hall & Harbour, 386; Parry. Near Denver, Dr. 
 Smith. Colorado Springs, Porter. B. H. Smith. Monument Park and 
 Clear Creek Canon, Coulter. 
 
 PENTSTEMON SECUNDIFLORUS, Benth. DC. Prod, 10, p. 325. Glabrous, 
 pale, and somewhat glaucous, 12'-30' high; radical leaves petioled, ellip- 
 tic-spatulate or narrowly -lanceolate, obtuse or acute, upper ones lanceo- 
 late or linear-lanceolate, sessile, middle ones 3'-4' long, erect ; thyrsus 
 elongated, narrow, 6'-9' long, interrupted; cymes secund, few-many- 
 flowered; segments of the calyx oval-oblong, acute oracutish, with mem- 
 branous margins ; tube of the corolla more or less abruptly ampliated 
 below the middle; anthers glabrous or very minutely puberulent; 
 sterile filament dilated at the apex, not bearded, (bearded, Benth.) This 
 species is merged by Dr. Gray into the preceding one, Rev. Pentst.,p. 62, 
 but it seems to maintain its distinctive characters well. It is extremely 
 abundant on the plains and at lower elevations in the mountains. Canon 
 City, Brandegee. Denver, Dr. Smith. Georgetown, B. H. Smith. Colo- 
 rado Springs, Porter. Monument Park, Canby. 
 
 PENTSTEMON AMBIGUUS, Torr. Gr. Rev. 1. c., p. 64. Glabrous, l-2 
 high, paniculately branching from a ligneous base ; lower leaves linear, 
 attenuated at base ; upper ones subulate-filiform or acerose-subulate ; 
 racemes loosely-flowered ; corolla 5"-8" long, tube 6", often incurved, 
 scarcely dilated above, with the spreading limb, 6" in diameter ; sterile 
 filament glabrous. Southeastern Colorado, F. R. Diffenderffer. 
 
 PENTSTEMON C^ESPITOSUS, Nutt. Gr. Rev. 1. c., p. 66. Grayish puberu- 
 lent, depressed, branching from the base ; branches crowded, short, 2 / -6 / 
 long, decumbent or ascending, very leafy to the apex ; leaves 3"-12" 
 long, lanceolate or linear-spatulate, acute or submucronate, veiiiless, en- 
 tire ; peduncles axillary, short, secund, at length de-curved, spread- 
 ing, with 2 leafy bracts at the apex and 1-3 flowers ascending on short 
 pedicels ; sepals linear-lanceolate, rather broader and scarious-marglned 
 at the base ; corolla 6 /x -9 7/ long, bluish-purple, tubular, somewhat dilated 
 above and biplicate; limb shortly bilabiate, with nearly equal lobes; 
 sterile filament long-bearded. Middle elevations. Hall d; Harbour, 393; 
 Middle Park, Parry. South Park, Porter. Taylor River, Coulter. Canon 
 City, Brandegee. Canby. 
 
 PENTSTEMON ALBIDTJS, Nutt. Gen. 2, p. 53. Stem puberulent, 6'-9' 
 high; lower leaves petioled, oblong, obtuse, subentire, upper serrate, 
 lanceolate, glabrous or puberuleut; thyrsus oblong, subverticillately- 
 
SYNOPSIS OF THE FLORA OF COLORADO. 93 
 
 interrupted; cymes subsessile, few-flowered ; segments of tbe calyx lan- 
 ceolate, pubescent; tube of the corolla widened above, f long, less ven- 
 tricose than iu P. cristata ; beard of the sterile filament rather short, some- 
 what interrupted. a Plains; flowers white," Hall & Harbour, 389. 
 
 PENTSTEMON CRIST ATUS, Niitt. Gr.Rev. I. c., p. 67. Viscid-pubescent; 
 lower leaves oblanceolate, petioled, upper ones oblong-lanceolate, sessile, 
 clasping, entire or denticulate ; panicle strict, with short, appressed, 
 3-4-flowered peduncles; sepals linear-lanceolate, attenuate, very hirsute; 
 corolla 1' long, violet, broadly funnel-form above the calyx, somewhat 
 bilabiate, the lower lips and sterile filament strongly bearded with long 
 hairs ; anthers glabrous, expanding. Canon City, Brandegee. Pueblo, 
 Greene. The specimens differ from the typical form in having much 
 narrower, sometimes almost linear leaves. 
 
 PENTSTEMON PUBESCENS, Soland., var. GRACILIS, Gr. (P. gracilis, 
 Xutt.) Gratfs Rev. 1. c., p. 69. Nearly glabrous; cauline leaves and 
 thyrsus narrowed ; corolla usually more slender, not bearded. Canon 
 City? Brandegee. Colorado Springs and South Park, Porter. Monument 
 Park, Coulter. 
 
 PENTSTEMON HUMILIS, Nutt. Gr. Rev., 1. c., p. 69. Glabrous below 
 and somewhat glaucous, minutely viscid-pubescent above, 3'-10' high ; 
 lower leaves spatulate or oblauceolate, the upper oblong or linear- 
 oblong, sessile and clasping; all acute or acuminate, usually entire, 
 occasionally somewhat serrulate ; peduncles rather short, appressed, 
 2-8-tiowered; sepals ovate-lanceoate, with usually a slender herbaceous 
 recurved acuminatiou ; corol las 4"-8" long, deep blue, dilating upwards, 
 somewhat bilabiate, throat open and without folds; anthers glabrous, 
 expanding; sterile filament yellow-bearded. "Low mountains; an early 
 species," Hall & Harbour, 387. Plains of the Platte, Dr. Smith. Clear 
 Creek Canon, Coulter. Canon City, Brandegee. 
 
 PENTSTEMON GLATJCUS, Grah. Gr. Rev., 1. c., p. 70. Glabrous except 
 the viscid-pubescent inflorescence, -lJ high; leaves subglaucous, 
 denticulate or entire ; radical ones subovate, petioled, the. upper oblong- 
 lanceolate, dilated and clasping at the base; thyrse subcompact ; sepals 
 ovate-lanceolate; corolla I' long, widely and abruptly ventricose above 
 the base, the throat open and without folds, the lower lip slightly 
 longer and sparingly villous with long hairs, violet or lilac color ; anthers 
 glabrous and expanding ; sterile filament yellow-bearded. 
 
 Yar. STENOSEPALTJS, Gr. Sepals lanceolate with a long slender acu- 
 inination; thyrse short. Hall & Harbour, 399. Sangre de Cristo Pass, 
 Brandegee. Mount Lincoln, at 13,000 feet altitude, Coulter. 
 
 PENTSTEMON HALLII, Gr. Gr. Rev., I. c., p 7C. Stems numerous from 
 a creeping root-stock, 3'-5' high, glabrous except the inflorescence which 
 under the microscope is very minutely glandulose; leaves very enure, 
 pale, glaucous, linear-spatulate or linear, radical and lower cauline ones 
 attenuated at the base, l'-2' long, including the petiole, lJ"-4" wide; 
 thyrse or simple raceme 4-10-flowered ; pedicels short; sepals ovate or 
 oblong, with broad, often erose, scarious margins; corolla 7 // -9 // long, in- 
 flated, ventricose-campanulate from a very short base, bluish-purple, 
 lips short, about equal in length, upper one almost 2-lobed to the middle, 
 lower 3-lobed, glabrous within ; beard of the sterile filament short. 
 Hall & Harbour, 388. Wet Mountain Valley, Brandegee. Horse Shoe 
 Mountain, at 11,000 feet altitude, Coulter. Gray's Peak, Redfield. 
 
 PENTSTEMON HARBOURII, Gr. Gr. Rev., I. c., p. 71. Stems many from 
 a slender, creeping root-stock, low, 2'-4' long, pruiuose-puberuleut even 
 
94 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 to the top, leafy; leaves uniform, almost glabrous, thickish, obovate or 
 oblong, very obtuse, very entire or repand; pedicels short, alternate, 
 viscous-pubescent, as well as the calyx ; sepals ovate, shortly acuminate 
 or broadly lanceolate, margins not scarious; corolla purple, 1"-$" long; 
 tube cyliudraceous, limb shortly 2-lipped, upper lip deeply 2-lobed, 
 lower lip deeply 3-lobed, with a hispid beard in the throat; sterile fila- 
 ment dilated at the apex and bearded downwards; capsule scarce ex- 
 ceeding the calyx. " Mount Breckenridge on Blue River, west of the 
 main range, in the high alpine region near perpetual snow," Hall c(- 
 Harbour, 396. Brandegee. 
 
 PENTSTEMOK CONFEKTUS, Dougl. Or. Rev., 1. c., p. 72. Very glabrous, 
 erect, 1-1J high; lower leaves oblong-lanceolate, petioled, the upper 
 sessile and lanceolate or somewhat ovate, all entire; flowers densely 
 clustered in an interrupted spike, the upper cymes nearly sessile, 
 crowded, often reflexed; sepals broadly lanceolate or ovate, margins 
 white-scarious or erose-dentate or laciniate, acute or produced into a 
 long green acumination ; corolla 5"-$" long, sulphur-yellow, narrow, 
 somewhat bilabiate ; sterile filament bearded. 
 
 Var. O^ERULEO-PURPUREUS, Gr. Stems 6'-2 high; corolla deep 
 bluish-purple. Hall & Harbour, 391. Twin Lakes, Porter. Brandegee; 
 B. H. Smith. Abundant throughout the mountains in damp places. 
 Mount Lincoln, at 13,000 feet altitude, Coulter. 
 
 CmoNOPHiLA 1 JAMESTI, Beuth. Low, glabrous, from a thick root-stock ; 
 stem scape-form, 1/-4' bigh, with a pair of leaves above the middle, 
 terminated by a crowded spike of flowers; radical leaves tapering into 
 the expanded membranaceous, hyaline bases, spatulate or oblong-linear, 
 obtuse, very entire, thickish ; dowers u-4, crowded ; bracts opposite 
 ovate, connate at base, obtuse or acute, unequal, flower in the axil of 
 the larger one which nearly equals its tube ; flowers yellowish, on very 
 short pedicels; calyx 4^"-^" long, companulate, teeth broad, obtuse; 
 corolla a little longer, lower lip densely tomentose within. Plant dries 
 black. Hall & Harbour, 397. "High alpine, Pike's Peak, 7 ' Meehav. 
 Mount Lincoln, at 13,000 feet altitude, Coulter. 
 
 MIMULUS LUTEUS, L. DC. Prod. 10, p. 370. Smooth orviscid-puberu- 
 lent, ascending or erect, 2 / -4 high ; leaves numerous, erose-dentate or 
 denticulate, orbiculate, ovate, or suboblong, the lower loug-petioled and 
 often sublyrate, the upper sessile or cordate-amplexicaul, about 7-iierved, 
 shorter than the peduncles; calyx ovate, becoming inflated in fruit, 
 with ovate teeth, the upper one largest; tube of the dilated yellow 
 corolla twice longer than the calyx, the lower lip bearded. Very com- 
 mon in damp spots at middle elevations. _ffM & Harbour, 398 ; Bran- 
 degee j Porter Coulter. 
 
 MIMULUS JAMESII, Torr., var. FREMONTII, Benth. Pedicel slender, 
 longer than the leaf; flowers smaller. Hall & Harbour, 399. Cherry 
 Creek, near Denver, Dr. Smith. 
 
 MIMULUS FLORIBUNDUS, Gr. DC. Prod. 10, p. 372. Viscidly-pilose; 
 stem slender, 2 / -18 / long, diffusely branching at the base, ascending- 
 leaves petioled, 3'-18' long, ovate, dentate, or denticulate, lower sub- 
 cordate, somewhat pinnately 5-7 nerved ; peduncles axillary to nearly 
 
 1 CHIONOPHILA, Benth. in DC. Prod. 10, p. 1, 331. Calyx large, membranous, 4-5 toothed, 
 the fifth tooth smaller. Tube of the corolla scarcely exsert ; lips short, broad, upper one 
 emarginate, somewhat concave, lower spreading, short-tritid. Fertile stamens 4, 
 declined at base, at length ascending ; anthers glabrous ; cells confluent ; filament of 
 the fifth stamen, sterile, scarcely shorter than the others. Apex of the style slightly 
 stigmatose. Ovaries numerous in each cell. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 95 
 
 every leaf, solitary, slender, mostly longer than the leaves; aclyx ovate, 
 5-angled, with very short, subequal teeth, becoming much dilated ; cor- 
 olla yellow, 3"-4'Mong, twice longer than the calyx. Hall & Harbour, 
 400. Upper Arkansas, Porter. Grand Canon of the Arkansas, Brande- 
 yee. 
 
 MnirLUS RUBELLUS, Gr. Bot. Mex. Bound., p. 116. Annual, dwarf, '-3' 
 high, glabrous or viscid-puberulent ; stem erect, simple or much branched ; 
 leaves 2 // -6 // long, obovate or spatulate, narrowly oblong or lanceolate 
 or linear, 3-5 nerved, mostly entire, sessile and narrowed at base or 
 the lower short-petioled, about equaling the peduncles; calyx oblong. 
 l"-2" long, becoming somewhat dilated, the mouth squarely truncate, 
 with short equal teeth; corolla yellow, red or purple, small and scarcely 
 exserted or 2-3 times longer than the calyx and the dilated limb. " Sub- 
 alpine; scarce." Hall & Harbour, 401. 
 
 GRATIOLA VIRGINIANA, L. Platte Eiver, Coulter. 
 
 LIMOSELLA AQUATICA, L. u Low mountains," Rail & Harbour, 80; 
 Bra n degee ; Canby. 
 
 SYNTH YRIS PLANT AGUNEA, Benth. DC. Prod., 10, p. 455. Woolly-pu- 
 bescent, becoming smooth ; radical leaves oblong, crenate, thick, coria- 
 ceous, 3 / -6 / long, 2'-3' broad, abruptly narrowed at base and somewhat 
 decurrent on the petiole ; petioles '2'-3' long, somewhat pilose on the 
 veins and ribs ; scape G'-IU' high, furnished with numerous oblong or 
 orbicular, nearly sessile bracts; flowers in a long, dense spike, in fruit 
 6' in length ; fruit scarcely exceeding the round, ovate, persistent bracts. 
 Hall ib Harbour, 405; Canby. Chiaun Canon, IJte Pass, and South Park, 
 Porter. Este's Park, Coulter. At lower elevations. 
 
 SYNTHYRIS ALPINA, Gr. Sill. Jour., (N. S.,) 33, p. 125. Somewhat 
 woolly, becoming smooth; radical leaves elliptic or oval, sometimes 
 subcordate, closely crenate, l'-2', on slender petioles; scape 2 / -6 / high, 
 leafy-bracted; spike short, dense, in flower 9 // -12 // long ; sepals lanceo- 
 late, villous on the outside toward the edge with long hairs as well as the 
 bracts ; corolla 2-parted, upper lip very broad, erose, lower much 
 smaller, 2-3-parted, lobes narrow, purplish-blue ; stigma capitate ; sta- 
 mens exsert. High alpine. Parry, 255. Gray's Peak, Dr. Smith; Mee- 
 han. Chicago Lakes, at 13,000 feet attitude, C0*tor. Redjield. 
 
 VERONICA AMERICANA, Schwein. Hall & Harbou r, 408 ; Dr. Smith; 
 Porter ; Meehan; Coulter. 
 
 VERONICA ALPINA, L. Hall < Harbour, 407 ; Meehan ; Brandegee. 
 Mount Lincoln, at 14,000 feet altitude, Coulter. 
 
 VERONICA SERPYLLIFOLIA, L. Hall tf* Harbour, 406 ; Meehan. Clear 
 Creek Canon, at 9,000 feet altitude, Coulter. 
 
 VERONICA PEREGRINA, 'L. Monument Park, Coulter. 
 
 GERARDIA TENUIFOLIA, Vahl. Branches slender, erect, strict, 
 crowded. Xear Denver, Dr. Smith. Clear Creek, below Golden City, 
 Greene. 
 
 CASTILLEIA LINARI^EFOLIA, Benth. DC. Prod., 10, p. 532. Gray's Rev. 
 Sill. Jour., (N. S.,) 34, p. 335. Very glabrous, smooth or loosely woolly-pu- 
 bescent above; stems 2-4 high from a woody base, simple or branched, 
 somewhat glaucous, shining, rarely pubescent throughout; leaves 1' 3' 
 long, occasionally 3" -A" broad, 1 -nerved or more or less 3-nerved at 
 base, linear, entire or often 3-cleft or parted, narrowed at base, floral 
 ones scarlet-colored and acute ; spike interrupted ; flowers sessile or on 
 short peduncles; calyx incurved, J'-l 7 long, deeply cleft anteriorly, sub- 
 
96 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ulately 4-toothed at the apex, mostly exceeding the bracts, colored; 
 corolla 1/-2' long, nearly glabrous, bright scarlet; lobes of the lower lip 
 linear-subulate, the yellow galea usually I' or more in length or some- 
 times scarcely exsert. Canon City, Brandegee. Twin Lakes, Porter and 
 Coulter. Sangre de Cristo Range, Redfield. 
 
 CASTILLEIA BREVIFLORA, Gray (non Benth.) Gr. Rev. 1. c., p. 238. 
 (Etiahromfi breviflora, Nntt.) Low, subvillous or subcinereous, 3'-6' high, 
 branched from the base ; leaves mostly 3-5 cleft with linear lobes, the 
 floral ones not dilated or colored ; spikes dense, scarcely I' long in flow- 
 er; calyx equally cleft or moderately cleft in front, segments deeply 
 bind, obovoid-oblong, lobes lanceolate ; tube of the yellow corolla nearly 
 included, lower lip tri-saccate, cariuate, shortly 3-cleft, lobes oblong, ob- 
 tuse. Alpine. Hall & Harbour, 409 ; Parry, 1872. Gray's Peak, Dr. 
 Smith. 
 
 CASTILLEIA PARVIFLORA, Bong. Gr. Rev. 1. c., p. 336. Perennial, 
 pilose pubescent and hirsute throughout, scarcely hispid ; stems 3 / -20 / 
 high, usually numerous, simple or branched ; the lower leaves usually 
 entire and linear, upper ones 3-cleft or laciniately -pinnate, the floral ones 
 more or less dilated and nearly always colored, color deep red, flesh- 
 color, yellow, or rarely green ; calyx deeply cleft both above and below ; 
 the segments either eniarginately 2-lobed or deeply bifid ; lip of the 
 corolla very short, galea scarcely exceeding the calyx or exserted, 5"-6" 
 long. Sangre de Cristo Pass, Brandegee. North Park, Hayden. 
 
 CASTILLEIA INTEGRA, Gr. Rev. 1. c., p. 338. Loosely tomentose; 
 stems numerous from one root, erect, 6'-15' high, usually branched 
 above ; leaves linear or lance-linear, all very entire, l%'-2' in length, 
 whi rish-tomentose, widely spreading, the floral ones somewhat lobed, 
 rarely tritid, much enlarged and bright scarlet above; flowers 1 7 long; 
 segments of the calyx mostly bind; galea exserted. The. most abund- 
 ant species on the plains and. in the mountains as far west as the Snowy 
 Range. Hall & Harbour, 410. Denver, Dr. Smith. Clear Creek Cafion, 
 Pleasant Park, and Monument Park, Coulter. Colorado Springs and 
 Twin Lakes, Porter. 
 
 CASTILLEIA PALLID A, Kunth. Gr. Rev. c., p. 337. Subalpine. Canon 
 City, Brandegee. Clear Creek Canon and Weston's Pass, Coulter. Hall& 
 Harbour, 412. 
 
 Var. MINIATA, Gr. Rev. 1. c., p. 337. (C. miniata, Dougl.) Greener, gla- 
 brous below, taller, l-2 high ; floral leaves dull red ; galea usually 
 much exserted. Hall & Harbour, 411. The most common form at mid- 
 dle elevations. Canon City, Brandegee. Gumiison River, East River, 
 Sierra Madre Range, and South Park, Coulter. Meehan. North Park, 
 Hu/den. Denver, Dr. Smith ; B. H. Smith. Canby. Ute Pass and Twin 
 Lakes, Porter. 
 
 Var. ALPINA, Porter. Woolly- pubescent, 2' high, few-flowered ; flow- 
 ers almost concealed in the broad uucolored floral leaves. High alpine. 
 Summit of Pike's Peak, Porter. Mount Lincoln, at 12,000 feet altitude, 
 Co utter. 
 
 ORTHOCARPUS 1 LUTEUS, Nutt. DC. Prod., 10, p. 536. Stem hard, his- 
 
 1 ORTHOCARPUS, Nutt. Calyx tubular-campanulate, membranous at base, usually 
 sub-equ.illy 4-cleft or 4-toothed. Corolla-tube sleuder ; galea erect, entire, channeled, 
 the margin inflexed ; lower lip shorter, 3-plicate or 3-saccate, sub-entire at the apex or 
 with three erect teeth. Stamens with one anther-cell fixed by the middle, the other 
 pendulous, smaller or wanting. Capsule loculicidal. Seeds usually numerous and 
 small, with a loose, reticulated or pitted testa, the radicle usually pointing toward 
 the hiluui. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 97 
 
 pid, erect, 2'-15' high, simple or branched above, branches strict: leaves 
 linear-lanceolate, entire or trifid ; spike elongated, leafy, somewhat in- 
 terrupted : bracts oblong or ovate, entire or 3-lobed, rarely 5-lobed, seg- 
 ments acute or acutish ; calyx 3"-4" long with short lanceolate, acute 
 teeth a little shorter than the tube ; corolla yellow, pubescent, 6" long, 
 little exceeding the bracts ; capsule 3" long, obtuse, many-seeded ; seeds 
 small. Hall & Harbour, 413. Canon City, Brandegee. South Park, 
 Porter. Xortli Park, Hay den. Canby. Taylor liiver, Coulter. 
 
 BHIXANTHUS CRIST A-GALLI, L. Hall & Harbour, 422. Hooves. 
 
 PEDICULARIS CANADENSIS, L. "In the mountains at middle eleva- 
 tions, 17 Hall ct- Harbour, 416. South Park, Porter. Platte Kiver, Coulter. 
 Wet Mountain Valley, Red-field. 
 
 PEDICULARIS GR<EXLAXDiCA,Retz. DC. Prod., 10, p. 566. Erect, l-2o 
 high, glabrous ; stem simple, leafy ; leaves pinnateiy-parted, segments 
 lanceolate-linear, serrate; spikes elongated, 3'-S' long, many -flowered; 
 calyx 2"-3" long, tubular, 5-toothed, the upper tooth smallest, the 
 lateral ones with very shallow sinuses ; galea of the reddish corolla 
 arched, exceeding the calyx, produced into an elongated, subulate beak, 
 twice longer than the calyx, nearly straight or more usually becoming 
 strongly recurved upward and almost circulate. Hall & Harbour. 419 ; 
 Parry ; ('unity. Georgetown. Dr. HmitJt. Canon City, Brandegee. Mount 
 Lincoln, at 12,000 feet altitude. Coulter. 
 
 PEDICULARIS BRACTEOSA, Benth. DC. Prod., 10, p. 574. Glabrous or 
 scantily pilose upon the spike; stem erect, l-2 high, leafy; leaves 
 pinnately-parted, segments lanceolate, incisely-dentate or piuuatifid; 
 spike pedunculate, elongated, 2 / -8 / long, densely flowered ; the bracts 
 ovate, acuminate and somewhat membranous ; calyx-lobes lanceolate, 
 setaceous ; galea of the yellow corolla slightly incurved, not beaked, 
 hooded at the apex and. terminating in an obtuse, somewhat 2- toothed 
 projection ; lip much shorter. Hall t(- Harbour, 417; Parry. 
 
 PEDICULARIS RACEMOSA, Dougl. DC. Prod.. 10, p. 580. Glabrous: 
 steins numerous, simple or occasionally branched above, ascending, 1- 
 2 high, leafy ; leaves short-petioled, iy-4/ long, narrowly lanceolate, 
 doubly serrate with minute teeth; flowers axillary, in a loose, leafy ra- 
 ceme ; calyx cleft above, 2-toothed ; galea of the ochroleucous corolla 
 arched, beak long, subulate, incurved. " Subalpine ; common in pine 
 woods." Hall d- Harbour, 414 ; Parry. Mount La Plata, at 11.000 feet 
 altitude, and Horse Shoe Mountain, Coulter. 
 
 PEDICULARIS CRENULATA, Bentli. DC. Prod., 10, p. 568. Pubescent ; 
 stems erect, simple 6 / -12 / high ; leaves all linear-oblong, obtuse, doubly 
 crenate, 9"-15" long; spikes short, densely flowered; calyx cleft on the 
 upper side, minutely 2-3- toothed; galea hooded, subincurved, 2-toothed 
 under the apex. Ute Pass, Porter. Canon City, Brandegee. Canby . 
 Horse Shoe Mountain at 11.000 feet altitude, Coulter. South Park,#7? 
 <( Harbour, 415. 
 
 PEDICULARIS PARRYI, Gr. Kill. Jour. (X. &) 3:5, p. 250. Very smooth 
 except the ciliated bracts; stem 6'-l higlj, more or less bracted: leaves 
 linear-lanceolate, pectinate-piunatind, petioled, cauline ones small, 
 segments linear, acute, about 3" long, cartilaginous-serrate; bracts small, 
 trifid; flowers numerous, short-pedicelled, somewhat crowded in a 
 narrow spike, l'-2' long, of a dirty or faded yellow; calyx rneuibrana- 
 ceous, marked with 5-strije, at length subinflated, teeth 5, short, lance- 
 olate, very entire, lanulose within ; galea narrow, apex incurved, gradually 
 produced into a longish, emarginate beak which is somewhat decurved. 
 7 F c 
 
98 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 much surpassing the lower lip ; filaments very smooth. Hall d- Harbour, 
 420; Parry, 251. Canon City, Brandegee. Mount Lincoln, at 12,000 feet 
 altitude, and Western's Pass, Coulter. 
 
 PEDICULARIS SUDETICA, Willd. DC. Prod., 10, p. 508. Erect, simple, 
 8'-12' high, glabrous except the spike; lower leaves pinnately-parted, 
 narrowly lanceolate in outline; segments lanceolate, subincised-serrate 
 and creiiate, upper ones pinnatitid; spike short, densely hirsute-woolly; 
 calyx 5-toothed, teeth entire or the lateral denticulate; galea of the red- 
 dish-purple corolla arcuate, scarcely hooded, shortly and broadly subros- 
 trate, 2-toothed under the apex. 
 
 Var. Differs from the typical form in the smoother spikes and the lack 
 of teeth on the tip of the galea. Hall & Harbour, 421 ; Parry, 253. South 
 Park and Mount Lincoln, Coulter. 
 
 PEDICULARIS PROCERA, Gr. Stem l^-3 high, stout leafy, bearing 
 above a dense-flowered, softly pubescent spike 9'-18' long; leaves glab- 
 rous, pinnately-parted, segments lanceolate, laciniate-pinnatifid, lobes 
 serrate or incised, radical ones 1-1J long; bracts elongated, linear 
 .from an ovate-lanceolate base, lower ones pectinate-piunatitid, exceed- 
 ing the flowers; calyx about equally 5-cleft, lobes lanceolate, entire, 
 about half shorter than the tube; corolla 1' or' more long, striate, dirty 
 green; galea hoodedatthe apex, not beaked, truncate, 2-toothed, scarcely 
 equaling the shortly 3-lobed, somewhat spreading lip. Hall d Harbour, 
 418; Parry, 252; Brandegee. Weston's Pass, Coulter. 
 
 VERBENA HAST AT A, L. Canon City, Brandegee. 
 
 VERBENA BRACTEOSA, MX. Plains of the Platte, Coulter. Colorado 
 Springs, Porter. 
 
 VERBENA AUBLETIA, L. Plains near Denver and Saint Vrain Kiver, 
 Coulter. 
 
 VERBENA STRICTA, Vent. Common on the Arkansas at Pueblo, 
 Greene. 
 
 LIPPIA LANCEOLATA, MX. Purgatory River, 7>r. Bell. Eastern Colo- 
 rado, Porter. 
 
 JLABIAT.E. 
 
 TEUCRIUM CANADENSE, L. Canon City, Brandegee. 
 
 TEUCRIUM LACINIATUM, Ton. Ann. N. Y. Lye., 2, p. 231. Perennial; 
 stern suffrutescent, branched, smooth; leaves opposite, lower ones pin- 
 nately 5-parted, sessile, segments linear, rather obtuse, nearly smooth, 
 minutely reticulate, upper ones trifid, cuneate at base; flowers axillary, 
 solitary, on pedicels about 2" long, large in proportion to the plant ; 
 calyx subcampanulate, 5-cleft, smooth; segments lanceolate, acute, low- 
 est one 2-cleftor 3-toothed; stamens exserted, anthers roundish; nutlets 
 destitute of longitudinal, thickened ribs. Afterward referred by Dr. 
 Torrey to T. Cubense, L., from which it is shown by Dr. Gray to be 
 clearly distinct. Proe. Amer. Acad., May, 1872, 8, p. 372. Pueblo County, 
 1873, Greene. 
 
 MENTIIA CANADENSIS, L., var. GLABRATA, Benth. Near Denver, Dr. 
 Smith. Hall & Harbour, 425. Mountains west of Denver, Porter and 
 Coulter. 
 
 LYCOPUS SINITATUS, Ell. Gray in Proc. Am. Acad., Dec. 1870, 8, p. 280. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 99 
 
 /,. Kuro/Mt'nx, L., vsuc.xiiUiatuft, (Jr. Manual, p. 346.) Canon City, If ran- 
 de(/ee. 
 
 PYCNANTHEMUM: LANCEOLATOi, Pursh. Xear Denver, Dr. Smith. 
 
 C-ALAMrxTHA CLIXOPODIU:M:, Benth. Sierra Madre Range, at 10,000 
 feet altitude, Coulter. 
 
 HEDEOIMA IIISPIDA, Pursh. Hall & Harbour, 423. (H. hirta, Xutt.) 
 
 HEDEOMA DRU^IMOXDII, Benth. DC. Prod., 12, 245. Gray in Proc. Am. 
 Acad.i May, 1872, 8, p. 367. An nual,cinereous-puberulent or pubescent, 
 4'-6' high, branched from the base; leaves oval, oblong, or the upper 
 ones linear, obtuse, very entire, sessile or narrowed at the base into a 
 petiole; whorls few- flowered; calyx ovate, tubular, hispid, scarcely 2- 
 lipped. teeth all subulate-setaceous, conuiveut, erect after flowering and 
 more or less curved upward, lower ones twice longer than the upper, 
 more or less shorter than the corolla. Hall & Harbour, 424. Purgatory 
 Kiver, Dr. Bell. Median. 
 
 HEDEOMA PIPERITA, Benth. Gray, I. c.,- p. 306. Cinereous-pubescent 
 or puberulent; leaves ovate, obtuse, usually rounded at the base, 
 uppermost floral ones sometimes oblong, petiolate; whorls loose, few- 
 many-flowered ; calyx oblong- tubular, gibbous, hirsute, 2-lipped, upper 
 lip spreading, with subulate teeth, the lower with longer, more setaceous 
 erect teeth, about equaling the corolla. Bluffs of the Arkansas near 
 Pueblo, 1873, Greene. 
 
 SAL VIA LANCEOLATA, Willd. (V. trichostemmoidcs, Pursh.) Canescently 
 pubescent; stems 3' -15' high, herbaceous, ascending, branched; leaves 
 lanceolate or oblong-linear, l'-2' long, rather obtuse or acuminate, nar- 
 rowed at the base into a long slender petiole, sparsely and obtusely ser- 
 rulate in the middle; bracts subulate, a little longer than the short 
 pedicels; raceme simple. 2 / -4 / long, whorls about 2-flowered, all remote; 
 calyx tubular, striate, puberulent, enlarged in fruit, inflated at the base, 
 teeth acute; corolla blue, a little longer than the calyx, and with it 4" 
 long; style short-bearded. Hall cO Harbour, 426. Nar Denver, 7>r. 
 Smith. Plains around Colorado Springs, Porter; Median. 
 
 SALVIA PITCHERI, Torr. DC. Prod, 12, p. 302. Tomentose-pubesceut 
 or canescent: stem herbaceous, lj-2 high, erect, simple or branching 
 above; leaves oblong-lanceolate, ~or linear, acute, subserrate, narrowed 
 at the base, but scarcely petioled, somewhat tomentose beneath, smoother 
 above; raceme simple, elongated, (6') whorls distant, 6-15-flowered; 
 bracts lance-linear, much longer than the pedicels and often equaling the 
 calyx; calyx subsessile, tubular, striate, villose, teeth 3, broad, obtuse ; 
 corolla twice or more longer than the calyx, pubescent on the outside ; 
 style bearded. HaU d' Harbour, 427. Eastern Colorado, Porter; Dr. 
 Smith. 
 
 MONARDA ARiSTATA,Xutt. DC. Prod., 12, p. 363. Canescent, lhigh, 
 with numerous spreading branches; leaves linear or oblong-lanceolate, 
 narrowed at the base, sharply and remotely serrate, floral ones and outer 
 bracts sessile, somewhat colored, tipped with a long subulate awn ; 
 whorls many-flowered, compact, remote ; calyx striate. pubescent, beard- 
 ed in the throat, teeth nearly equal, long, subulate, pilose, penicillate at 
 the apex; tube of the corolla scarcely longer than the calyx-teeth. 
 Plains and base of the foot-hills, HaU& Harbour, 428. Colorado^Springs, 
 Porter. Near Denver, /?. H. Smith. Plains of the Platte, Coulter. Wet 
 Mountain Valley, Red field. 
 
 MONARDA FISTULOSA,L. Very common along streams on the plains 
 
100 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 aud extending into the mountains. Colorado Springs and Denver, /'or 
 ter. Canon City, Brandegee. B. H. Smith; Dr. Smith. 
 MONARDA PUNCTATA, L. Foot-hills west of Denver, Dr. Smith. 
 
 MONARDELLA 1 ODORATISSIMA, Beutll. DC. Prod., V2, p. 190. Stems 
 
 numerous, from a woody base, procumbent, O'-IO' high ; leaves subses- 
 sile, oblong-lanceolate, G"-12" long, very entire, or with a few denticu- 
 lations, acute at each end; hoary, or at length becoming green; heads 
 of flowers 9" -12" in diameter; outer bracts broadly ovate, very obtuse, 
 colored, equaling the elongated tubular calyces; lobes of the rose-col- 
 ored corolla oblong-linear, 3" long; calyx-teeth and margins of the bracts 
 softly villose. Gothic Mountain, August, Coulter. 
 
 LOPIIANTIIUS URTiCvEFOLius, Bentb. DC. Prod., 12, p. 368. Gla- 
 brous, erect, i,-4 high ; leaves cordate-ovate, creuate or serrate, green 
 upon both sides, obtuse or the uppermost acute, the floral ones sessile, 
 ovate and acute; bracts few, lanceolate or lance-linear, shorter than 
 the calyx; spikes dense, oblong, 2 / -4 / long ; calyx 2 // -G // long, incurved, 
 glabrous or puberulent, the throat oblique, the membranous teeth 
 colored, long-subulate-acuminate, the upper ones longest : corolla pur- 
 ple, short-exserted, the throat slightly inflated and limb short; stamens 
 much exserted. Sierra Madre liange, Coulter. 
 
 LopHAjrmrs AMSVTUS, Benth. Hull iC* Harbour, 42;). [Mains near 
 Denver, Coulter. 
 
 DRACOCEPHALUM PARVIFLORUM, Benth. Rail ti; Harbour, 4:>o. Twin 
 Lakes, Coulter. Upper Arkansas, Porter. Georgetown, I>r. Smith. 
 Canon of the Arkansas, Redfield. 
 
 BRUNELLA VULGAKLS, L. Canon City, Brandegee; Redfield. 
 
 SCUTELLARIA RESixosA, Torr. DC. Prod., 12, p. 427. Minutely glandu- 
 lar pubescent or puberulent, much branched from the base, 2 / -12 / high ; 
 leaves J'-l' long, short-petioled, broadly ovate, obtuse, entire or eremite, 
 rounded or cuneate at base, floral ones similar; flowers axillary, oppo- 
 site, secund, very variable in size; corolla blue, 2 // -l / long, densely vil- 
 lous, attenuate at base, usually more than four times longer than the 
 herbaceous calyx. Hall cf* Harbour, 431. Near Denver, Dr. Smith. 
 South Park, Porter. Canon City, Brandegee. Bear Creek, Clear Creek 
 and Saint Train River, Coulter*. 
 
 SCUTELLARIA G-ALERICULATA, L. Near Denver, Dr. Smith. Canon 
 City, Brandegee. Hall & Harbour, 432. 
 
 STACHYS PALUSTRLS; L., var. COEDATA Gr. (S. cordata.Iii&d.) Near 
 Denver, Dr. Smith. Cafioo City, Brandegee. Meehan. Near Colorado 
 Springs, Porter. Plains of the Platte, Coulter ; Redfield. 
 
 ONOSMODIUM CAROLINIANUM, DC. Near Denver, Dr. Smith. Canon 
 City, Brandegee. Plains of the Platte, Coulter. 
 
 LITHOSPERMUM ANGUSTIFOLIUM, MX. (Including L. longiflorum, 
 Spreng.) The latter, according to M. E. Bebb, Am. Nat. 7, p. 691, is only 
 
 A, Benth. Calyx tubular, often elongated, 10-13-nerved, 5-toothed ; 
 teeth short, nearly equal, straight, throat naked within ; corolla-tube equaling the 
 calyx or slightly exserted, the throat glabrous within; somewhat bilabiate, the upper 
 lip 2-cleft, the lower 3-cleft, and the lobes all oblong or linear, flat and nearly equal. 
 Stamens 4, somewhat equal, or the lower ones longer, straight, divergent, and exserted. 
 Anthers with two parallel cells, becoming divergent or divaricate. Styles very shortly 
 2-cleft. Nutlets drv. 
 
SYNOPSIS OF THE FLORA X^C^LQ&^OO. -. - -Vl 01 
 
 the spring-state of the former with larger flowers and greatly elongated 
 corolla tubes. Caiioii City, Brandegee. Meehan. Clear Creek. Coulter. 
 
 LiTHOSPKR3iTDi HiRTUM, Lehm. Xear Denver, Dr Smith. 
 
 LITHOSPERMUM piLOSUM, Xutt. Watson in King" >t Rep., vol. 5, 
 p. 238. Stems slender, branched, 1-1J high, strict, numerous from 
 a perennial root, hirsute, silicate; leaves broadly linear or linear-oblong, 
 l'-2' long, sub-acute, sessile, strigose and somewhat hispid; spikes very 
 leafy, elongated in fruit; flowers nearly sessile, yellow, <3" long, tube 
 much exceeding the linear sepals; calyx 5-parted, hirsute, lobes un- 
 equal. linear: nutlets \V long, smooth and shining. Hall tl* Harbour, 
 441. Parry. 21)5. Xear Denver, Dr. Smith ; B. H. Smith. -Bear Creek, 
 Pleasant Park, and Clear Creek Canon, Coulter. 
 
 MERTENSIA. PAXICVLATA, Don. Canon City, Brandegee; Parry. 
 
 MERTEXSIA SIBIRICA, Don. Gr. Eei'.llert. Sill. Jour., (X. & J34, p. 340. 
 Glaucescent, glabrous or subpubeseeut, 1-5 G high; cauliiie leaves 
 ovate or ovate-lanceolate, or often oblong-lanceolate, acute or acuminate, 
 mostly sessile or very short petioled ; calyx 5-parted, the lobes oblong or 
 oblong-linear, ciliate, obtuse, 2-4 times shorter than the corolla-tube, 
 Avhich is sparingly hairy or nearly glabrous within ; corolla 4"-6" in 
 length, limb 5-cleft, more than half longer than the tube ; filaments di- 
 lated, shorter than the anthers. Hall i(- Harbour, 442. Chicago Lakes, 
 at 11.000 feet altitude. Coulter. Wet Mountain Valley, Brandegee. Twin 
 Lakes, Porter. J>r Smith. Banks of mountain-streams ; variable. 
 
 MERTEXSIA ALPIXA, Don. </>. Rev. 1. c., p. 340. Glabrous or hirsute, 
 6//_12/' high : leaves spatulate-oblong, lanceolate or the uppermost oblong- 
 ovate. rather small and mostly acute ; calyx-segments ovate or oblong- 
 lanceolate and obtusish or linear-lanceolate and acute, ciliate, a little 
 shorter than the corolla-tube which equals the limb and is usually hairy 
 within: anthers inserted in the throat. Common on the plains and in the 
 mountains, and very variable. Hall cO Harbour, 444 and 445. Colorado 
 Springs and South Park, Porter. Canon City and AVet Mountain Valley, 
 Brandegee. Near Denver, Dr. Smith and B. H. Smith. Canbu. Horse 
 Shoe Mountain, at 11,000 feet altitude. Gray's Peak, at 12,000 feet, 
 Mount Lincoln, at lo.OOO feet, and Clear Creek Canon, at 0.000 feet, 
 Coulter. 
 
 MBRTEXSIA BREVISTYLA, Watson. Kimj* Rep., vol. 5, p. 239. t. 
 23. Low, 4 / -10 / high, pubescent with short, appressed. rigid hairs, the 
 lower surface of the leaves excepted; leaves oblong or oblong-lanceolate 
 or oblanceolate, very obtuse; flowers in a loose panicle; calyx deeply 5- 
 cleft or 5-parted, very hirsute, lobes oblong or ovate-lanceolate, usually 
 acute ; corolla-tube short, but little exceeding the calyx and rarely as 
 long as the deep blue limb; anthers inserted near the base of the tube 
 and included within it; style very short. Hall i(- Harbour, 443. 
 
 ERiTRicimni 1 YILLOSOI, DC. Prodr.. 10, p. 126. Stems 3 f -V high, 
 
 M, Schr;i(l. Calyx 5-parttMl. Corolla salvcrform, the throat closed l>y 
 small obtuse scales. Stamens and style included. Nutlets 4. attached laterally, (usii- 
 ally near the base) the surface of insertion very narrow, imperforate at base, ilat (or 
 convex) anteriorly, the angles smooth or rarely creuate. Mostly annual, with entire 
 Ami commonly alternate leaves, the usually very small blue or white flowers in lateral 
 or axillary spieate racemes. DiHering- from 3yo9oti in the quiucuncial aestivation 
 of the corolla and the more or less lateral insertion of the nutlets, which are also usu- 
 ally rngo.se or granulate upon the back, and from EcJiinnapennnm in the attachment of 
 the nutlets (in most cases) not extending above the middle of the style, the nutlets not 
 dilated below, prickles rare and not barbed, and the attachment (if the seed ventral 
 and not at the apex. ])<'. Prodr. 
 
FLORA OF COLORADO. 
 
 loosely branched from the base and caespitose, rooting below, the flower- 
 ing shoots elongated, leafy, erect, pubescent; leaves elliptic-oblong, 
 acute, sparingly villous with long silky hairs; racemes in pairs, erect, 
 several-flowered, bracteate at base; nutlets with indexed, ciliate teeth 
 on the margins. 
 
 Var. ARETIOLDES, Hook. Densely c;espitose, 3" -2' high, covered with 
 soft silky hairs; leaves densely imbricated below, elliptical-lanceolate, 
 acute; racemes few-flowered, short-exserted ; tube of the corolla scarcely 
 exceeding the calyx, limb bright blue, l"-3" in diameter; nutlets nearly 
 V in length, concave on the back, the toothed margin conspicuous. 
 High alpine. Hall & Harbour, 440; Parry, 278. James' Peak, at 12,000 
 feet altitude, Chicago Lakes, at 13,000 feet, and Mount Lincoln, at 14,000 
 feet, Coulter. Saugre de Cristo Pass, Hrandegee. Median. Gray's Peak, 
 at 12-13,000 feet altitude, RedfieM. 
 
 ERITRICHIUM ANGUSTIFOLIUM, Ton-., Pacif. E. R. #wr., 5, p. 363. 
 Annual, very hispid, with spreading hairs; stem 3'-! high, suberect, 
 widely branched; leaves linear; racemes terminating the branches, 
 usually forked and at length elongated; flowers sessile, bractless; calyx 
 2^-3" long in fruit, very hispid with yellowish hairs, lobes lanceolate- 
 linear ; corolla white, C^-12 77 long, falling early ; stamens inserted near 
 the base on very short filaments; nutlets 1-4, oblong, acute, V long, 
 convex and minutely papillose on the back, attached to the style to the 
 middle by a ventral groove. Near Denver and Colorado Springs, Porter. 
 
 ERITRICHIUM CRASSISEPALUM, T. & G. Pacif. R. R. Sum\, 2, p. 171. 
 Annual, very hispid, with spreading hairs; stem much branched from 
 the base, branches ascending, 3'-o' high; leaves obovate-lauceolate, 
 rather obtuse; racemes bracteate except the upper portion; fructiferous 
 calyx ventricose at base, closed and contracted above the middle, the 
 segments thickened and indurated on the back, finely pilose on the mar- 
 gins, with large, strong, hispid hairs on the back ; nutlets heteromor- 
 phous, ovate, convex on the back, 3 of them muriculate-granulate, the 
 4th larger and nearly or quite glabrous. Hall & Harbour. 434. Denver 
 and Colorado Springs, Porter. Canon City, Brandegce. 
 
 ERITRICHIUM GLOMERATUM, DC., Prod. 10, p. 131. Perennial or bien- 
 nial; stem simple, erect, 6'-lS' high, usually solitary and rather stout 
 and rigid, very hirsute with spreading hairs, leafy especially at base : 
 leaves 2'-4' long, alternate, oblong or linear-spatulate or ol lanceolate, 
 sub acute, hirsute and usually more or less appressed, pubescent ; spike- 
 lets 5-9 flowered, lateral axillary, clustered, more or less peduncled, and 
 usually bifurcated, and the upper ones sessile ; flowers 2 // -4 // long, 
 nearly sessile ; calyx very hispid, 5-parted, the linear-lanceolate lobes 
 equaling the corolla-tube, much enlarged in fruit; limb of the white co- 
 rolla broad and expanded, truncated scales of the throat conspicuous ; 
 nutlets large, 1J" long, ovate and narrowed above, but obtuse, more or 
 less rugose and tuberculated on the back, which is surrounded by an 
 acute, slightly raised margin, sulcate ventrally and attached to the 
 elongated style to the middle. Hall & Harbour, 438 in part. Colorado 
 Springs, Porter. 
 
 Yar. VIRGATUM, Porter, (E. virgatum, Porter, Haydeti's Rep., 1870, p. 
 479.) Stout ; stein erect, 2-3 high, very hispid ; inflorescence much 
 elongated, virgate, spike-like, l-2 in length; cymes many, conglomer- 
 ated, few-flowered, lower ones short-peduncled, upper ones sessile, very 
 much shorter than the long, spreading, bracteal leaves, which become 
 narrowly linear above. This variety is very common on the plains at 
 
SYNOPSIS OF THE FLORA OF COLORADO. 103 
 
 tlie base of the mountains and among the foot-hills. Colorado Springs, 
 Monument Park, and Ute Pass, Porter. Clear Creek Canon, Coulter. 
 
 ERITRICHIIDI JAMESII, Torr., (Jlyosotis suffruticosa, Torr. in Ann. 
 X. Y. Lye. 2, p. 225.) Hirsute, much branched from a suffruticose base ; 
 branches G'-IO' high; leaves linear-lanceolate, tapering to the base, l'-2' 
 long; spikes terminal, numerous; flowers on very short pedicels; calyx 
 campanulate, at first scarcely longer than the tube of the corolla, but in 
 fruit elongated and closed, segments ovate ; corolla ochroleucous, tube 
 shorter than the calyx-teeth, spreading limb 2 // -3 // wide, lobes very ob- 
 tuse; nutlets 4, similar, depressed, conniving at the top, but separated 
 at the sides, very convex and smooth on the back, shining, edges very- 
 acute, ventral suture adhering to the style above the middle. Hall & 
 Harbour, 435. Plains near Denver, Dr. Smith. Colorado Springs, Por- 
 ter. Canon City, Brandcyce. Meelian. Plains of the Platte. Coulter. 
 
 KmixospERMOi DEFLEXUM, Lehm., var., FLORIBUKDUM, Watson. (E. 
 floribundum, Lehm.) Biennial ; stem erect, 2-4 high, fistulous, branched 
 villous with spreading hairs ; leaves oblong-lanceolate, obtuse or acute r 
 ciliate at base, hirsute-pubescent ; racemes erect, spreading, bifid, brae- 
 teolate, with deflexed pedicels ; calyx-lobes ovate, shorter than the bluish 
 or white corolla; nutlets compressed, with a single marginal row of 
 barbed prickles which are connate at ba.se, the dorsal surface granulate 
 or shortly pilose or nearly smooth. Xear Denver, Dr. Smith. Plains of 
 the Platte, Coulter. Wet Mountain Valley, Brandegee. Colorado Springs, 
 Porter. B. H. Smith. 
 
 Einirrvi Ki:D;>\vsKii,Leh]ii. Xear Denver, Dr. Smith ; B.H. 
 Canon City, Bmndegee. Abundant on the plains, Porter; 
 Coulter. 
 
 HELIOTEOPIOI C UK ASS A vie or, L. Hall & Harbour, 192. 
 
 HELIOTR OPIUM COXVOLVULACELTI, Gr. Canesceut with appressecl 
 scabrous pubescence, branching from a suffrutesceiit base, brandies 
 weak and spreading, G'-9' high ; leaves ovate and lance-ovate, 9"-!' 
 long, ciliate on the margins, petioles short, about 3" long; flowers 
 scattered along the leafy branches, short-peduncled ; calyx-lobes subu- 
 late; corolla salver-form, tube 3"-4" in length, narrow, spreading limb 
 G"-9" long, somewhat 5-angled, throat naked ; nutlets 4, approximate 
 in pairs, angled, oblique, hairy, aduate to the style. Hall tl* Harbour, 
 436. 
 
 IIYDROPHYLLACE.E. 
 
 HYDUOPHYLLTM VIRGIXICTM, L. Mountains west of Denver, Dr. 
 Smith. Canon City, Brandegee. ClearCreek Canon at 9.000 feet altitude, 
 Coulter ; Redfleld. 
 
 ELLISIA XYCTELEA, L. Canon City, Brandegee. 
 
 PIIACELIA CIRCIXATA, Jacq. DC. Prod. 9, p. 298. Perennial, hispid: 
 stems erect or ascending, G'-20' high, branching or subsimple ; leaves 
 petioled, 1/-3' long, simple or pinnate, the 3-5 leaflets distinct or the 
 uppermost confluent, terminal one much larger, ovate to narrow-lance- 
 olate, acute, entire, or obscurely serrulate, usually strongly nerved, on 
 the upper side the appressed strigose hairs between the nerves, on the 
 lower side chiefly upon the nerves : racemes densely many-flowered, 
 strongly circmate; calyx-lobes oblong or linear, erect, acute: corolla 
 blue or nearly white, 2 // -3 // long, somewhat exceeding the calyx ; 
 stamens exserted : filaments hairy : capsule 2" long, very hispid with 
 
104 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 erect hairs, shorter than the calyx; seeds often solitary, deeply pitted. 
 Hall <G Harbour, 430. Georgetown, Dr. ftmith. Denver, Porter. Plains 
 of the Platte, Coulter. 
 
 PIIACELIA INTEGKBIFOLIA, Torr. DC. Prod., 9, p. 290. Annual, erect, 
 '-15' high, branching above and sometimes at the base, viscidly glandu- 
 lar pubescent ; leaves l'-2' long, varying from oblong to ovate, cordate 
 or truncate at base, simple or crenately-dentate or donbly serrate, or 
 sometimes more or less deeply pinnatifid, and the segments often 
 toothed, the upper at times nearly sessile ; sepals ovate, ciliate-hispid 
 and glandular ; corolla -segments oblong, the appendages short and en- 
 circling the base of the filaments; stamens exserted, naked; style 
 united to the middle; ovary oblong, hairy; capsule globose, minutely 
 pubescent and glandular, equaling or slightly exceeding the calyx ; seeds 
 4, minutely warted on the back and transversely ridged on the face. 
 Southeastern Colorado. F. IL Diffenderffer. 
 
 PHACELIA POPEI, Torr. & Gr.Pacif. R. R. Surv. 2, p. 172, t. 10. Vis- 
 cidly pubescent, hispidulous with spreading hairs; stems 4'-l high, 
 branching from a biennial root ; leaves bipiimately parted or pinnately 
 cut, 2 / -4 / long, segments pinnatifid, 3 y/ -10 /7 long, or the lower ones re- 
 duced in size, lobes 5-9, short, obtuse; spikes corymbose, densely- 
 flowered ; segments of the calyx spatulate, about half the length of the 
 white campanulate corolla and a little longer than the globose capsule ; 
 stamens at length much exserted ; filaments naked ; seeds 4, oval, with 
 the inner face strongly bilunate, the central keel veiy prominent, pitted, 
 1J" long. Hall & Harbour, 440. Xear Denver, Coulter. Gray's Peak, 
 Dr. Smith. 
 
 PHACELIA TANACETIFOLIA, Benth. DC. Prod. 9,}). 200. Annual, 3'-2- 
 high, suberect ; branches lax and slender, more or less scabrous-pubes- 
 cent, or the stem and branches glabrate ; leaves variable, 2 / -6 / long, 
 1-2-pinnatifid, the 3-7 pairs of segments oblong and incised dentate : 
 calyx-lobes linear or lanceolate, usually dilated and foliaceous above, 
 very pilose, especially on the margins ; corolla campanulate, 3" long, 
 scarcely exceeding the calyx, the appendages small, and encircling the 
 filaments ; style hairy at base, bifurcate to below the middle ; ovary 
 hairy, 4-ovuled ; capsule 2" long, ovate, acute, pubescent ; seeds li" 
 long, pitted. Wet Mountain Valley, Brandegee. South Park, Coulter. 
 
 PHACELIA NEO-MEXICANA, Thurber., Bot. Mex. Bound. Surr., p. 143. 
 Stem. erect, l-2 high, hispidly-pilose and viscidly-pubescent ; leaves 
 pinnatisect, 3 / -4 / long, thin, the segments rather distant and unequal, 
 about I' long, incised-dentate, lobes ovate, subdentate, mostly obtuse ; 
 racemes spike-form, densely- flowered, corymbose ; flowers subsessile : 
 calyx not enlarged in fruit, lobes oblong f corolla scarce twice longer 
 than the calyx, small, campauulate, margin minutely erose dentate : 
 stamens scarcely exserted; filaments smooth ; style cleft to the middle, 
 hairy beloAv ; capsule globose-ovate, 3" long ; seeds very minutely pitted! 
 nearly 3" in length. Plains of the Platte, Coulter. Garden of the Gods, 
 Porter. 
 
 PIIACELIA SERICEA, Gr. (Eutocasericea, Grah.7>(7. Protf.,9,p. 204.) 
 Perennial, canescent with a somewhat silky pubescence appressed upon 
 the leaves; steins G'-2 high, rather stout, simple, terminating in a nar- 
 row, compound raceme; leaves mostly oblong, 2 / -3 / long, incised-pin- 
 natifid, segments coarsely cut or entire, petioles hispid-ciliate; racemes 
 mostly short-peduncled, \-\J long in fruit, forming a compound raceme, 
 3 / -12 / in length; calyx-lobes linear, exceeding the pedicels, shorter 
 than the corolla which is 3" long, campanulate, blue or rarely white, 
 
SYNOPSIS OF THE FLORA OF COLORADO. 105 
 
 persis.eut, the appendages conspicuous, nearly as long as the tube and 
 distinct from the filaments; stamens 3 times longer than the corolla, the 
 anthers small and roundish; style bifid at the apex; capsule pubescent, 
 ovate-oblong, acute, 3" long, about 16-seeded; seeds pitted. Hall it* 
 Harbour, 447. Sangre de Cristo Kange, Brandegee. Gray's Peak, Dr. 
 Smith. Clear Creek Canon, Coulter; Red field. 
 
 XAMA 1 DicnoTOMA, Ruiz & Pav. Gray in Proc. Am. Acad., 8, p. 283. 
 More or less viscously pubescent : corolla not, or but little, surpassing 
 the leaves ; capsule ovate or short-oblong ; seeds strongly rugose-pitted, 
 i"-4" long, oval-oblong. 
 
 Var. ANGUSTIFOLIA, Gray. /. c., ]). L'84. Leaves linear-lanceolate. S. 
 Colorado, Hayden ; Hoopcx. 
 
 POL.E3ION1ACE/E. 
 
 PHLOX CANESCENfc, T. & G. Or. Rev. Polemon, Proc. Amer. Acacl., Dec., 
 1870, v.8, p. 253. Dwarf and matted-erespitose, with a woody, perennial, 
 much-branched base which is usually covered with the dead leaves of 
 previous seasons ; the branchlets densely leafy up to the solitary, sessile 
 flowers, woolly-caneseent; leaves 3"-4" long, evergreen, rigid, subulate, 
 more or less acerose, scarious-connate at base, usually strongly revolute 
 on the margin, soon spreading or somewhat squarrose-recurved from the 
 appressed base; tube of the white corolla exceeding the calyx, the ob- 
 ovate lobes entire or emargiuate, 3"-4" long; ovules solitary. Canon 
 City, Brandegee. 
 
 PHLOX O^ESPITOSA, Nutt. Or. Rev. I. c., 253. Dwarf, densely or rather 
 loosely caespitose: leaves rigid, linear-subulate, or oblong-linear, 4"-6" 
 long, pungent, hispid on the thickened, somewhat revolute margins, 
 otherwise smooth or sparingly glandular; corolla-tube more or less ex- 
 ceeding the calyx, lobes obovate, entire, 3" long. 
 
 Yar. CONDENSATA, Gr. Densely crespitose, iy~2' high ; leaves short, 
 2 // -3 // long, very closely crowded, erect, imbricated. Gray's Peak, at 
 13,000 feet i altitude, Coulter. Hall & Harbour ; Parry. 
 
 PHLOX DOUGLASII, Hook. Gr. Rer. I. c., 254. Crespitose, very much 
 branched, pubescent or smoothish; leaves rather rigid, acerose, usually 
 spreading, less crowded; margins naked or somewhat hirsute-ciliate at 
 base; flowers subsessile; corolla purple or white, tube exceeding the 
 calyx, lobes obovate, entire, 3" long. Hall iO Harbour. 453. 
 
 PHLOX LCXNGIFOLIA, Xutt. Gr. Rer. I. c.. 255. Perennial, woody only 
 at the base, glabrous or pubescent; steins erector ascending; leaves 
 slightly rigid, not fascicled, linear or very narrowly linear, sometimes 
 lanceolate, 1/-3' long ; flowers solitary or subcymose, loug-peduncled; 
 corolla white or pink, tube longer than the narrow, subulate calyx-teeth; 
 style elongated and often equaling the tube. Xear Long's Peak, 
 Coulter. Sangre de Cristo llange, .ttrandegee. 
 
 CoLLcmiA 2 LIXEARIS, Xutt. Gr. Rci\ I. c.. 259. Annual, more or less 
 
 1 XAMA, L. Calyx 5 sepalcd. persistent. Corolla tuVmlar-fmmelfovm. Stamens sub- 
 included. Styles '>. A\ith rather obtuse stigmas. Capsuls 2-L-elled. locnlicidal, the 
 septum bearing t^o laminar phicenta 1 projectiii" 1 into each cell from the axis, -svhicli 
 are at rirst united, at length free. Low, annual branching herbs, perennial or some- 
 what woody nt the base, variously pubescent, with alternate or rarely opposite entire 
 leaves, and axillary and tei iiiinal Mowers. Choisy, DC. Prod, 10, p. 182. 
 
 2 C 1 OLLOMiA, Xutt. Corolla tubular-fuimel-forui or salver-form, with a more or less 
 dilated throat. Filaments slender, unequally inserted, usually protruded. Ovules 
 solitary, few or many in each cell. Seed-coat developing mucilage and projecting spiral 
 threads (spiricles) when wetted, (except in C. r//v<e*7/#.) Annuals or semi-biennials, 
 with alternate leaves, which are usually pinnately incised or divided, and with clus- 
 tered or sometimes scattered flowers. 
 
106 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 viscid- pubescent, becoming- glabrate below, glandular above; .stems erect, 
 simple or brandling, 6' -IS 1 high; leaves sessile, lanceolate, very entire; 
 heads crowded; lobes of the calyx triangular-lanceolate, acute; corolla, 
 light blue or nearly white, 6" long, slender, but little enlarged at the 
 throat, the limb small; ovules solitary; seeds with very numerous spi- 
 racles. Hall & Harbour, 404. Canon City, Kramle-gee. Monument Park 
 and plains of the Platte, Coulter. 
 
 COLLOMIA GrRACiLis, Dougl. Gr. Rev. I. c., 259. Annual, viscid-pubes- 
 cent, at length much branched and spreading, 2'-6 / high; leaves sessile, 
 lanceolate or linear or the lowest oval or obovate, entire; flowers rather 
 loosely cymose or scattered; calyx rounded at the base and nearly 
 5-parted, with linear-subulate segments ^corolla 5" long, purple or violet, 
 nearly salver-form, the narrow tube yellowish and seldom exceeding the 
 calyx; seeds without spiracles. Hall d* Harbour. 403. Plains near Den- 
 ver, Coulter. 
 
 COLLOMIA LONGiFLOHA, Gr. Gr. Rev. 1. e., 261. Annual, very smooth, 
 erect, 6'-2 high, much branched, panicnlately ramose, loosely flowered; 
 peduncles 1-flowered, generally slender, subcorymbose ; leaves apiculate, 
 piunately 3-7-parted, segments linear or almost filiform; lobes of the 
 calyx shorter than the tube, subulate; corolla white, salver- form, tube 
 very long, JV-18", not widened above, lobes orbicular or ovate, some- 
 times apiculate at the apex; filaments included, sometimes 2-3 unequally 
 inserted at the throat; anthers oblong, cells about 10-12-ovuled. On the 
 plains around Denver, Dr. Smith. Colorado Springs, Porter. Canon 
 City, Brandegce. 
 
 GiLiA 1 NUDICAULLS, Gr. Gr. Rei\ I c.,266. Annual, very glabrous, 
 l'-4' high; stem leafless from the cotyledons to the capitate inflorescence 
 which is subtended by an involucre of several ovate-lanceolate or lanceo- 
 late, sessile, entire, foliaceous bracts, from whose axils sometimes 1 or 2 
 smaller heads are produced on short peduncles; corolla white, pink or 
 yellow, salver-form, tube 2 // -3 // long, slender, exceeding the calyx, the 
 cuneate lobes l"-2" long, somewhat undulate-toothed or decidedly 1-3 
 dentate at the broad apex; anthers sessile in the someAvhat dilated 
 throat, short, included; ovaries numerous. South Park. Hall. 
 
 GILIA XUTTALLII, Gr. Gr. Rev. 1. c., 267. Puberuleiit; stems nu- 
 merous from a perennial woody base, slender, simple or loosely branched, 
 8 / -12 / high ; leaves opposite, mostly shorter than the internodes, pal- 
 mately-parted into 3-7 narrow-linear, mucronate or acerose segments, 
 G'M)" long ; flowers crowded into a leafy cluster ; corolla white with a 
 yellow throat, fragrant, salver-form, with a short dilated funnel- form 
 throat, the tube puberuleiit, scarce exceeding the narrow calyx : fila- 
 ments short, inserted in the throat, scarcely exserted ; anthers ovate-ob- 
 long; cells 2-ovuled. Figured by Watson, King's, Rep., vol. .">. PL 
 25. Near Mount Lincoln, Coulter. 
 
 GILIA PUNGENS, Beuth. Gr. Rev. 1. c., 268. Viscid-pubescent, puber- 
 tilent or glabrate, much branched from woody stems ; leaves alternate, 
 short, erect or a little spreading, rigid, fascicled in the axils, palmately 
 3-7-parted, segments entire and with the calyx-lobes acerose or subulate 
 and pungent ; flowers solitary or few in a terminal cluster ; corolla pink, 
 white or yellow, salver-form, tube at length longer than the calyx, the 
 
 J GiLiA, Ruiz. & Pav. Corolla from salver- form or funnel-form to compannlate or 
 rotate. Stamens equally inserted in or below the throat or sinuses of the corolla and 
 mostly equal; filaments not declined, naked (rarely pubescent) at the base. Ovules 
 sometimes solitary, commonly few or many in each cell. Seed-coat (with few excep- 
 tions) developing mucilage or spiracles when wetted. Herbs, or in a-few cases. siillrn- 
 Ticose; leaves, &c., various. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 107 
 
 wedge-obovate lobes 2"-4 / ' loiig ; anthers in the some wh at funnel-form 
 throat oblong, cells 8-10 ovuled; seed-coat close, without mucilage or 
 spiracles. Hall & Harbour, 463. Near Denver, Dr. Smith. Upper Ar- 
 kansas, Porter. E. H. Smith. Canon City, Brandegee. Twin Lakes, 
 Coulter. 
 
 GILIA MINIMA, Gr. Or. Rev. 1. c., 269. Low, J'-l' high, simple or 
 branched, smoothish ; leaves pimiately divided with the acerose, spines- 
 cent segments widely divaricate ; bracts densely crowded, almost hiding 
 the small white flowers, nearly glabrous ; calyx slightly hairy in the 
 sinuses, teeth unequal, entire or two of them somewhat divided ; corolla 
 li" long, about equaling the calyx tube ; stamens shorter than the cor- 
 olla-lobes ; cells 1-3 ovuled, 1-seeded. Colorado, Vasey. 
 
 GLLIA SPICATA, Nutt. Gr. Rev. 1. c. 7 273. Perennial ; stem stout, erect, 
 4'-10' high, bearing many heads crowded in a long virgate interrupted 
 leafy spike, densely woolly-tomentose ; leaves trifld or very entire, 
 scarcely pointed, alternate, becoming smooth; lobes of the. corolla ob- 
 long-ovate, shorter" than the more or less exserted tube ; anthers sub- 
 sessile in the throat, cells 4-6-ovuled. Hall & Harbour, 400. Northern 
 Colorado, Hayden. 
 
 Yar. CAPITATA, Gr. Smaller; leaves verv entire; flowers in a single 
 terminal head. Hall iFHarbour, 461. Weston's Pass, at 11-12,000 feet 
 altitude, Coulter. 
 
 GILIA COXGESTA, Hook. Gr. Rev. I. c., 274. Perennial, more or 1 >s 
 woolly-pubescent, bearing single, terminal or few corymbose and close 
 heads; stems 3'-12' high; leaves very entire or 3-7 pinnately-parted, 
 with 3-7 narrowly-linear segments, divisions aristulate-mucronate; co- 
 rolla salver-form, white, the tube about equaling the oval lobes, not ex- 
 ceeding the usually awned calyx-segments; filaments inserted in the 
 sinuses, equaling or exceeding the anthers ; cells 2-4-ovuled. South 
 Park, Canby. Gray's Peak, B. H. Smith. Hoopes. 
 
 GILIA AGGREGATA, Spreng. Gr. Rev. I. c., 275. Biennial, more or 
 less pubescent; stems l-4 high, less leafy above and loosely branch- 
 ing; leaves alternate, pinnately-parted, with linear, mucronulate-apicu- 
 late segments ; panicle contracted in to a virgate spike or loose with open 
 branches ; calyx usually glandular, lobes subulate ; corolla deep scarlet, 
 varying to light pink or even white or variegated and spotted, tubular- 
 funnel-form, 6"-20" long, with ovate or lanceolate-acute, widely spread- 
 ing or soon recurved lobes ; filaments either exserted or included ; 
 anthers oval or short-oblong; ovules numerous; seeds mucilaginous and 
 spiraliferous. Very common on the plains on dry slopes and among the 
 foot-hills up to an elevation of 9,000 feet. Hall & Harbour 459; Parry ; 
 Dr. Smith; B.H. Smith; Canby. North Park, Hayden. Porter; Coulter. 
 
 GILIA PIXNATIFLDA, Nirtt. Gr. Rev. I. c., 276. Minutely viscid-glan- 
 dular, especially above ; stem 6' '-2 high ; leaves pinnately-piimatifid, 
 narrowly lanceolate in outline, lobes uniform, oblong, 3" long, curved 
 upward, apiculate, rarely cleft ; panicle ample, thyrsoid or sometimes 
 widely spreading and corymbose ; bracts linear or subulate, few ; corolla 
 salver-form, white or bluish, tube about twice longer than the calyx, a 
 little longer than its obovate lobes ; filaments inserted beneath the sinu- 
 ses, much exserted ; anthers ovate ; cells 6-8 ovuled ; seeds neither mu- 
 cilaginous nor spiraliferous. Hall & Harbour, 456. South Park, Canby. 
 Common on the plains around Denver, Dr. Smith. Colorado Springs, 
 Porter. Canon City, Brandegee. B. H. Smith. Pleasunt Park and La 
 Plata Mountain, at 11,000 feet altitude, Coulter. 
 
108 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 GILIA INCONSPICUA, Dougl. Gr. Rev. I. c., 278. Annual, erect, 4'-li >/ 
 high, glabrate or viscid-glandular and pubescent, branched and loosely 
 panicled; leaves alternate, the lower 1-2 pinnatifid or pinnate-toothed; 
 flowers scattered, on slender pedicels, purple or blue, rarely white, 3"-5" 
 long, funnel-form, with the throat more or less dilated, 2-3 times the 
 length of the calyx, the tube little or not at all exserted, the lobes ovate 
 or obovate, mostly exceeding the stamens; filaments slender; cells 
 many ovuled ; verv variable. Canon City, Brandegee. Hall & Harbour, 
 457." 
 
 POLEMONIUM CONFERTUM, Gr. Or. Rev. I. c., 280. Perennial, G'-8' 
 high, glandular- viscid and musk-scented, woolly-pubescent above ; leaf- 
 lets very numerous, small, V-A" long, mostly as if wh oiled or fascicled, 
 being 2-5 divided and sessile, segments either broadly oval or linear- 
 oblong; flowers capitate-crowded, at length raceinose-spicate, some- 
 what nodding, honey-scented ; lobes of the calyx narrow, twice shorter 
 than the cylindrical or oblong tube ; corolla 8 // -12 // long, blue, the nar- 
 row funnel-form tube longer than the calyx and 2-3 times longer than 
 its rounded lobes ; filaments barely hairy and scarcely dilated at base. 
 Hall & Harbour, 450 and 451. Gray's Peak, at 12,000 feet altitude and 
 Horse Shoe Mountain, at 11,000 feet, Coulter. B. If. Smith ; 'Red-field. 
 
 Var. MELLITUM, Gr. Laxer in leaflets and inflorescence, with a pale 
 or whitish corolla V long, the lobes one-fourth the length of the narrow 
 tubes. Alpine, 2 / -3 / high. Hall & Harbour. Sangre do Cristo Range, 
 Brandegee. 
 
 POLEMONIUM YISCOSUM, Nutt. Gr. Rev. I. c., 280. Low, 3'-4' high, 
 pubescent and very viscid-glandular; leaflets very entire,, ovate or 
 rounded ; flowers subcorymbose; calyx subcampanulate, lobes elongated- 
 lanceolate, (broadish, Gray;} corolla-tube equaling the calyx, not exceed- 
 ing its own lobes. Gray's Peak, B. H. Smith. 
 
 POLEMONIUM C^ERULEUM, l^.Hall & Harbour, 449. Twin Lakes, 
 Co niter / Porter. 
 
 Tar. FOLIOSISSIMTJM, Gr. Gr. Eev. I. c., 281. Very viscid-pubescent; 
 stems 2 high, with the corymbose branches very leafy to the top; leaf- 
 lets often confluent on a wing-margined rachis; stamens and style mostly 
 shorter than the smaller white or blue corolla, which is twice longer 
 than the calyx. Hall & Harbour, 448. AVet Mountain Valley, Brande- 
 gee. Plains^of the Platte, Coulter. South Park, Porter. 
 
 POLEMONIUM HUMILE, Willd. (P.pulchellum,T>\iiige.' 7 P. RichardsoniL 
 Grab.; P. capitatum, Beiith.; P. pulclierrimum, Hook.) Gr. Rev. I. c., 281. 
 Dwarf, 4'-S 7 high, branching from the base, softly glandular-pubescent ; 
 stems i-2 leaved ; leaflets ovate or oblong-ovate", acute, small ; flowers 
 subcorymbose, few, on rather long, slender pedicels, small, blue, tube 
 shorter than the calyx ; calyx cleft below the middle ; ovules 2-4 ; seeds 
 1-2 in each cell. Hall & Harbour, 452 ; Parry. Wet Mountain Valley, 
 Brandegee. Chicago Lakes, at 12,000 feet altitude, and Horse Shoe 
 Mountain, at 11,000 feet, Coulter. Subalpine woods. 
 
 CONVOI/FUtACEJE. 
 
 IPOM^EA LEPTOPHYLLA, Torr. in Fremont, 1st Rep., p. 1)4 ; Emory's 
 Rep., p. 148, t. 11. Annual(?), 2-3 high, much branched from the base; 
 branches long, spreading and prostrate, angular, glabrous; leaves 
 linear and lanceolate-linear, attenuated at both ends, strongly veined, 
 glabrous, mucronate-apiculate, short-petioled: peduncles 1-3 -flowered, 
 
SYNOPSIS OF THE FLORA OF COLORADO. 109 
 
 A'-l. 1 / iii length; sepals appressed, broadly ovate, very obtuse, with a 
 minute inucro, 5" long; corolla funnel-form, 2'-2' long, purple; sta- 
 mens inserted near the base, filaments villous at the base, anthers ob- 
 long-linear, large; style as long as the stamens; stigma 2-lobed, lobes 
 capitate; ovary 2-ceiled, with 2 ovules in each cell. On the Platte 
 near Denver aiid on the mesas around Colorado Springs, Porter and Dr. 
 Smith. 
 
 CONVOLVULUS LOB ATUS, Eng. & Gr. PL Lindh., p. 44. (('. haxtatu*. 
 Xutt. Trans. Amer. Phil 8oe., (n. ser.,) 5, p. 194, -non Thurb. C.yiittallii, 
 Torr. in Emory 8 Rep., p. 1 49.) Boot perennial ; stem twining, herbaceous 
 and pubescent ; leaves petiolate, on either surface covered Avith a short 
 hoary and silky pubescence, the primary ones simply hastate, the rest 
 partly palmated, about 2' long, commonly producing on either side of the 
 base two lateral, retiexed and toothed, or almost entire lobes, the cen- 
 tral segment more than twice their length and double their breadth ; 
 peduncles solitary, mostly 2-flowered, much longer than the leaves, the 
 pedicels each producing 2 bracts; segments of the 5-leaved calyx exter- 
 nally pubescent, imbricated, oval and obtuse, tinged with purple; corolla 
 rose-colored; stigmas 2, filiform; capsule 2-celled, cells 2-seeded. 
 Oaiion City, Brandegee. 
 
 CALYSTEGIA SEPIUM, K. Br. Along the Platte near Denver and 
 Colorado Springs, Porter. Pleasant Park, Coulter. 
 
 EVOLYULUS ARGEXTEUS, Pursh. Hall it- Harbour, 579. Canon City, 
 Brandegee. Plains of the Platte, Coulter. Colorado Springs, Porter. 
 
 CUSCUTA ARVENSIS, Beyrich. Eng. Monog., Trans, Saint Louis Aead., 
 vol. 1, p. 494. Var. pentagons Eng. /. c., p. 494. Calyx thin and shining : 
 lobes orbicular, as long or longer than the shallow tube of the corolla, 
 forming, where they join, 5 projecting angles. Hall & Harbour, 4G4. 
 
 CUSCUTA DECORA, Eng. 1. c., p. 501. On Psoralea, near Denver, Dr. 
 Smith. Canon City, Brandegee. Plains, Porter. 
 
 CUSCUTA GRONOYII, YVilld. Eng. I c., p. 507. Canon City, Brande- 
 gee. Manitou Springs, Porter ; climbing high on Clematis It gust ic (folia. 
 Foot of the Spanish Peaks, Huertano County, Greene. 
 
 CUSCUTA CUSPIDATA, Eng. I c., p. 509. Inflorescence loosely panicu- 
 late, with many sterile hyaline bracts 011 the pedicels and at the base of the 
 calyx; flowers pediceled, meinbrauaceous, about 2" long; sepals free, 
 imbricate, ovate or orbicular, cuspidate or sometimes obtuse, like the 
 surrounding sterile bracts ; ovary oval, Avith a thick stylopodium ; cap- 
 sule thick and ^landless at the apex ; seeds about 4" long, obovato, 
 compressed, rostrate, with a very short oval, mostly transverse liilum ; 
 withered corolla covering the capsule like a hood. Parry, 273. 
 
 SOLANACEA.E. 
 
 SOLANUM TKIFLOKIM, Xutt. Gen. 1, p. 128. Stem unarmed, herba- 
 ceous, procumbent, hirsutulous ; leaves petiolate, pinnatifid, segments 
 acute, entire, or dentate, with broad sinuses ; peduncles nearly opposite 
 the leaves, 2-3-flowered ; calyx about 5-parted, lobes linear-oblong : 
 corolla small, white, with re volute lobes ; berry globose, about the size 
 of a cherry, when ripe blackish-brown. Buffalo Peaks, Coulter. Colo- 
 rado Springs, Porter. Hall & Harbour, 407. Denver, Dr. Smith. 
 
 SOLANU3I NIGRU3I, L. Canon City, Brandegee. Greene. 
 
 SOLANUM ROSTHATUM, Duiial. DC. Prod., 13, p. 329. Stem herba- 
 ceous, 2-3 high, much -branched, armed with strong, straight, yellow 
 
110 , SYNOPSIS OF THE FLORA OF COLORADO. 
 
 spines and pilose throughout with cinereous-stellate hairs; leaves pctioled, 
 spiny, pbovate in outline, 2'-3' long, 5-7 lobed, lobes obovate, obtuse ; 
 racemes 2 / -3 / long, 5-8-flowered ; peduncles! 7 long; pedicels 3"-4" long, 
 1-flowered, longer in fruit ; calyx villous, globose-cup-form, tube very- 
 spiny, longer spines 6" in length ; corolla yellow, about 5-cleft, the lobes 
 broadly ovate, acute, plicate ; stamens 5, unequal; anthers declined, one 
 
 City, Brandegee. Porter. Plains of the Platte, Coulter. 
 
 SOLANUM HETERODOXUM, Dunal. DC. Prod., 13, p. 331. In most 
 points like the preceding, but the leaves are smaller, less deeply lobed 
 and on longer petioles; the yellow spines are shorter; flowers corym- 
 bosely clustered, 3-5 ; corolla blue, small, 5"-6" in diameter, plicate, 
 hirsute-pubescent without, tube short, limb 5-cleft ; stamens 5, unequal, 
 half as long as the corolla; filaments short, smooth; berry globose, at 
 first green, then black, 2-celled. On the plains near Greeley, Porter. 
 
 PHYSALIS ANGULATA, L. Canon City, Brandegee. Denver, JV, 
 Smith. 
 
 PHYSALIS PUBESCENS, L. Canon City, Brandegee. 
 
 PHYSALIS VISCOSA, L. Canon City, Brandegee. Colorado Springs, 
 Porter. 
 
 PHYSALIS PENNSYLVANIA, L., var/ LANCEOLATA, Gr Plains of the 
 Platte and Pleasant Park, Coulter. Canon City, Brandegee. Denver, Dr. 
 Smith. Ute Pass, Porter. 
 
 PHYSALIS LOBATA, Torr. Ann. N. Y. Lye., 2, p. 220. Much branched 
 from the base; branches prostrate, decumbent or ascending, smooth, 
 angular, often 12 / -18 / long ; leaves oblong or ovate, irregularly lobed or 
 ivpand, sometimes lyrate, lobes very obtuse, abruptly narrowed into a 
 petiole, solitary or in pairs, nearly" smooth; flowers solitary, nodding, on 
 filiform peduncles about half as long as the leaves; calyx subcampanu- 
 late, with 5 acute lobes, minutely tomentose at the tips and margins, 
 often covered as well as the pedicels with minute white granules, about 
 2 J" in diameter ; corolla campamdate-rotate, purple or ochroleucous, 9" 
 in diameter; stamens 5, filaments shorter than the corolla, smooth. 
 Fructiferous calyx much inflated and larger than the berry, 1' long and 
 I' wide. Hall & Harbour, 4(>G. Colorado Springs, Porter. Canon City, 
 Brandegee. 
 
 WiTHANiA 1 (?) CORONOPUS, Torr. Bot. Mex. Bound., p.{155. (Sola- 
 tium Coronopm, Dunal.) Annual, erect or spreading, branched above; 
 leaves lanceolate or linear-lanceolate, sessile, tapering to the base, l'-2' 
 long, nearly entire, toothed or deeply pinnatiticl ; flowers solitary or in 
 pairs on slender pedicels Avhich are at length reflexed ; corolla dull yel- 
 low, "-" in diameter; fruit globose, size of a large pea, nearly white 
 when mature, covered or more by the calyx. Canon City, Brandegee. 
 Pueblo, Greene. 
 
 NICOTIAN A ATTENUATA, Torr. " Annual, glutinous-pubescent or 
 
 1 WITHANIA, Pauquy. Calyx campanulate, 5-cleft; lobes subulate, inflated after 
 flowering, more or less covering the berry. Corolla campanulate, funnel-form or 
 subrotate, longer than the calyx, 5-cleft. Stamens 5, inserted on the tube of the 
 corolla, equal or large ; filaments subulate, often dilated at the base, naked or squa- 
 mose; anthers yellow, oblong, equal to or shorter than the filaments. Ovavv ovate- 
 globose, smooth, closely surrounded at base by a thin glaiidulose, annular' disk, 2- 
 celled. Placentae, adnate to the dissepiment ; ovules many. Style simple, straight, 
 subulate, equal to the stamens or a little longer. Stigma capitate. I Jerry globose, v>- 
 eelled. Seeds many, subreniform. Embryo fleshy, subeircular. DC. Prodi; 13. 
 
 
SYNOPSIS OF THE FLORA OF COLORADO. Ill 
 
 somewhat glabrate, erect. l-3 high, .branched ; leaves oblong-lance- 
 olate or the uppermost linear, acuminate, attenuate into a petiole, 
 entire or obscurely repaud-dentate; lower ones 4'-6' long and l'-2' wide, 
 the upper ones proportionately narrower ; flowers in loose terminal race- 
 mes; calyx 3" long, ttibular-campanulate, teeth short, triangular, acute, 
 equal; corolla narrow funnel-form, I' long, the short limbs spreading or 
 more usually erect and closed; capsule 3"-5" long, exceeding the calyx, 
 ovate, acute, 2-valved, valves bifid ; seeds pitted." Watson in King's 
 Rep., vol. 5,2). i>7<>. pi. 27. Gray's Peak, Dr. Smith. 
 
 GENT1ANACEJE. 
 
 GENTLANA AMAKKLLA. L. DC. Prod., 9, p. 95. (G. acuta, MX.; Stem 
 slender, erect, simple, or branched, 2'-10 / high; lowest leaves oval-spat- 
 ulate. upper ones ovate-lanceolate, sessile and sub-clasping, margins 
 scabrous; cyme mostly compound, raceme-like; calyx 5-cleft, lobes lance- 
 olate, somewhat unequal, shorter than the cylindrical tube of the corolla; 
 corolla pale blue, without folds, fringed at the base of the limb, lobes 
 elliptic-lanceolate, shorter than the tube; ovary oblong- linear, sessile. 
 Hall & Harbour, 473: Parry; Canby. Twin Lakes and Sierra Madre 
 Range, Coulter. Subalpiue. 
 
 Var. STRICTA, Watson, (G. acuta, MX. var. stricta, Griseb., DC. Prod., 
 9, p. 96.J Stem 2-4 high ; cymes raceme-like, axillary, strict, elongated, 
 erect; Sowers when dried becoming yellow. Mountains west of Denver, 
 B. H. Smith. Wet Mountain Valley, Brandegee. 
 
 GENTIANA HETEROSEPALA, Eng. Tranx. Saint Louix Acad., 1, p. 215. 
 Annual, erect, simple, 4 / -16 / high, few-flowered, glabrous; lowest leaves 
 obovate-spatulate, -1^' long, upper ones ovate, broad at the base, ses- 
 sile, acute or sub-obtuse, margin minutely scabrous; flowers solitary or 
 fascicled in the axils, on peduncles of unequal length, (3"-lS",) pale blue, 
 6"-8" long; calyx 5-clelt, two of the lobes large, ovate, acute, nearly 
 equaling the corolla, the rest shorter and linear- subulate; corolla spar- 
 ingly-bearded, lobes linear-oblong, obtuse, spreading, half as long as the 
 tube; anthers ovate-cordate; pistil linear. Sierra Madre Bange, Coulter. 
 
 GENTIANA DETONSA, Fries. Hall tf- Harbour, 471. AVet Mountain 
 Valley, Brandegee. B. H. Smith. Mount Elbert, near Twin Lakes, at 
 10.000 feet altitude, Coulter. 
 
 GENTIANA BARBELLATA, Eng. in Iran*. I. c., 2, t. 11. Stems 1-3 from 
 a perennial caudex, very smooth, 1-flowered, 2 / -4 / high ; leaves fleshy, 
 obtuse, with a very narrow, cartilaginous, crenulate margin, lowest linear- 
 oblong or spatulate, attenuated into a petiole sheathing at the base, 
 1' long, cauline few, linear, connate at base, lower pair elongated, at- 
 tenuate at base, the uppermost (2-4) broader at base, involucre-like 
 below the sub-sessile flower, acute or acuminate; calyx 4-cleft, lobes 
 triangular-lanceolate, scarcely longer than the tube, much exceeding the 
 tube of the corolla, 'J long, outer ones a little broader, with a mem- 
 branous margin, mostly dentate; lobes of the deep azure-blue corolla 
 linear-oblong, obtuse, erect-spreading, with the margins short-ciliate 
 half way up, dentate above, tube deeply cauipanulate, greenish-yellow 
 within; lower-part of the purplish-brown filaments attached in the mid- 
 dle, the free edges beset with long and slender fringes, glands between 
 the bases of the filaments conspicuous; ovary ovate, attenuate at base : 
 stigma seini-orbieulate, sessile: seeds squamulose. Mount Flora, in the 
 Snowy Eange, Parry. Sierra Madre Range, Coulter. 
 
 GENTIANA TENELLA, Fries. DC. Prod., 9, p. 98. Stem branching at 
 
112 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 base; pedicels 1-flowered, frequently 2' high ; lowest leaves spatulate, 
 upper ones few, oblong; calyx deeply 5-parted, segments mostly unequal, 
 obtuse, at length shorter than the cylindrical tube of the corolla ; lobes 
 of the deep blue corolla, ovate, acutish, about equaling the tube. 
 Gray's Peak, Greene. August, 1872. 
 
 GENTIANA IIOIILIS, Stev. 7)0. Prod., 9, p. 106. Stems numerous, l'-2' 
 high, laxly branched from the base; branches 1-flowered; leaves smooth 
 with white margins, more or less apiculate; lowest round-ovate, upper 
 ones lance-oblong, at first crowded and imbricated on the stems; calyx 
 f>-cleft; lobes ovate-lanceolate, erect, shorter than the scarcely enlarged 
 tube of the corolla; corolla blue, lobes ovate, half the length of the 
 tube; folds entire, rounded, a little shorter than the lobes; style none; 
 capsule obovate or somewhat globose, attenuated at the base, rounded 
 at the apex. Alpine Parry. Long's Peak, at 9.000 feet altitude, June 2, 
 Cottlter. 
 
 GENTIANA PHOSTUATA, Hanike. ])C. Prod., i), p. 100. Var. AMERI- 
 CANA, En gel in. Steins simple, 0"-2' high, slender; leaves oval-spatulate, 
 mostly obtuse, not pointed, smooth on the margin ; flowers .small, 4- 
 parted, deep blue; teeth of the calyx 5, erect, ovate-lanceolate, acute, 
 shorter than the little-enlarged tube of the corolla; tube of the corolla 
 tAvice longer than the ovate lobes, folds often more than half the length 
 of the lobes, nearly entire; style short; capsule oblong-linear, base at- 
 tenuated into a short stipe. Hall & Harbour, 475; Parry. 
 
 GENTIANA FRIG IDA, Hamke. DC.Pro<7.,9,p.lll. Perennial; stem often 
 solitary, ascending; leaves spatulate-linear, obtuse, smooth on the mar- 
 gin ; flowers 'sub-solitary, terminal ; calyx 5-cleft, the lobes oblong-linear, 
 half as long as the corolla; corolla plaited, glandless and beardless, nar- 
 rowly obconic, whitish, with blue spots, lobes short, ovate, 3 times longer 
 than the entire folds; anthers free; testa slightly winged; capsule at 
 length stipitate. 
 
 Var. ALGIDA, Pall. Stem tfsually taller, with the flowers, from IJ'-S' 
 high; leaves broader; flowers !-;>, pediceled, l'-2' long, more tinged 
 with purple: calyx somewhat unequal and split; lobes of the corolla 
 longer. High alpine. Hall & Harbour, 472. Parry, 305. Summit of Pike's 
 Peak, Canby. Gray's Peak, Dr. Smith ; B. H. Smith. Mount La Plata, 
 at 14,000 feet altitude, Coulter. 
 
 GENTIANA AFFINIS, Griseb. DC. l*ro<L, 9, p. 114. Perennial ; stems clus- 
 tered, ascending 8'-20' high; lower leaves obovate-oblong, obtuse, the 
 upper lanceolate, rather acute, scabrous on the margins; flowers solitary 
 and pediceled, or clustered and sub-sessile; calyx 5-cleft, lobes oblong- 
 linear or sometimes dilated, very variable, often almost wanting, rarely all- 
 present; corolla blue, beardless and glandless, narrowly clavate, open, 
 twice longer than the calyx, the lobes oblong, obtuse, thrice longer than 
 the cleft folds; stigmas connate or twisted or diverging; anthers free; 
 testa slightly winged; seeds orbicular or oblong, winged or wingless. 
 7/aM(fr77<r/rZ>0Hr,468and4()9. Xorth Park, Hay fen. Parry, 439 ; Canby; 
 Dr. Smith; B.H. Smith. Wet Mountain Valley \Brandeyee\ Twin Lakes 
 and Sierra Madre Range, Coulter. 
 
 GENTIANA PARRYi,Engelm. Tram. Saint Lo-ui* Acad., l,p. 218. Peren- 
 nial; stems 1 or several, ascending or erect, 4 / -9 / high, simple, leafy, 
 few-flowered ; leaves somewhat glaucous, broad at base, sessile, rounded- 
 ovate, ovate or ovate-lanceolate, 10"-15" long, 3"-IO" wide, 3-nerved, 
 the uppermost carinate and boat-shaped, involucrate to the large, sessile 
 flowers which are 15"-18" long, very deep purple, greenish below, 
 widening upward, with lobes a third as long as the tube; calyx 5-cleft, 
 
SYNOPSIS OF THE FLORA OF COLORADO. 113 
 
 membranous, entire, the lobes linear, shorter than the tube; tube of 
 the open corolla obconie, twice longer than the calyx, the erect broadly 
 obovate lobes very shortly acute; ovary lanceolate, stipitate.. Subal- 
 pine. Hall & Harbour, 470; Parry; Canby. Gray's Peak, Dr. Smith ; 
 B. H. Smith. Xorth Park, Haydeti. Twin Lakes, at 10,000 feet eleva- 
 tion, Coulter. 
 
 FRASERA SPECIOSA, Dougl. Biennial, stein stout, erect, 3-5 high, 
 strict, usually simple, glabrous, not sulcate ; leaves in fours, thick, acut 
 ish or acute, 7-9 nerved, the lowest oblong-lanceolate, G'-9' long, 2' wide, 
 attenuate into a long petiole, the cauline connate at base, the uppermost 
 linear ; the racemose cyme densely-flowered, elongated ; flowers 1' in 
 diameter, the petals bearded at the base between the filaments ; calyx- 
 segments linear, acuminate, rather shorter than the whitish, punctate 
 petals ; glands in pairs, elliptic-oblong ; filaments dilated at base, 
 scarcely united ; style about equaling the ovary. Hall & Harbour, 553. 
 Monument Park, Coulter. Ute Pass, Porter. Abundant at lower and 
 middle elevations. 
 
 SwERTiA 1 PERENNIS, L. DC. Prod., 9, p. 132. Steins erect, G'-20' high, 
 few-many-flowered ; lower leaves oblong-elliptic, long-petioled, cauline 
 ones opposite, ovate oblong, obtusish ; flowers erect, G"-3" in diameter, 
 steel-blue, with darker spots ; corolla-segments coriaceous, elliptic-oblong, 
 acutish, twice longer than the lanceolate calyx-lobes ; glands in pairs, 
 orbicular, the fimbriate crest distinct; stigma reniform, sulcate; seeds 
 winged. Hall i(- Harbour, 47G. Gray's Peak, Dr. Smith. Parry; Canby. 
 Twin Lakes, at 10,000 feet altitude, Coulter. 
 
 PLEUROGYNE 2 ROTATA,Griseb. DC.Pw7.,9,p. 122. Amrual, simple, 
 erect, 3'-6' high, bearing 1-few flowers at the summit ; lowest leaves 
 spatulate, the uppermost linear, obtuse ; segments of the calyx lance- 
 linear, equaling the corolla ; ovary acute. " South Park, subalpine."' 
 Hall & Harbour, 477. 
 
 APOCYNACE.E. 
 
 APOCYNUM AZS-DROSJEMIFOLIUM, L. Plains of the Platte, near Den- 
 ver, Dr. Smith and Coulter. 
 
 APOCYNUM CANNABINUM, L. Plains of the Platte, Coulter. Wet 
 Mountain Valley, Brandeyee. Median. 
 
 ASCLEPIADACE-S:. 
 
 ASCLEPIAS SPECIOSA, Torr. Ann. N. Y. Lye., 2, p. 218. Tomentose, 
 becoming glabrate ; stem simple, 2-5 high ; leaves '-S f long, cordate- 
 ovate, acute, short-petioled or the uppermost nearly sessile, abruptly 
 apiculate ; umbels axillary and terminal, solitary, many-flowered, the 
 short peduncles and the pedicels often densely toinentose ; flowers light 
 purple ; corolla-lobes ovate, acutish, reflexed ; hoods of the crown 6" 
 long, ovate, long-acuminate, bidentate at the base within, thrice longer 
 than the stigma and the compressed, incurved horn ; pods 4' long, 1' in 
 diameter. Plains near Denver, B. H. Smith. Colorado Springs, Porter. 
 Plains of the Platte, Coulter. 
 
 1 SWERTIA, L. Flowers 5- (or sometimes 4-) uierous. Calyx-segments united at the 
 very base, valvate. Corolla withering, rotate, without corona or folds, glands fimbriate 
 on the margin. Stamens inserted on the throat ; filaments equal at base : anthers at 
 length incumbent, nodding. Stigma terminal, seated on the ovary, continuous, einar- 
 ginate-reiiifonn. Capsule 1-celled, '2-valved, septicidal. Seeds numerous, attached to 
 the valves. De CandoUe. 
 
 2 PLEUROGYXE, Escholtz. As in Sicertia, except that the two lateral stigmas are 
 decurrent upon the margins of the valves and glaudulose above. 
 
 SF C 
 
114 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ASCLEPIAS JAMESII, Torr. Bot. Hex. Bound., p. 162. Very smooth, 
 somewhat glaucous; stem stout, l-2 high; leaves orbicular or orbie- 
 ular-obovate, subcoriaceous, retuse or emarginate, cordate at the base, 
 very short-petioled, 3'-4' long, 2J'-3 J' wide, abruptly pointed ; umbels 
 many-flowered, short-peduncled ; corolla greenish, segments broadly 
 ovate ; hoods purplish, dilated, obliquely-truncated ; the horn with the 
 acute point exserted and projected partly over the stigma ; pods ovoid, 
 smooth. Gallon City, Brandegee. 
 
 ASCLEPIAS BRACHYSTEPPIANA, Eiig. Bot. 1. c., p. 103. Stem branch- 
 ing, 8'-12' high ; leaves opposite, liuear-lanceolate, abruptly narrowed 
 at the base into a short petiole, gradually tapering to a long, narrow 
 point, 3'-6' long ; umbels 3-8 ; peduncles shorter than the pedicels, 
 many-flowered ; corolla dull-purple, segments ovate-oblong, reflexed ; 
 hoods broader than long, toothed on the inner margins ; falciform pro- 
 cess vertical ; pods oblong, smooth, 2' long, acuminate. On the plains. 
 Hall & Harbour, 478. 
 
 ASCLEPIAS OVALIFOLIA, Decaisne. Hall & Harbour, 480. Canon 
 City, Brandegee. Upper Arkansas, Porter. Monument Park, Coulter. 
 
 ASCLEPIAS TUBEROSA, L. Caiion City, Brandegee. 
 
 ASCLEPIAS VERTICILLATA, L. Canon City, Brandegee. Eastern Col- 
 orado, Dr. Smith. 
 
 Var. Dwarf, 4' 6' high, branched from the base ; stems very leafy 
 with crowded, filiform leaves ; umbels corymbose at the summit. Hall 
 & Harbour, 481. A common form on the plains around Denver and Col- 
 orado Springs, Porter. Canon City, Brandegee. Dr. Smith. 
 
 ACERTES DECUMBENS, Decaisne. DC. Prod., S, p. 552. Stems 1-L >0 
 long, numerous, decumbent, sometimes angular; leaves scattered and 
 subopposite, ovate-lanceolate, or more usually narrow-lanceolate, (<>' long, 
 y-V wide,) acute, margins scabrous ; umbels terminal, sub-globose ; 
 corolla-lobes ova.te, greenish-yellow; hoods purple, equaling the lobes 
 and exceeding til, disk ; pods smooth, 4' long, I' in diameter. S. Colo- 
 rado, Hoopes. 
 
 ACERATES YIRIDIFLORA, Ell. Wet Mountain Valley, Brandegee. 
 
 ACERATES AURICULATA, Engelm. Bot. Mex. Bound., p. 1GO. Stem 
 erect, 2-3 high, someAvhat glaucous ; leaves scattered, linear, filiform 
 or narrowly linear, slightly scabrous but not revolute on the margins, 
 4 / -6 / long, less than 1" wide ; umbels several, axillary, immy-tloweivr:, 
 on short peduncles; pedicels 6" long, pilose ; calyx villose on the out- 
 side ; lobes of the corolla reflexed, 2" long ; hoods obscurely 3-toothed 
 at the apex, involute 011 the margins^ very broadly biauriculate at base, 
 with large triangular wings ; pods lanceolate, long-beaked, 3'-4' long. 
 Near Denver, Dr. Smith. Caiion City, Brandegee. Pueblo, Eedjield. 
 
 JTASMIMEJEJ 
 
 MENODORA 2 SCABRA, Gr. Sill Jour., (2d. Series,) 14, p. 44. Stems erect, 
 
 1 JASMINES, BroAvn. Flowers perfect, regular; calyx persistent, dentate or lohed, 
 lobes 5-8; corolla hypogoiious, gamopetalous, 5-8 lobed, salver- form, lobes imbricate 
 in aestivation, two exterior contorted or valvate ; stamens 2, adnate to the tube an*. 
 included, anthers 2-eelled, cells dehiscing introrsely by a longitudinal chink ; ov;u' v 
 destitute of a hypogonous disk, 2-celled, 2-lobed at the apex ; ovules erect, 1 or 2 in 
 each cell or rarely 2-4 ; style simple, stigma 2-lobed ; fruit either two-berried or s.-p,-. 
 rable into two capsules; valves septiferous in the middle; seeds with little or n; 
 albumen ; embryo straight ; cotyledons two. 
 
 3 MENODORA, H. & B. Calyx 10-14 lobed, rarely 7-9 lobed ; lobes linear or setaceous. 
 longer than the tube of the corolla. Corolla siiort-fuimelforui or subrottite, more or 
 less bearded in the throat ; limb 5-parted, lobes obovate or oblong, scarcely inucroiiu- 
 late ; filaments filiform ; anthers awuless. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 115 
 
 mostly corymbose at the summit ; lower leaves oblong-lanceolate, upper 
 ones linear-lanceolate, very entire, very rarely 2-3 toothed and minutely 
 scabrous as well as the stems; lobes of the small corolla 3"-4" long, 
 broadly obovate, twice exceeding the 7-10 setaceous divisions of the 
 calyx ; fructiferous calyx not exceeding the carpels. Near Pueblo, Greene. 
 
 NYCTAGINACE^I. 
 
 MIRABILIS 1 OXYBAPHOIDES, Gr. (Quamocltdion oxybaphoides, Gr. SHI. 
 Jour., 2d. S., 15, p. 320.) Stems procumbent, diffuse, slender; leaves all 
 deeply cordate, on rather long petioles, lowestreuiform, upper ones acumi- 
 nate, often subangled; involucre 3-flowered, deeply 5-cleft, very viscid- 
 glandular as well as the peduncles in the loose panicle, lobes ovate, 
 rather acute, a little shorter than the campamilate perigonium; sta- 
 mens 3 ; fruit subglobose-obovoid, glabrous, destitute of ribs or angles, 
 blackish. Canon City, Brandegee. 
 
 MIRABILIS MULTIFLORA, Gr. (Oxybaplius multiflorus, Ton 1 , in Ann. JV. 
 T. Lye., p. 237; Quamoclidion mutiiflorum, Torr. Sill. Jour. I. c., 321.) 
 Pulverulent and minutely pubescent; stems subquadrangular, erect, 
 widely branched, with enlarged joints; leaves opposite, broadly cordate, 
 acute or acuminate ; petioles 4/'-6" long; flowers axillary and terminal; 
 involucre campannlate, 1' long, pedunculate, segments ovate, acute ; 
 flowers 4-7 ; perianth funnel-form, 1 J"-2" long, persistent, 5-lobed, lobes 
 acuminate, purple; stamens 5-0, as long as the perianth; anthers large, 
 yellow ; fruit smooth. Canon City, Brandegee. 
 
 OXYBAPHUS NYCTAGINEUS, Sweet. HaH & Harbour, 483. Golden 
 City, Dr. Smith. Denver, Porter. Canon City, Brandegee. 
 
 Var. CEEVANTESII, Gr. (0. Cervantesii, Lag.) Bot.Mex. Bound. Surv., 
 p. 174. Branches and involucres viscid-pubescent or villous; leaves much 
 thicker, obtuse, and cordate or sub-cordate at base. Canon City, Bran- 
 degee. 
 
 Yar. OBLOXGIFOLIUS, Gr. Bot. I. c., p. 174. Leaves ovate-lanceolate or 
 oblong, thick, not cordate at base, about 2' long; panicles terminal, laxly 
 many-flowered, expanded ; stems 2-4 high. Cherry Creek, near Den- 
 ver, Dr. Smith. Canon City, Brandegee. 
 
 OXYBAPHUS HIRSUTUS, Sweet. DC. Prod., 13, 2, p. 433. Very densely 
 pilose with long, spreading, articulated hairs; leaves sessile, ovate, 
 angola te-dentate or repand; involucre pubescent-tomentose. Chiaim 
 Canon, Porter. Wet Mountain Valley, Brandegee. 
 
 OXYBAPHUS AXG-USTIFOLIUS, Sweet. Stems glabrous, ascending, 
 slender, l-6 high; leaves glabrous, linear, usually elongated, 2 / -4 / 
 long, thick, glaucous; flo wers loosely panic-led; peduncles and involucre 
 pubescent; involucre with 5 triangular, ovate, acuminate lobes, 3-5- 
 flowered, becoming 5" long in fruit ; perianth short, sub-campanulate or 
 rotate-fuimel-form, scarcely exceeding the involucre, white or pink, the 
 limb 1J" long; stamens exserted ; fruit hoary-pubescent, 2' 7 long. Hall 
 & Harbour, 482. Denver and Colorado Springs, Porter. Canon City. 
 Brandegee. Dr. Smith ; B. H. Smith. 
 
 1 MIRABILIS, L. Involucre herbaceous, scarcely changed in fruit, calyx-like, of 
 united leaves, 5-lobed, 1-2-rlo \vered. Calyx tubular, or more or less broadly funnel- 
 form. Stamens almost always 5, united within the persistent base of the calyx. 
 Stigma capitate, granulated. Fruit indurated, smooth, ovoid, not angled and scarcely 
 or not at all ribbed. Seed straight, with an incurved embryo, inferior radicle, andfolia- 
 ceous cotyledons. Herbs, with jointed stems, opposite leaves, and flowers solitary in 
 the axils, or in crowded terminal clusters. 
 
116 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ALLIONA 1 INCARNATA, L. DC. Prod. 13, 2d pt,, p. 434. Stem herbace- 
 ous, prostrate, elongated, whitish, mostly woolly ; leaves petioled, unequal 
 in the same pair, obtuse at each end or obliquely subcordate at base, mar- 
 gin sinuate, whitish-villose ; peduncles solitary; lobes of the involucre 
 lanceolate, acute, retiexed after flowering. Cation City, 1873, Greene. 
 
 ABRONIA 2 FRAGRANS, Xutt. Viscid-pubescent ; stems numerous from 
 a perennial root, ascending -1J high ; leaves oblong or ovate, trun- 
 cate or more or less cuneate at base ; obtuse or acutish ; peduncles, mostly 
 solitary, elongated; bracts of the involucre large, broadly ovate, white 
 and scarious, obtuse or acute, 4 // -9 // long ; stamens unequal; stigma 
 clavate ; fruit 3"-6" long, coriaceous, narrowly 1-2 winged or wingless, 
 not crested ; seed 1J" long. Hall & Harbour, 572. Plains near Denver, 
 Dr.. Smith; B. H. Smith. Near Colorado Springs, Porter. Monument 
 Park, Coulter. 
 
 ABRONIA CYCLOPTERA, Gr. Sill Jour., (N. S.,) 15, p. 319. Glandular- 
 pubescent; stems prostrate or ascending, 6'-18' long; leaves oblong, 
 ovate or ovate-lanceolate, cuneate at base, obtuse, l'-2' long; peduncles 
 short ; involucre of 5 ovate, acuminate bracts, 2 // -5 // long, 8-20 flowered ; 
 flowers bright rose-color, 6"-12" long, tube pubescent; stamens 3-5; 
 fruit 7"-12" long, 4 // -10 // wide, including the 2-4 (usually 3) large semi- 
 orbicular, membranous, strongly reticulated, pinkish-purple wings; seed 
 2"-4" long. Hall & Harbour, 573. Upper Arkansas, Porter. Grape 
 Creek, Fremont County, Coulter. 
 
 TELOXYS 3 CORNUTA, Torr. Bot. Whippl, P. E. -K., p. 129. Glabrous, 
 12 / -15 / high, very much branched ; leaves repand-deutate and pinuatifid ; 
 segments of the calyx acute, short beaked 011 the back ; calyx beset with 
 minute, elevated glands; floAvers minute, terminal and sessile in the 
 forks of the slender, dichotomous branchlets; the terminal ones soon 
 fall away, leaving slender, persistent, awnlike pedicels ; seed orbicular, 
 thick, rounded on the margin and closely covered with the .utricle which 
 strongly adheres to its surface. Mountains west of Denver, Dr. Smith; 
 B. H. Smith. Pueblo, Greene. 
 
 CYCLOLOMA PLATYPHYLLTJM, Moq. Near Denver and Colorado 
 Springs, Porter. 
 
 CHENOPODIUM ALBUM, L. Exceedingly variable.. Caiion City, Bran- 
 degee. Denver and Colorado Springs, Porter. Mount Elbert near Twin 
 Lakes, at 10,000 feet altitude, Coulter. 
 
 Linn. Involucre gam opliy lions, 3-cleft, 3-flowered. Perigonium very 
 small, limb 4-lobed. Stamens 4, freely included. Style simple ; stigma capitate. Fruit 
 covered with tlie indurated base of the perigouium, spiuulose on the back. Embryo 
 plicated. De CandoUe. 
 
 2 ABRONIA, Jnss. Involucre perfect, of 5-15 distinct leaflets, the head many flowered. 
 Calyx salver-form, with obcordate lobes. Stamens 5, included, adnate to the tube. 
 Style included ; stigma capitate or linear-clavate. Perfect fruit 5-winged. Seed cy- 
 lindrical, smooth. Embryo by abortion monocotyledouous, infolding the central mealy 
 albumen. Low herbs, with thick opposite petioled unequal leaves ; peduncles axillary 
 and terminal, and flowers in solitary involucrate heads. 
 
 3 TELOXYS, Moq. Flowers perfect, bractless. Calyx 5-parted, segments subconcave, 
 at length subcarinate, never appendiculate. Stamens 5, subperigynons. Filaments 
 compressed, thickish, subdilated below. Anthers ovate-globose. Staminodia none. 
 Nectary small, annular, depressed, somewhat fleshy. Ovary superior, depressed. Style 
 terete, thickish. Utricle depressed. Calyx angulate, involute, not entirely closed. 
 Pericarp distinct, membraiiaceoiis. Seed horizontal, lenticular, strongly depressed. 
 Testa crustaceous. DC. Prodr., 13, 2d pt. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 117 
 
 CHEXOPODIUM FREIMONTII, Watson. King's Rep., vol. 5, p. 287. 
 More or less farinose, G'-3 high, diffusely branched ; leaves oblong, 
 ovate or broadly triangular, mostly hastate, abruptly attenuate into a 
 slender petiole ; panicle loose and spreading, with short braetlets; 
 branchlets very slender; calyx-lobes carinate -cucullate; seed horizontal, 
 smooth and shining. Colorado Springs, Porter. Canon City, Brandegee. 
 
 CHENOPODIU3I HYBRIDUM, L. Hall & Harbour, 485. "Low mount- 
 ains 77 Ute Pass, Porter. Near Denver, Dr. Smith. Twin Lakes, Coulter. 
 
 CHENOPODIUM GLAUCUM, L. Near Denver, Dr. Smith. 
 
 BLITUZNI CAPITATOI. L. Near Denver, Dr. Smith; B. H. Smith. Col- 
 orado Springs, Porter. Twin Lakes, Mount La Plata, and Oro City, 
 Coulter. 
 
 MoxoLEPis 1 CHEXOPODioiDES,Moq. DC.Prod., 13, 2d pt., p. 85. (Blititm 
 Xuttallianum, E. & S.) Glabrous, or somewhat glaucous and farinose*, 
 steins ascending or decumbent, 3 / -12 / high, branched; leaves $'-2' long, 
 attenuate into the petiole and hastate at base, the lobes acute and en- 
 tire or the middle one laciniate- toothed; flowers in rather dense clusters 
 in the axils, often reddish, the sepals lance-elliptic, obtuse, sometimes 
 abortive; seed rather acutely margined, minutely tuberculate and not 
 shining, J" in diameter. Hall & Harbour, 486. Colorado Springs, Porter. 
 Near Denver and Twin Lakes, Coulter. 
 
 ATRIPLEX PATULA, L. Can >n City, Brandegee. Pueblo, 1873, Greene. 
 
 CORISPERMUM HYSSOPIFOLIUM, L. Canon City, Brandegee. Near 
 Denver, Dr. Smith. Colorado Springs, Porter. 
 
 OBIONE 2 CAXESCENS,Moq. DC.Pro<?.,13,2dpt, p. 112. Shrubby, l-5 
 high, hoary-caneseent and pulverulent, unarmed, branches usually erect 
 and virgate ; leaves sessile, oblong or linear-oblong, narrowed at base, 
 obtuse or acutish, occasionally emarginate, entire, l'-2J' long and 2 // -4 // 
 wide, (sometimes vsmaller and ovate or obovate;) flowers dioecious, the 
 staminate in dense clusters at the extremities of the brauchleis, the pis- 
 tillate clusters less crowded, axillary; fruit 2 // -3 // long, hoary-pubescent, 
 sessile or short-pedicelled, wingless or broadly winged by the more or 
 less dilated* margins' of the variously toothed bracts. Hall & Harbour, 
 308. Caiion City, Brandegee. Denver and Colorado Springs, Porter. 
 
 OBIONE AKGEXTEA, Moq. DC. Prod., 13, 2d pt., p. 115. Annual and 
 herbaceous, G'-lo' high, branching from the base, the branches ascending, 
 densely mealy-canescent, especially when young; leaves rather thick 
 and fleshy, i'-2' long, usually hastate or deltoid, sometimes rhomboidal 
 or ovoid, attenuate into the short petiole, obtuse or acutish, entire or 
 rarely sinuate-toothed; flowers monoecious, in sessile axillary clusters 
 upon the leafy branches; staminate clusters small; bracts somewhat 
 orbicular, united at base, dilated and herbaceous above in fruit, becom- 
 ing often 2"-3" in diameter, the margin deeply and acutely toothed and 
 undulate, the sides strongly reticulated, and frequently more or less 
 crested. Hall d' Harbour, 484. Canon City, Brandegee. Median. 
 
 1 MOXOLEPIS, Schrad. Flowers polygamous, braetless; calyx of a single scale-like 
 sepal, persistent, without appendages. Stamen 1, inserted on the receptacle. Disk 
 and staminodia none. Styles 2, filiform, somewhat united at base, stigmatic on the 
 inner surface. Utricle strongly compressed, naked, rather thick, subadherent to the 
 vertical flattened seed. Testa crnstaceous, fragile. Embryo annular, surrounding the 
 copious farinaceous albumen; radicle inferior. Annual herbs, with alternate petioled 
 leaves and clustered axillary flowers. Moquin in DC. Prod. 
 
 2 OBIOXE, Giertn. Pistillate flowers all without calyx and 2-bracted, the bracts 
 more or less completely united and becoming hardened or corky; radicle superior; 
 otherwise as in Atriplex. Monoecious or dioecious herbs or undershrubs, with mostly 
 alternate entire or sinuate-dentate leaves. Moquin in DC. Prod. 
 
118 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 OBIONE SUCKLE Y AN A, Torr. Pacif. R. R. Rep., 12, 2d pt., p. 47, pi. 4. 
 Annual; stein branching, prostrate; leaves suborbicular, on long petioles, 
 acutely repand-dentate, pale-green on both sides, nearly glabrous; 
 glomerules axillary; monoecious bracts of the sessile fruit deltoid, united 
 to the summit, the margin narrowly winged, crenate-denticulate ; male 
 flowers tetramerous. Meelian; in a dry irrigating ditch three miles west 
 of Denver. 
 
 EUROTIA l LANATA, Moq. DC. Prod., 13, 2d pt., p. 121. White-tomen- 
 tose, 6'-18' high, woody below, the subherbaceous branches virgate and 
 often simple ; leaves numerous, alternate and fascicled, linear-lanceolate, 
 "-\.&" long, l"-2" wide, revolute upon the margins; flowers frequently 
 dioBcious ; fruiting involucre 2"-3" long, penicillate with four dense tufts 
 of long, white hairs, (becoming brown in the herbarium, as also the 
 tomentum,) seed minute, J" long. Known both as " White Sage" and 
 u Winter Fat." Near Denver and Colorado Springs, Porter. Canon City, 
 Brandegee. 
 
 SALICORNIA HERBACEA, L. In dry saline marshes in South Park, 
 Porter. 
 
 MARITIMA, Duuiout. Hall & Harbour, 489 ; Median. 
 DEPRESSA, Lecleb. (Salsola, Pursh, FL N. Am., 107. Chenopo- 
 dina,Moq., DC. Prod., 13, 2d pt., p. 164.) Annual, herbaceous, prostrate, 
 very much branched, glabrous, often reddish; stems (3" -6" long) and 
 branches usually more or less flexuous ; leaves mostly flatter and 
 broader than i a the last; flowers and seed similar. Hall & Harbour, 
 488. " South Park and on the plains. " South Park, near the salt- 
 works, Porter. 
 
 SARCOBATUS 2 VERMICULATUS, Torr. (Fremontia vermicularis, Torr. 
 Frem.Rep., pp. 95 and 317, t. 3.) Erect, 3-G high, diffusely branched, more 
 or less spinose and the rigid divaricate or spreading branchlets spines- 
 cent at the extremities ; leaves G^-18" long, i"-2" wide, frequently much 
 smaller and fascicled on the branchlets, scurfy-pubarulent when young, 
 becoming glabrous ; staminate aments 3"-9" long, cylindrical or oblong, 
 nearly 2" in diameter ; anthers soon deciduous ; winged calyx of the 
 mature fruit 3"-G" broad; seed V in diameter, with a thin membranous 
 transparent testa. Near Canon City, Redfield. 
 
 1 EUROTIA, Adans. Flowers monoecious or sometimes dioecious ; the staminate 
 flowers glomerate-spicate at the extremities of the leafy branches; the pistillate below 
 them; axillary, sessile, solitary or clustered, 2-bracted ; bracts at first free, becoming 
 connate, enlarging and including the flower in a calyx-like tubular involucre, the free 
 summits elongated and narrowed. Calyx of the staminate flowers 4-parted, the lobes 
 equal, membranous. Stamens 4, inserted on a naked receptacle. Fertile flowers with- 
 out calyx, staminodia or nectariferous disk. Ovary ovoid. Styles 2, capillary, united 
 only at the base, exserted, hirsute. Fruit ntricular, membranous, villous, included in 
 the exceedingly hirsute involucre. Seed vertical, compressed, obovate, with a simple 
 membranous testa. Embryo nearly annular, surrounding the small mealy albumen, 
 green; radicle inferior. Low stellately-pubescent uudershrubs, with alternate, short 
 petioled entire leaves. Ledebour in Flor. Ross. 
 
 2 SARCOBATUS, Nees. Flowers unisexual, monoecious and dioecious. Staminate flowers 
 in terminal aments. Scales eccentrically peltate, stipate, angular, cuspidate. Stamens 
 2-4 under each scale, naked, sessile ; anthers oblong. Pistillate flowers solitary, axil- 
 lary. Calyx ovate, compressed, urceolate, contracted at the apex about the style and 
 somewhat bifid, enlarged and thickened in fruit and developing below the middle a 
 broad transverse undulate veined wing. Ovary sessile, very thin and membranous, 
 flattened, orbicular, mostly oblique, terminating laterally and abruptly in the slender 
 included persistent style; stigmas exserted, thick, divaricate, often unequal ; ovule on 
 a short funiculus, campylotropous. Seeds vertical, with a double integument ; embryo 
 flat-spiral, green ; radicle inferior ; albumen at the base very small or none. A spines- 
 cent shrub of alkaline soils, with alternate linear fleshy leaves. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 119 
 
 AMARANTACE.E. 
 
 . 
 
 AMAR ANTUS RETROFLEXUS, L. CaQon City, Brandegee. Plains aroimd 
 Denver, Coulter. Introduced. 
 
 AMARANTHS ALBUS, L. Plains around Denver, Dr. Smith. Canon 
 City, Brandegee. 
 
 MONTELTA TAMARISCINA, Gr. Around Denver, Dr. Smith; B. H. 
 Smith. Canon City, Brandegee. 
 
 FRCELICHIA FLORID AN A, Moq. Around Denver, Dr. Smith. " Sand 
 bills on the plains," Hall & Harbour. 487. 
 
 PARONYCHIEJE. 
 
 PARONYCHIA PULVINATA, Gr. Proc. Acad. Phil, March, 1863, p. 58. 
 Matted-ca?spitose from a woody root, forming dense cushion-like tufts, 
 nearly glabrous, occasionally sending out short nearly naked pubescent 
 stems; stipules silvery, broadly ovate, entire, pointless, the uppermost 
 somewhat acute but blunt, 2" 'long; leaves thick, oblong, obtuse, cilio- 
 late-scabrous upon the margin and somewhat minutely glandular-pubes- 
 cent, 2J"-3" long and V wide, bright green and nerveless, equaling the 
 stipules and with them densely covering the short stems; flowers im- 
 mersed among the leaves, solitary, terminal, sessile ; sepals oval, broadly 
 scarious, awned a little below the somewhat arched apex ; stamiiiodia 
 5, similar to the fertile filaments ; ovary glabrous, tapering into the 
 rather short style. Alpine. Hall it Harbour, 66; Parry, 297. Mount 
 Lincoln, at 13,000 feet altitude, Coulter. 
 
 PARONYCHIA SESSILIFLORA, Kutt. Eoot woody, very densely csespi- 
 tose, much branched and crowded : branches very dense, 2' high ; leaves 
 imbricated, linear-subulate, lowest erect, obtuse, the upper longer, re- 
 curved-spreadiug, acute or mucrouate, rather longer than the 2-cleft 
 stipules; flowers terminal, solitary, sessile; sepals arched at the apex 
 within, with divergent setaceous awns rather shorter, oblong-linear, ob- 
 scurely 3-uerved ; sterile seta? as long as the filaments ; style as long as 
 the se'pals, 2-cleft at the apex. South Park, Canby. Wet Mountain 
 Valley, Brandegee. 
 
 PARONYCHIA JAMESII, T. & G. Very minutely scabrous-pubescent, 
 ca^spitose, much branched from the base, stems 4M5' high ; leaves linear- 
 subulate, obtuse, ' long, about the length of the iuternodes, uppermost 
 mucronate ; stipufes shorter than the leaves, ovate-lanceolate, acuminate 
 or setose; cymes dichotomous, few-flowered, crowded, with a central, sub- 
 sessile flower in each division; sepals minutely hairy at the base, linear- 
 oblong, obscurely 3-ribbed. with very short cusps, arched at the summit 
 within ; sterile seta? as long as the filaments ; style 2-cleft one-third of 
 its length. Hall & Harbour, 67. South Park, Canby. Abundant at the 
 base of the foot-hills near Colorado Springs, Porter. 
 
 POLYGON lACEJE. 
 
 ERiOGONOi 1 ALATUM, Torr. Sitc/reares' Rep., p. 168, t. 8. Perennial; 
 root stout and blackish ; stem erect, i-3 high, arising from a short, thick 
 
 1 ERIOGONUM, Miehx. Involucre many-rlowered. (seldom few, or very rarely 1-flow- 
 ered,) campanulate. top-shaped, or cyliiidric. usually 5-8-toothed or lobed, pointless. 
 Flowers jointed upon their pedicels, which are more or less exserted from the involu- 
 cre in flower ; bractlets usually very delicate or very narrow. Calyx 6-parted or 
 deeply 6-cleft. Stamens 9. Achenmm triangular, or in a few species 3-winged. 
 North American herbs or undershrnbs. mostly west of the Mississippi. 
 
ERIOG-ONTDI FLAVUM, Nul 
 cent with a silky- woolly or 
 high, from a thick, many-pa 
 spatulate, becoming more or| 
 on the caudex ; . involucral 
 the same number; perigonil 
 the outside, funnel-form atl 
 ovary hirsute at the apex. 
 Around Denver and Colorac 
 Coulter. Canon City, Brant 
 
 ERIOGONUM HERACLEOID! 
 der, lJ-2 high, woolly, t< 
 curnbent, subcsespitose, fascil 
 scape-like peduncles souieti 
 leaves in the middle, with a 
 part involucrate-bracted ; leal 
 woolly beneath or on both sij 
 ing and soon reflexed, with] 
 yellow, very glabrous calyx \ 
 filaments villous below ; ova 
 top, especially upon the angll 
 
 ERIOGONUM UMBELLATUIJ 
 foot high, woolly, tornent< 
 
 branches decumbent or cm 
 
 fasciculate-leafy at top ; leaves obovate-spatulate or oval, narrowing to 
 a petiole, white-woolly beneath ; peduncles scape like, leafless excepting 
 the involucre of bract-like leaves subtending the simple or rarely sub- 
 compound umbel; involucre deeply 6-8 cleft, many-flowered ; calyx very 
 glabrous, yellow or sometimes white, the segments 2-3 times longer than 
 the slender stipe ; filaments and ovary as in the last. Hall & Harbour, 
 504; Parry. Near Denver, Dr. Smith. Canon City, Brandegee. Plains 
 and foot-hills near Colorado Springs, Porter. Sierra Madre Range and 
 plains of the Platte, Coulter. 
 
 Var. MONOCEPHALUM, T. & G. Dwarf, depressed, caespitose ; leaves 
 glabrate above or on both sides, the blade J'-J' long ; scape %'-3' high, 
 slender, bearing 2-4 capitate involucres with usually 1-3 bracts, or a 
 single larger one, usually naked; flowers smaller. Twin Lakes, Coulter. 
 
 ERIOGONFM (LACHNOGYNA) ACAFLE, "Suit. T. & $., /. c., p. 163. 
 Perennial, matted-ca?spitose, white- tomentose ; leaves sessile, densely 
 
SYNOPSIS OF THE FLORA OF COLORADO. 121 
 
 crowded upon the closely-branched caudex, oblong or sub-linear, mar- 
 gins re volute ; heads of 1-5 nearly sessile short 3-5- toothed involucres, 
 sessile among the uppermost leaves, sometimes shortly exsert-peduneu- 
 late in fruit ; flower with a broad sessile base, the calyx hardly 2" long, 
 tomeutose, 6-parted, with equal oblong segments ; filaments pilose only 
 at base ; ovary very tomentose with long tangled wool ; leaves 2"-3" 
 long, spreading from the imbricated sheathing base. Discovered by 
 Xuttall in the Rocky Mountains of Colorado; not seen by us. 
 
 ERIOGONUM (LACHNOGYXA) LACHNOGYNUM, Torr. T. d; (7., 1. c., p. 
 163. Branches of the caudex very short and crowded; scape a span to 
 1 high, slender; leaves lanceolate or lance-oblong, 1' long, acute, 
 petioled, more or less revolutely-margined, silky above, tomeutose be- 
 neath ; calyx silky-woolly, yellow within. Southern Colorado and 
 Xew Mexico. Blufts of the Arkansas at Pueblo, Greene, 1873. 
 
 ERIOGONUM (HETEROSEPALA) OVALIFOLIUM, Eutt. T. & ., 1. ., p. 
 
 104. Perennial, ciespitose, acaulescent, hoary- woolly; leaves oval or 
 somewhat rounded, petioled, crowded upon the numerous short branches 
 of the caudex; scape 2'-8' high, simple, leafless, with a single head (very 
 rarely 2) of few (3-8) closely sessile 5-S-toothed involucres; bracts very 
 small or wanting ; calyx with the base not produced, very glabrous, 
 6-parted, more or less yellow or rose-colored, wholly petaloid, becoming 
 thin and scarious after flowering ; segments very unequal, the outer very 
 broadly oval, cordate at base with usually a rather deep sinus, the lobes 
 reaching to the joint or beyond it, the inm-r narrow, spatulate, ernar- 
 ginate, counivent-erect and involute, each bearing 3 stamens at the claw- 
 like base; ovary glabrous. Rocky Mountain's of Colorado to Utah and 
 Nevada. 
 
 ERIOGOXUX MULTICEPS, Ker. T. & G., I c., p. 166. Clothed with very 
 white appressed wool ; branches of the caudex short, assurgent, leafy ; 
 leaves oblong-spatulate or oblanceolate, gradually attenuated into the 
 petiole ; scape 3'-5' high ; head bracteate ; bracts unequal, 1 or 2 of them 
 often surpassing the involucres ; flowers small ; involucres 5-10, tubu- 
 lose, 5-toothed ; calyx white or r brownish yellow, or tinged with red, 
 somewhat woolly ; segments obovate-cuueate, retuse ; filaments nearly 
 smooth. Southern Colorado, Brandegee. 
 
 ERIOGOXUX PAUCIFLORUM, Piirsli. T. & G., I c., p. 166. Becoming 
 smooth, with the aspect of Armeria ; branches of the caudex very short, 
 crowded; leaves linear or subspatulate, re volute- margined, attenuated 
 into a petiole, at length nearly smooth; scape 4'-6' high, bearing a single 
 head; involucres 5-10, turbinate-campanulate, 5-toothed; calyx white, 
 glabrous, segments oval; filaments pubescent below. South Park, Canty; 
 Hoopes. 
 
 ERIOGONUM MICROTHECUM, Xutt. T. if- ., I c., p. 170. Shrubby, rather 
 low, (rarely 1 high,) very much branched from the base ; tomentuin 
 floccose, sometimes rather thin; branches erect or assurgent, but the 
 cyme either crowded or effuse; leaves narrowly oblong and linear; flow- 
 ers white or rose-colored, rarely dull yellow, seldom over 1" in length, 
 usually rather thick at base after flowering, glabrous within, the seg- 
 ments obovate, inner ones at least emargiuate or retuse ; ovary often 
 scabrous above on the angles. 
 
 Yar. FENDLERIANIDI, Beuth. Leaves broad, F-1J' long, "-Z" wide; 
 involucres 2" long, in an ample loose cyme. Canon City, Brandegee. 
 Pueblo, Greene. 
 
 Yar. BFFUSUM, T. & G., (E. effusum, :N T utt, PL Garni}., 1. c., p. 172.) 
 
122 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 More woolly ; leaves oblong or linear-oblong, margins more or less rev- 
 olute; cyme many-flowered, decompound, effuse-paniculate ; rays usually 
 longer 5 flowers white. Common on the plains and foot-hills. Denver, 
 Dr. Smith. Colorado Springs, Porter. Canon City, Brandegse. Canby. 
 Plains of the Platte, Coulter. 
 
 ERIOGONUM BREVICAULE, Nutt. T. & G.j I c., p. 172. Caespitose ; 
 shrubby, the woody leafy- branches very short or depressed, bearing a 
 naked elongated herbaceous scape-like peduncle; leaves l'-2i' long and 
 l"-5" broad, linear, oblong-linear or narrowly spatulate-oblauceolate, at- 
 tenuate into a slender petiole, white-woolly on both sides or becoming 
 glabrous above, the margins at length mostly revolute; scapes rigid, 
 S'-IO' high, the cyme repeatedly umbeled or trichofcomous, calyculately 
 bracted at the nodes; peduncles and the 5-toothed oblong or cyathiform- 
 campanulate involucres (lJ"-2" long) glabrous or some glabrate; calyx 
 glabrous within, white or rose-color or sometimes bright yellow, the seg- 
 ments obovate-oblong and nearly equal. "From the head-waters of the 
 Platte to New Mexico." 
 
 ERIOGONUM ANNUUM, Nutt. T. & G., 1. c., p. 173. Covered with a 
 close white wool ; stems tall, l-3 high, strict, leafy below ; leaves ob- 
 long, attenuated at the base, numerous, short-petioled ; cymes decom- 
 pound; flowers numerous; involucres snowy-woolly, glabrous within, 
 teeth 5, short ; calyx white, furnished at base with long, delicate, arach- 
 noid wool, segments unequal, outer ones much larger, broadly obovate, 
 inner ones oblong; bracteoles slightly plumose. Plains around Denver, 
 Dr. Smith. Around Colorado Springs, Porter. Canby. Hall (fe Harbour, 
 501. 
 
 ERIOGONUM CERNUUM, Nutt. T. & G., 1. c., p. 182. Annual, slender, 
 4'-15' high ; leaves radical or sometimes cauline, round or obovate, some- 
 what loiig-petioled, floccose-woolly ; panicle glabrous, widely spreading, 
 decompound, usually very -many -flowered ; pedicels soon deflexed 
 smooth, 2-3 times longer than the campanulate, glabrous, many-flowered 
 involucre; bractlets setaceous, short, subnaked; calyx white or pinkish, 
 glabrous G-cleft, turbinate and acute at base, the outer segments square, 
 emarginate or retuse, scarcely exceeding the oblong half-as-wide inner 
 ones. Involucres not over V long ; flowers scarcely as long and often 
 much shorter, and well marked by the top-shaped base. Hall & Har- 
 bour, 503 ; Canby. Upper Arkansas, Porter. Canon City, Brandegee. 
 
 ERIOGONUM GORDONI, Benth. T. & G., 1. c., p. 185. Glabrous 
 throughout; leaves subcoriaceous, round; peduncles several- from the 
 root, short, repeatedly divided above into an ample, loose dichotomous 
 panicle, branches slender, pedicels subcapillary, 9"- 14" long, erect ; 
 flowers 2-3, white, very small ; involucre turbinate-campanulate, 5- 
 toothed ; outer segments of the very smooth calyx ovate, a little longer 
 than the oblong inner ones ; bractlets minutely glandulose. Canon 
 City, Brandegee. Plains about Pueblo, Greene. 
 
 ERIOGONUM TENELLUM, Torr. T. & G., 1. c., p. 180. Csespitose from 
 a much branched woody caudex ; leaves crowded, ovate or rounded, 
 white-tomentose ; scape and spreading panicle smooth; bracts very 
 small; pedicels elongated, erect; involucres l%"-2^" long, rather many 
 flowered; flowers white, the segments retuse, unequal, the outer broad 
 obovate or rounded ; bractlets villous. "Colorado to New Mexico. 7 ' 
 
 OXYRIA DIGYNA, Campd. Hall & Harbour, 4D4; Parry. Giay ? s 
 Peak, Dr. Smith. Mount Lincoln, at lo.Cl'O feet altitude, and -Horse Shoe 
 Mountain, at 11,000 feet, Coulter. 
 
 RUMEX VENOSUS. Pursh. DO. Prodr. 14, p. 43. Stem branched, 1 
 
SYNOPSIS OF THE FLORA OF COLORADO. 123 
 
 high ; leaves thick, flat, glabrous, petioled, the lowest ovate-subcordate 
 at base, the rest ovate-lanceolate or oblong, acute, attenuate at base ; pani- 
 cle leafy only at base; racemes axillary and terminal, solitary, simple, 
 sessile, the fascicles 3-8-flowered ; flowers perfect, on capillary pedicels 
 jointed at the base and equaling the valves ; valves equal, orbicular, 
 deeply cordate, entire, closely reticulate- veined, destitute of a callus, be- 
 coming greatly dilated. Leaves often 4' long and lJ'-2' wide, on rather 
 short petioles; valves bright rose-color at maturity, 9"-12" in diameter; 
 outer sepals finally deflexed, about equaling the sinus of the valves. 
 Hall & Harbour, 495. 
 
 RUMEX LONGIFOLIUS, DC. Prodr. 14, p. 44. Stout, 3-5 high ; leaves 
 elongated, acute, undulate, the lowest oblong, subcordate, or obtuse at 
 base,6'-15' long^M/ wide, long-petioled, the upper lanceolate, attenuate 
 at each end, and the uppermost linear ; petioles flat above, with a thin 
 linear margin; panicle simple, leafless above, the racemes sessile; valves 
 about 2J" in diameter, broad-ovate, slightly cordate, obtuse, finely reti- 
 culated, subentire, without callosities. Hall & Harbour, 499. Very com- 
 mon on Bear Creek and Horse Shoe Mountain, Coulter. 
 
 RUMEX SALICIFOLIUS, Wemm.Hall & Harbour, 490 and 498. Canon 
 City, Brandegee. Denver, Dr. Smith. Colorado Springs, Porter. Oro 
 City and plains of the Platte, Coulter. 
 
 RUMEX MARITIMUS, L. "Subalpine," Hall & Harbour, 497. Head of 
 Clear Creek, at 10,000 feet altitude, Coulter. Pueblo, Greene. 
 
 RUMEX ACETOSELLA, L. Greeley, Greene. 
 
 POLYGONUM ERECTUM, L. (P. aviculare, L., var. erect urn, Roth.) Wat- 
 son, Rev. ofPolyg., Am. Nat, 1, p. 664. Erect or ascending, glabrous, l -2 
 high or more, pale or yellowish; leaves oblong or oval, 6"-30" long, 
 usually obtuse; flowers mostly l|" long, on more or less exserted pedi- 
 cels; sepals rarely 6; stamens 5-6; acheniuin broadly ovate to lanceo- 
 late, dull and granular or nearly smooth. Around Denver, Dr. Smith. 
 Canon City, Brandegee. ^"orth Park, Hay den. Western's Pass, Coulter. 
 Colorado Springs, Porter. 
 
 POLYGONUM RAMOSissniUM, MX. Colorado Springs, Porter. On the 
 Platte near Denver, Coulter. 
 
 PoLYGONini TENUE, MX. Hall & Harbour, 492 ; Meelian. Colorado 
 Springs, Porter. Sierra Madre Range, Coulter. 
 
 POLYGONUM IMBRICATUM, Nutt. Wateon, 1. c., p. 665. Low, slender, 
 often diffusely branched, l'-S' high; leaves narrowly linear; spikes 
 dense; bracts loosely imbricated, linear or oblong, 2"-4" long, with some- 
 times a narrow, scarious margin, acute; stamens 3 or 5; style one-third 
 as long as the ovary. Alpine and subalpine. Hall c- Harbour, 493; 
 "Blue River, on the western slope of the Rocky Mountains.' 7 
 
 POLYGONUM AMPHIBIUM, L., var. TERRESTRE, Willd. Near Denver, 
 Dr. Smith. Near Colorado Springs, Porter. 
 
 POLYGONUM PENNSYLVANICUM, L. Greeley, Greene.. 
 
 POLYGONUM INCARNATUM, Ell. Cafioii City, Brandegee. Plains of 
 the Platte, Coulter. 
 
 POLYGONUM VIVIPARUM, L. Hall & Harbour. 491. Xear Denver, Dr. 
 Smith. Clear Creek Canon, Coulter. 
 
 POLYGONUM BISTORTA, L. DC. Prod 14, p. 125, Rhizoina thick and 
 twisted; stems annual, very simple; sheaths long and striately nerved; 
 leaves glabrous or puberulent beneath, the lowest cordate obtuse, with 
 a long-winged petiole, the upper subsessile, the highest linear or abor- 
 
124 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 tive; spike dense, oblong, obtuse ; pedicels exceeding the flowers; sta- 
 mens exserted. 
 
 Yar. OBLONGIFOLIUM, Meisn. Stem simple, 6'-2 high ; leaves glab- 
 rous, the lowest oblong, the blade 3'-S' long, l'-2' broad, scarcely decur- 
 rent by an abruptly attenuate base into a very long petiole ; spike 
 oblong, '-2' long. Hall & Harbour, 490. Gray's Peak, Dr. Smith. San- 
 gre de Cristo Pass, Brandegee. Mount Lincoln, at 13,000 feet altitude, 
 Coulter. Parry ; B. H. Smith. Twin Lakes, Porter. 
 
 POLYGONUM DUMETORUM, L. Caiion City, Brandegee. Foot-hills 
 near Denver, Coulter. 
 
 SHEPHERDIA CANADENSIS, L. Hall & Harbour, 506. Twin Lakes, 
 Coulter. 
 SHEPHERDIA ARGENTEA, Kutt. Green Horn Kiver, Greene, 1873. 
 
 SANTAI.ACEJE. 
 
 COMANDRA PALLIDA. DC. Prod. 14, p. 666. Steins from a woody 
 caudex. herbaceous, striate, erect, 6'-W' high, branched above ; leaves 
 alternate, bluish, somewhat punctate on the margin, lower elliptical- 
 oblong, mucronate-acute, 8"-12" long, 2 // -3 // wide, uppermost usually 
 linear-lanceolate, S"-!!)" long, about V wide ; bracts linear-lanceolate, 
 2". long; pedicels slender, V long; flower as in C. umbellata, but the 
 lobes more papillose-velvety, especially on the margin and within ; 
 calyx-lobes erect, spreading; fruit 3" in diameter with a subfleshy 
 epicarp. Hall & Harbour, 507 ; Meehan. Saint Train Canon, Coulter. 
 
 ARCEIJTHOBIUM 1 AMERICANUM, Nutt. Engelm, in Boston Jour. Nat. 
 Hist., 6, p. 214. Slender, fasciculately branched, greenish-yellow ; 
 flowers often verticillate; male flowers almost always terminal on short 
 branchlets, crowded, rarely axillary; berry 1" long. On Pinus contorta, 
 from Colorado northward and westward ; flowers in August and Sep- 
 tember, maturing its fruit in 12-13 months. Delicately fasciculate, 
 much branched plants, V or, 2'-3 > high. Meehan. Mount of the Holy 
 Cross, Coulter. 
 
 ARCEUTHOBIUM ROBUSTUM, Engelm. in Revision Arceuth. ined. Stout> 
 spiked-branched, olive or brownish-green; flowers opposite, spiked; 
 berry 2J" long. On Pinus ponderosa, from Colorado southward and 
 westward ; flowers in June, maturing in 15-16 months. Stouter and 
 darker colored than the last, S'-l' high ; flowers and fruit much larger. 
 Hall & Harbour, 574. Meehan; Woolson. 
 
 EUPHORBIACE.E. 
 
 EUPHORBIA LATA, Engelm. DC. Prod. ,15, 2dpt., p. 18. Canescentwith 
 appressed pubescence; stems from a woody rootstock, spreading, short, 
 rigid, dichotomously very much branched, 3'-&' high ; lower iuteruodes 
 longer than the leaves, uppermost very short; leaves very short-petioled, 
 
 1 AKCEUTHOBIUM, M. Bieb. Dioecious. Male flowers mostly 3-parted. Anthers ad- 
 nate to the middle of the lobes, 1-celled, with one circular opening ; pollen grains spinu- 
 lose. Female flowers mostly 2-parted 7 inferior; ovary ovoid, compressed. Stigma 
 oval or conic. Fruit ovoid, somewhat compressed, opening at base, on an exsert 
 recurved peduncle. Small yellowish or greenish-brown shrubs, parasitic on Coniferce, 
 with 4-angled compressed joints ; opposite leaves reduced to small connate scales ; 
 fructification biennial. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 125 
 
 triangular-ovate from a somewhat oblique, abruptly attenuated base, or 
 oblong, obtuse, with re volute margins; stipules triangular-lanceolate, 
 ciliate; involucre axillary, solitary, canipanulate, hairy on the outside 
 and in the throat, lobes triangular, elongated ; glands ovate with a very 
 narrow tabulate appendage; style short, 2-parted, somewhat thickened 
 at the apex; capsule hirsute with appressed hairs; carpels obtusely cari- 
 nate; seed oblong, 4-angled, transversely wriukled. Purgatory Elver, 
 Dr. Btll. 
 
 EUPHORBIA PETALOIDEA, Engelm. DC. Prod., 15, 2d pt., p. 28. Glab- 
 rous; stems dichotomous, procumbent or ascending; leaves attenuate to 
 the scarcely oblique base, oblong-linear or linear, elliptic, 5"-7" long, 
 lJ"-2" broad, obtuse, mucronulate, entire ; stipules subulate, somewhat 
 entire; involucres, solitary, on pedicels about their own length, campanu- 
 late, lobes hairy beneath the glands within, minutely-ciliate, triangular, 
 acute; glands suborbiculate, concave, with an entire ovate appendage 3 
 times their breadth; style short, bifid; the carpels of the depressed 
 capsule rounded; seed ovate, acute, obsoletely 4-angled. Hall & Har- 
 bour, 512. Canon City, Brandegee. Near Denver, Dr. Smith; B. H. 
 Smith. 
 
 EUPHORBIA FEXDLERI,T. & G. DC. Prod., 15, 2d pt., p. 38. Glabrous, 
 from a slender, short, somewhat woody root-stock; stems numerous, deli- 
 cately filiform, rather rigid, erect or decumbent, much branched dichoto- 
 mously 2'-4' high ; leaves lJ"-2" long, ovate from a rounded base, obtuse, 
 entire, stipules subulate, often laciniate at base; involucres terminal, soli- 
 tary, turbiuate, slightly bearded in the throat, lobes short, ovate, fim- 
 briate; glands transversely oblong with a very narrow obsolete append- 
 age; style short, divaricate, bifid; capsule 1" broad, furnished with a 
 small, somewhat 6-lobed calyx; carpels obtusely carinate ; seed ovate, 
 4-augled, irregularly scrobiculate-punctate. Hail & Harbour , 513. 
 
 EUPHORBIA REVOLUTA, Engelm. DC. Prod. 15, 2d pt., p. 46. Glab- 
 rous; stem erect, filiform, naked below, much branched above the middle, 
 4 / -5 / high; leaves 5"-12" long, J" wide, narrowly linear, entire, obtuse, 
 revolute on the margins, attenuated below, base rather oblique, short- 
 petioled; stipules subulate, entire; involucres very small, uppermost in 
 the forks of the branches and terminal, somewhat truncate, short-cam- 
 panulate, lobes triangular-lanceolate, ciliate; glands purple, 3 or 4 times 
 broader than the whitish or reddish, oblong appendage; styles short, 
 bifid; capsule glabrous, acute, carinate, J" long; seed oblong, sharply 
 4-angled, sparingly and irregularly rugose! Canon City, Brandegee. 
 
 EUPHORBIA ^IACULATA, L. Plains near Denver, Coulter. 
 
 EUPHORBIA OLYPTOSPERMA, E u gel m. Canon City, Brandegee. Colo- 
 rado Springs, Porter. Canby. i'fear Denver, Dr. Smith. 
 
 EUPHORBIA HEXAGONA, Nutt. DC. Prod., 15, 2d pt., p. 52. Somewhat 
 hairy with scattered appressed hairs; stem slender, 1-1 high, erect, 
 annual; branches opposite and dichotomous, striate-angled, lower ones 6' 
 long ; leaves all opposite, short-petioled, linear-lanceolate, attenuate at 
 each end, acute, mucronulate, entire, lower ones with the petiole lj' long, 
 2"-2" wide; fioral ones very narrowly linear; stipular glands minute; 
 invofucre hairy without and' in the throat, short, many cleft; glands 5, 
 transversely ovate, with a green ovate-triangular, acute appendage, 
 twice their length; styles very short, capitate and somewhat 2-lobed at 
 the apex; carpels of the smooth capsule (2" long) obtusely carinate; seed 
 ovate, finely scrobiculate and tuberculate. On the plains. Hall & Har- 
 bour, 511. Plains near Denver, Porter. 
 
 EUPHORBIA MARGINATA, Pursh. Hall & Harbour, 508. Plains near 
 
126 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 Denver, Dr. Smith; B. H. Smith. Plains of the Platte, Coulter. Very 
 abundant on the plains around Colorado Springs, Porter. 
 
 EUPHORBIA OBTUSATA, Pursh. Canon City, Brandegee. 
 
 EUPHORBIA DICTYOSPERMA, Fisch. & Meyer. Hall & Harbour, 510. 
 Eastern Colorado, Porter. 
 
 EUPHORBIA MONTANA, Engelrn. DC. Prod., 15, 2d pt.. p. 148. Perenni- 
 al, very glabrous, glaucous; stems many from a thick root- stock, ascending, 
 leafy, shortly branched from the upper axils or often simple, 8'-15' high ; 
 leaves scattered, rather thick, subsessile, entire, rounded at base, 4"-15" 
 long, ovate, obtuse, the uppermost subverticillate ; floral bracts orbiculate, 
 triangular, rarely subcordate, very obtuse, mucrouulate, broader than 
 long; inflorescence umbellate, the rays becoming repeatedly dichoto- 
 mous; involucre turbiuate, roughish within, the lobes oblong-linear, 
 velvety; glands transversely oblong, truncate, very shortly 2-horned; 
 styles very short, bifid, thickened at the apex ; capsule 2" long, ovate, 
 smooth; seeds oblong, superficially pitted, caruncle shortly conical. Hall 
 & Harbour, 509; Parry, 438. Near Denver, Dr. Smith; B. H. Smith; 
 Canby; Meehan. Cation City, Brandegee. Colorado Springs, Porter. 
 Boulder Canon, Clear Creek Canon, and plains of the Platte, Coulter. 
 
 TRAGIA NEPET^EFOLIA, Miiller. DC. Prod., 15, 2d pt., p. 933. Low, erect 
 or ascending; petioles 4-10 times shorter than the blade; blade lobate-den- 
 tate below, otherwise coarsely dentate; racemes short; bracts lanceolate ; 
 divisions of the pistillate calyx ovate or lanceolate; anthers oblong; fila- 
 ments not thickened at the summit; ovary strigose-hirsute; styles con- 
 nate about one-third their length, rather shortish, erect-spreading, sub- 
 acuminate. 
 
 Yar. RAMOSA, Miiller. DC., I. c., 934. (T. ramosa, Torr., in Ann. F. Y. 
 Lye. 2, p. 245.) Hirsute, erect, much branched, 6'-8' high; stem slender, 
 at length nagelliforni-elon gated, weak and somewhat twining; leaves 
 triangular-ovate from a cordate base or oftener lanceolate, gradually ac- 
 curninate, 8"-12" long. Hall & Harbour, 309. Canon City, Brandeyee ; 
 Redjield; Greene. 
 
 CROTON (HENDECANDRA) TEXENSIS, Miiller. DC. Prod., 15, 2d pt., p. 
 692 ( C. muricatus, Eutt.) Covered with a close, canescent, stellate pubes- 
 cence, dichotomously branched and spreading, l-2 high; leaves peti- 
 oled, lance-ovate, oblong or linear-lanceolate, obtuse or acute, I'-l-J' 
 long, entire or repand ; dioecious, racemes of male flowers short, pedun- 
 culate, somewhat interrupted; glands of the disk compressed obovoid, 
 not coherent, shortly adnate to the calyx; filaments pilose; ovary stel- 
 late-tomentose, softly muricate; styles twice or thrice dichotomously 
 2-parted. On the plains. Hall & Harbour, 514. Banks of the Platte, 
 near Denver, Dr. Smith ; B. H. Smith ; Porter. Canon City, Brandegee 
 
 ARGYROTHAMNIA 1 HUMILIS, Mull. DC. Prod., 15, 732. (Apliora 
 humilis, Eng. & Gr. PI. Lind., 1, p. 54.) Stem about I 6 high, much 
 branched, silky or strigose-pubesceut, branches spreading, ascending, 
 compressed, angled; leaves narrowed at the base, spatulate or obovate- 
 lanceolate or linear-lanceolate, acute, entire, sparingly pubescent, with 
 appressed hairs; raceme shortened, much shorter than the leaves, on 
 very short peduncles; pedicels of the male flowers very short, of the 
 fertile thrice shorter than the calyx. Pueblo, Greene. 
 
 I ARGYROTHAMNIA, Miill. DC. Prod., 15. Male calyx valvate; female imbricated. 
 Petals alternate with the calyx-segments ; evolute or rarely suppressed. Glands of 
 tlie disk opposite the divisions of the calyx, alternate with the petals. Female disk 
 hypogonous, free ; male free or connate with the stamineal column. Stamens cen- 
 tral, outer ones opposite the 5 petals ; anthers dehiscent on each side. Rudiment of 
 an ovary none. Ovules 1 in each cell ; carpels 3, 2-valved ; seeds globose, not arilled. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 127 
 
 URTICACEAE. 
 
 CELTIS OCCIDENTALS, L. Gray j s Manual, p. 443. Canon City, Bran- 
 degee. 
 
 URTICA GRACILIS, Ait. Gray's Manual, p. 444. Plains of the Platte, 
 Coulter. 
 
 URTICA DIOICA, L. Gray's Manual, p. 444. Sierra Madre Eange, at 
 10,000 feet altitude, Coulter. 
 
 PARIETARIA PENNSYLVANIA, Muhl. Gray's Manual, p. 446. Canon 
 City, Brandegee. Median. 
 
 HUMULUS LUPULUS, L. Gray's Manual, p. 446. Hoopes. Along the 
 Platte, Porter. In the Sierra Madre Eange, at 10,000 feet altitude, Coul- 
 ter. Webster Canon, Redjield. 
 
 CUPULIFER.E. 
 
 QUERCUS ALBA, L., var. GUNNISONI, Torr. Pacif. E. R. Rep. 2, p. 130. 
 Shrub 6-10 high; leaves oblong, somewhat coriaceous, with a minute, 
 yellowish, downy pubescence underneath, 3'-5' long, with 3-4 pairs of 
 rather narrow oblong subequal lobes ; lobes subentire, obtuse; fruit on 
 a long peduncle; cup hemispherical, about 5" broad and 3" deep; acorn 
 smaller than that of Q. alba, usually 9" long and 5" in diameter, some- 
 times much shorter and scarcely exceeding the cup. There is a great 
 diversity of views among botanists as to the true position of this oak. 
 Mr. Watson (Amer. Nat. 7, p. 372) regards it as one of the many varieties 
 of Q. undulata, Torr., but it seems so widely different in the shape and 
 section of its leaves and size of the fruit from the figure of that species 
 as given in Ann. X. Y. Lye. 2, pi. 4, that we prefer to retain the old 
 name for the present. At the base of the foot-hills, covering the dry 
 slopes. The most common scrub-oak. Canby ; Hall & Harbour ; Porter ; 
 Coulter. 
 
 QUERCUS EMORYI, Torr., in Emory's Rep., p. 152, pi. 9. A low shrub; 
 leaves coriaceous, oblong, on very short petioles, l'-2' long, variable in 
 size, remotely and repandly toothed, or in the younger ones with deeper 
 and crowded teeth; teeth short, bristle-pointed; glabrous above, yel- 
 lowish-do wny beneath; fruit pedunculate, solitary and in pairs; acorn 
 ovoid or ovoid-oblong, mucronate ; the scales appressed. Canon City, 
 Brandegee. 
 
 CORYLUS ROSTRATA, Ait. Hall tfc Harbour, 516. 
 
 BETFI.ACE.E. 
 
 BETULA OCCIDENTALS, Hook. Fl. Bor. Am., 2, p. 155. Watson iuKhiffn 
 Rep., vol. 5, p. 323, pi. 35. Shrub 8-12 high ; branches dark reddish- 
 brown, sprinkled with resinous warts; leaves I'-IJ' long, 9 // -15 // wide, 
 thin, broadly ovate, acute, truncate or ctmeate at base, smooth above, 
 lighter colored beneath, petioles, margins and veins somewhat hairy, 
 not punctate, irregularly toothed or serrate, serratures short and glandu- 
 larly mucrouate ; petioles slender, 3"-(j" long ; fruiting ainents cylindri- 
 cal, 9 // -12 // long; peduncles suberect, leafy, 3"-5" long; scales pubes- 
 cent, ciliate, the lateral lobes divergent, quadrangular; seeds with 
 wings twice broader than the body. Hall & Harbour, 518; Canby ; 
 Porter. Along the Platte near Denver, Coulter. 
 
 BETULA GLANDULOSA, MX. " Subalpine," Hall & Harbour, 517. Twin 
 Lakes, Porter. Sierra Madre Range, Coulter. 
 
 ALNUS VIRIDIS, Ait. Hall & Harbour, 519. 
 
 ALNUS IXCANA, \Villd. Ute Pass, Porter. 
 
128 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 SAL.ICACE.E. 
 
 SALIX NIGRA, Marsh., var. AMYGDALOIDES, Anders. DC. Prod., 16, 2d 
 pt., p. 201. Fertile aments spreading, thiekish; scales sparingly pilu ,< ; 
 leaves broadly lanceolate, long and sharply attenuate-acuminate, of leu 
 subfalcate, very smooth, glaucous beneath ; capsules long-pedicel< j d, 
 very glabrous. * Eesembles S. lucida. A shrub or small tree, conn u>.i 
 along the PI a tte. Dr. Smith; Porter. 
 
 SALIX LONGIFOLIA, Muhl., var. ARGYROPHYLLA, Xutt. DC. Prod, 
 16, 2d pt., p. 214. Leaves and capsules clothed with a silvery-shining 
 tomeutum, becoming glabrate with age, Banks of the Platte, Dr. Smith ; 
 B. H. Smith; Porter. Twin Lakes, Coulter. 
 
 SALIX DISCOLOR. Muhl. Twin^Lakes, at 10,000 feet altitude, Coulter. 
 
 SALIX LIVIDA, Wahl., var. OCCIDENT ALIS, Gr. (S. rostrata, Richards.) 
 Hall & Harbour, 522. Saint Train Canon, Coulter. 
 
 SALIX CHLOROPHYLLA, Anders. Twin Lakes and Mount Lincoln, at 
 11,000 feet altitude, Coulter. 
 
 SALIX CORD AT A, Muhl. Hall & Harbour, 524. Near Denver, Coulttr. 
 
 Var. ANGUSTATA, Anders. Bear Creek, 15 miles west of Denver, 
 Coulter. 
 
 SALIX GLAUCA, L. DC. Prod., 16, 2d pt,, p. 280. Shrub of variable 
 height, often low: aments leafy-peduneled, cylindrical, thickish, rather 
 dense-flowered; scales acutish or obtuse, fulvous, darker at the apex, vil- 
 lous with long white hairs; capsules ovate-lanceolate, obtusish, densely 
 snowy-torn entose, scarcely pedicelled; pedicel about the length of the 
 nectary; style produced, usually bifid; divisions of the stigmas divari- 
 cate; leaves elliptical-lanceolate, mostly silky-villous 011 both sides, be- 
 coming somewhat glaucous beneath, veiny, entire. 
 
 Var. SERICEA, Anders. Leaves pilose with silvery hairs, broadly oval, 
 ovate, obovate or lanceolate, acute or obtuse, l'-2' long. " Subalpine,'" 
 Hall & Harbour, 523. Gray's Peak, Dr. Smith. Mount Lincoln, at 13,000 
 feet altitude and White House Mountain, Coulter. South Park, Porter. 
 
 Var. PULLATA, Anders. Leaves smoother, glaucous beneath. Ute 
 Pass and South Park, Porter. Mount Elbert near Twin Lakes, at 12,000 
 feet altitude, and Sierra Madre Eange, Coulter. 
 
 SALIX DESERTORUM,Bichards. DO.Prod.,16,2d pt.,p.281. Low,2-3 
 high; aments very short, 6" long, subglobose, dense-flowered; scales 
 pale rose-color, densely white- villous; capsules ovate, conic, white- 
 woolly, sessile; style 2-parted, brown; leaves narrowly oblong, 6"-12" 
 in length, 2 // -4 // wide, obtusish, rigid, more or less white-tomentose be- 
 neath, midrib prominent, yellow ; staminate ameiits very small, 2 // -4 // 
 jong. Mount Elbert, near Twin Lakes, Porter. 
 
 SALIX ARCTICA, Pall., var. BROWNEI, Anders. DC. Prod., 16, 2d pt., p. 
 286. Dwarf, branches decumbent and much spreading; leaves spatulate- 
 oblong, oblong, or oblong-elliptical, about V long; aments lateral and sub- 
 terminal, short, 6"-8" long, on long, leafy peduncles; capsules mostly 
 grayish-tomentose; style elongated; leaves nearly smooth or hairy, en- 
 tire or remotely serrulate, pale and very veiny beneath. Hall & Har- 
 bour, 520; Parry. Gray's Peak, Dr. Smith. White House Mountain, at 
 13,000 feet altitude, Coulter. 
 
 SALIX RETICULATA, L. DC. Prod., 16, 2d pt., p. 301. Decumbent, 
 rather stout; branches leafy at the summit; auieut terminal, very long- 
 peduncled, densely flowered, narrowly cyliudric; peduncle leafy; scales 
 yellowish -pink, rounded ovate; capsule oval-ovate, sessile, hoary to- 
 
SYNOPSIS OF THE FLORA OF COLORADO. 129 
 
 mentose; nectary somewhat cup-shaped, surrounding the base of the 
 capsule and often exceeding it; style very short or none; stigmas 2-cleft, 
 brown, divaricate; leaves 6"-9" long, oblong or suborbicular, mostly 
 rounded at the apex, glaucous beneath, reticulately veined, entire, ob- 
 tuse at base or subattenuate into along and slender petiole; sterile 
 aments 2"-4 // long and very loosely flowered ; fertile aments also short, 
 3"-5" long, densely flowered, on long naked peduncles. Alpine, Hall & 
 Harbour, 521. Sangre de Oisto Pass. Brandegee. 
 
 POPULUS TREMULOIDES, MX. Known as "Quaking Asp," and very 
 coininon at middle elevations. Hall & Harbour, 527. South Park, Coul- 
 ter. Dr. Smith. 
 
 POPULUS BALSAMIFERA, L., var. CANDICANS, Gr. Commonly called 
 " Cotton wood." Hall & Harbour, 526; Dr. Smith. Chicago Lakes, Co ul- 
 ter. 
 
 Var. ANGUSTIFOLIA, Watson. King's Rep., vol. 5, 327. (P. angusti- 
 foUa, James. Branches terete, glabrous; leaves ovate-lanceolate, atten- 
 uate at base, acute, glabrous, crenate-serrate. Common along the 
 Platte. Hall & Harbour, 525. Upper Arkansas, Porter. Canby. 
 
 POPULUS ANGULATA, Ait. Very abundant along the Platte near 
 Denver, Dr. Smith. 
 
 CONIFERJg. 
 
 PINUS CONTORTA, Dougl. DC. Prod., 16, 2d pt., p. 381. A low tree, 
 10-30 high; bud-scales lanceolate, acute, sublacerate; sheaths short; 
 leaves in pairs, l'-2' long, numerous, rigid, erect-spreading, semi-terete 
 and deeply channeled, inucronate and subacute, scarcely roughish on 
 the inargiu ; cones 1-4, verticillate, l'-2' long, 10"-15" wide, ovoid, sub- 
 obtuse, straight or curved, persistent; scales 3"-4" wide, with a shining, 
 pyramidal, 4-sided summit, the transverse ridge acute, inucronate with 
 a deciduous, straightish or incurved spine. Newberry in Pacif. R. R. 
 Rep. Bot, vol. 6, p. 35, pi. 5. 
 
 Var. LATIFOLIA, Eng. Mountain form, 15-25 high ; branches short 
 and few, recurved with age; foliage sparse, often profusely cone-bear- 
 ing ; allied to the eastern scrub-pine, P. inops, which it closely resem- 
 bles; known as "Red Pine." 7 Parry remarks: "It is quite abundant on 
 the crest and slopes of dry subalpine ridges, forming the principal part 
 of the forest there and extending to near the snow-line; asymmetrical 
 tree of rapid growth, with slim and tapering trunk a foot in diameter, a 
 smoothish, grayish-brown bark, detached in thin scales, and tough but 
 coarse wood, which is liable to warp, and rarely cut into boards ." 
 Mount of the Holy Cross, Coulter. Twin Lakes, Porter. 
 
 Pmus PONDEROSA, Dougl. DC. Prod., 1. c., p. 395. Tall, with wide- 
 spreading or subpendulous branches, ascending at the ends, somewhat 
 twisted; bud-scales lanceolate-acuminate, fimbriate-ciliate on the mar- 
 gin; sheaths rather long; leaves in threes, rather long, 4 / -10 / , and f"-l" 
 broad, clustered at the ends of the stout rigid brauchlets, scabrous on 
 the margin, rather sharply mucrouate ; male aments several, fascicled 
 in heads, long-cylindrical, obtuse, straight or curved; autheriferous 
 bracts suborbicular, crenate-flentate; cones 3-4. subsessile, subpendulous, 
 straight or conic-cylindric^'-G' long, lJ'-2' wide; scales I'-IJ 7 long, 6"-9" 
 wide, the subrhombic summit elevated, radiately cracked, the trans- 
 verse ridge acute, the inucro stout, sharp and recurved ; bracts persist- 
 ent, thickened; seed oval, 3"-5" long, the wing oblong, obtuse, I 7 long. 
 A stately, symmetrical tree, reaching a height of 70 to 100 feet, with a 
 9 F c 
 
130 SYNOPSIS OF THE FLOE A OF COLORADO. 
 
 light red bark, yellowish -brown within, cracking irregularly and cleav- 
 ing into small, very irregularly shaped scales ; known commonly as the 
 "Yellow Pine," and a most valuable timber-tree. Common through all 
 the lower slopes and less elevated districts of the mountains. Newberry, 
 1. c., p. 36, pi. 4. Hall & Harbour; Porter; Coulter. 
 
 FINDS FLEXILIS, James. DC. Prod., I. c., p. 403. Tree of medium size ; 
 lower branches horizontal, upper ones ascending; bud-scales ovate, 
 acuminate, subfimbriate; sheaths 6" long, of several ovate and linear- 
 oblong, obtuse, deciduous scales ; leaves l'-3' (usually 2') long, J" wide, 
 in fives, densely crowded at the ends of the branchlets, rigid, smooth, 
 obtusely mucronate ; sterile aments numerous, 3"-5" long, in a thick, 
 subterminal spike ; cones resinous, 3-4, oval-oblong to ovate-cylindric, 
 2J'-5' long, l$'-2' broad, obtuse ; scales very broad, 8"-15", with a short 
 cuueate base, thick, pitted usually on both sides, the compressed sum- 
 mit terminating in the erect, acute, semicircular, transverse ridge, and 
 a subrhonibic, acutish umbo; seed 4"-5" long, 2J" wide, pale-colored 
 with a rudimentary wing. Bark thin, scaly, reddish or sometimes gray. 
 Rare. Divide west of South Park, Porter. Hall & Harbour, 529. 
 
 PINUS ARISTATA, Engelm. DC. Prod., I. c., p. 400. Trans. Acad. Saint 
 Louis, vol. 2, t. 5 and 6. A tree of medium size, 40-50 high and l-2 
 in diameter; in alpine situations a stunted bush; leaves in fives, 
 crowded, erect, curving, 3-augled, smooth, obtusely inucrouate, deep 
 green, sides marked by a longitudinal, white-glaucous stripe l'-2' long; 
 sterile aments aggregated, oval, bracteate at base ; cones horizontal, 
 violet-brown, ovate or ovate-oblong, obtuse, resinous, 3 / -4 / long, 1J 7 
 broad ; the apophysis of the scales dark-violet, rhombic, not prominent; 
 transverse ridge acute; umbo small; awn lanceolate-subulate, rather 
 long, straight ; seeds obovate-oval, convex on both sides, nearly twice 
 shorter than the obtuse, broadish wing. A species known only from the 
 alpine regions of the Rocky Mountains of Colorado. Hall & Harbour; 
 Parry; Coulter. 
 
 PINUS EDTJLIS, Engelm. DC. Prod., /. c., p., 398. A low, round-topped 
 tree, branched from the base or near it, 10-15 high, very strongly res- 
 inous; leaves mostly in pairs, rarely in threes, compressed-triqetrous, 
 semiterete and when dried appearing channeled, always short, rigid, 
 spreading, curved or straightish, smooth on the margin, niucronate, 
 pungent, green on the back, white-glaucous, I'-IJ 7 long (rarely 2'); bud- 
 scales ovate-lanceolate, acute, subentire on the margin, not fimbriate- 
 conuected, teeth very short, at length lacerate; sterile aments several, 
 small, oblong, obtusish, densely crowded in a short spike; antheriterous 
 bracts ovate-orbicular, nearly entire; cones sessile, subglobose, 2' long 
 and almost as broad ; apophysis of the scales raised-pyramidal, thick, 
 somewhat 3-angled, truncate at the apex, awnless ; seeds in each scale 
 2 or solitary, oblong, very convex, subaugled, brown, solid, wingless, 
 3"_4// i n length, edible. The " Pinon " of the Mexicans. A small, round- 
 topped tree, branched from the base or nearly so and resembling a small 
 apple-tree. The wood is full of resin and extremely slow to decay, thus 
 furnishing excellent fuel for camp-fires. The nutlets, which are about 
 the size of a pea, are agreeable to the taste, with a slight terebin- 
 th in ate flavor, and are much sought after by the Indians. It abounds in 
 Southern Colorado on the foot-hills and at lower elevations. Its north- 
 ern limit in Colorado appears to be about ten miles south of Twin Lakes, 
 at the base of the Snowy Range, and at Colorado Springs, east of the 
 mountains. Hall & Harbour, 532; Porter ; Coulter. 
 
 ABIES ENGELMANNI, Parry. (Pinus commutata, Parl. DC. Prod., I. c. f 
 
SYNOPSIS OF THE FLORA OF COLORADO. 131 
 
 p. 417.) Known as "White Pine. 77 Dr. Parry found it "composing 
 almost the entire forest growth of the mountain slopes of Middle Park 
 about the head of Grand River ; a magnificent tree, 80 to 100 feet high, 
 with an even, columnar trunk, below, 2-2 feet in diameter, tapering 
 upwards, of rapid growth ; bark scaly, smooth, and quite thin, of a 
 purplish-brown color, full of tannin. The wood is remarkably white 
 and soft, free from knot and scarcely resinous, preferred for inside 
 work. 77 A tall tree, 60-100 high, becoming much dwarfed at higher 
 elevations, pyramidal ; branches verticillate, lower horizontal, the upper 
 ascending, branchlets puberulent ; bark light-reddish ; wood soft, white ; 
 leaves solitary, crowded, turned every way, short, curved or straight, 
 rigid, compressed 4-augled, very short-mucronate, smooth on the angles, 
 white-punctate 011 the sides beneath the green ; sterile anients thick, 
 ovate or ovate-cylindrical, obtuse, nearly equaling the leaves; anthe- 
 riterous bracts almost orbicular, deutate-fiinbriate, ovate-cylindrical, 
 obtuse; scales numerous, imbricated, subcartilaginous, obovate, rhom- 
 bic, subtruncate or einarginate, creuulate-eroded ; bracts ovate-oblong, 
 obtusish, irregularly dentate, 3 times shorter than the scale ; seeds small, 
 oval, convex on both sides, 3 times shorter than the obovate wing ; cones 
 2J'-3' long, I 7 1 J' broad, purplish- brown when mature ; nutlets brown, 
 with an almost violet wing. Closely allied to A. nigra, the "Black 
 Spruce 77 of the East. Hall & Harbour ; Parry; Coulter ; Hoopes ; Meehan. 
 ABIES MENZIESII, Liudl. (Pinm, Par!. DC. Prod., 16, /. c., p. 418.) A 
 tall tree, attaining a height of 100 feet, straight, pyramidal ; branches sub- 
 verticillate, spreading, upper ones ascending ; leaves solitary, crowded, 
 turned every way, short, curved or straight, rigid, thickish, compressed, 
 4-augled, iimcrouate-pungent, marked on each side of the prominent 
 nerve with a white glaucous line ; sterile aments, thick, oblong, obtuse, 
 9"-12" long; autheriterous bracts suborbicular, cristate-dentate; leaves 
 6 // -12 // long; fertile ameuts oblong-cylindrical, obtuse, curving ; cones 
 solitary or somewhat clustered, subsessile, subnoddiug, cylindrical or 
 oval, obtuse, 2'-5' long, 12"-15" wide, light-brown, obtuse ; scales thin, 
 5"_7" wide, oval or sub-rhombic, more or less elongated above, obtuse 
 or subemargiuate and erose-dentate ; bracts small; seeds V-1%" long; 
 wing obovate, oblong, obtuse, 4 // -6" long, pale. Known as " Balsam. 77 
 Parry says : "A finely-shaped tree, though of rather stiff outline, of rapid 
 growth ; w r ood very compact, but rather coarse-grained aud pitchy ; the 
 logs taper too rapidly to saw up to advantage.' 7 Cones pendulous from 
 the ends of the branches ; leaves stouter than in any other allied species, 
 stiff and very acute ? alinost spinescent. Hall & Harbour, 533 ; Hoopes; 
 Coulter ; Porter. 
 
 ABIES GRANDIS, Liudl. (Pinus, Parl. DC. Prod, 16, /. c., p. 427.) Tall, 
 pyramidal, with horizontal branches; leaves 6"-l" long, 1" broad, nu- 
 merous, in two rows, spreading or erect, rigid, straight or curved, more or 
 less contracted and twisted above the base, obtuse or emarginate, green 
 and subsulcate above, strongly keeled and glaucous beneath ; cones 
 2'-3' long, l-2' wide, solitary, erect, oblong, obtuse, greenish ; scales 
 7//_10" long, 9"-12" broad, horizontal and close-pressed, broad cuueate 
 and unguiculate, the rounded upper margin subreflexed and usually 
 resinous, pubescent, much exceeding the obcordate, toothed, short-mu- 
 cronate bracts; seed 3" long, 2'' wide, obovate, cuueate, angled ; wing 
 nearly equaling the scale, somewhat 4-sided ; bark rather thin, pale 
 gray or brownish; wood fine-grained aud tough. Kare in Colorado. 
 Chiann Canon and Glen Eyrie, Porter. Parry. 
 
 ABIES DOUGLASII, Lindl. (Pinus, Parl. DC. Prod, 16, 1 c., p. 430.) A 
 
132 . SYNOPSIS OF THE FLORA OF COLORADO. 
 
 tall, pyramidal tree, with horizontal, drooping branches ; leaves solitary, 
 crowded, somewhat 2 rowed, Q"-W long, " wide, numerous, straight 
 or curved, rigid, flat, linear, obtuse, entire, twisted above the rounded 
 base ; sterile aments 6"-8" long, approximate, the anther-crest short 
 lanceolate, erect ; fertile aments purple, the lobed foliaceous bracts long- 
 exserted, usually reflexed ; cones l'-4' long, I'-IJ' wide, somewhat 
 clustered, pendulous, obtusish ; scales concave, rounded, entire, pubes- 
 cent ; bracts long-exserted, biiid, the acuminate, suberose, dentate lobes, 
 shorter than the cuspidate midnerve ; seed 3" long, acutely margined, a 
 little shorter than the oblong, obtuse wing. " Abundant through the 
 eastern mountain district, except on the higher elevations. A very 
 sightly tree, of the average height of 80 feet, with a graceful oval out- 
 line ; the spreading branches curving upwards at the extremities. 
 Wood of slow growth, but very indifferent, inclined to warp and crack, 
 turning reddish-brown in drying." Known as the " Swamp Pine." Hall 
 & Harbour, 534 ; Parry; Coulter; Porter. 
 
 JUNIPERUS COMMUNIS, L., var. ALPINA, L. Dr. Smith; Hoopes. Twin 
 Lakes and Long's Peak, Coulter. 
 
 JUNIPERUS VIRGINIANA, L. Hoopes ; Brandegee. 
 
 UGOTJVACEJE. 
 
 LEMNA MINOR, L. In the Platte, near Denver, Porter. 
 
 TYPHACE^E. 
 
 TYPIIA LATEFOLIA, L. Wet Mountain Valley, Brandegee. 
 SPARGANIUM SIMPLEX, Huds. Wet Mountain Valley, Brandegee. 
 Var. ANGUSTIFOLIUM, Eugelm. Parry. 
 
 POTAMOGETON NATANS, L. Denver, Dr. Smith. 
 
 POTAMOGETON PERFOLIATUS, L., var. LANCEOLATUS, Bobbins, 
 
 Gratfs Manual, p. 488. Growing on the bottom of Twin Lakes, Coulter. 
 Brandegee; Dr. Smith. 
 
 AL.ISUIACE.E. 
 
 TRIGLOCHIN PALTJSTRE, L. Hall & Harbour, 540. South Park, Porter. 
 
 TRIGLOCHIN MARITIMUM, ~L.Hall & Harbour, 541. Canon City, Bran- 
 degee. South Park, Coulter; Porter. 
 
 SAGITTARIA VARIABILIS, Eng. Divide between Denver and Colorado 
 Springs, Porter. 
 
 ORCHIDACEJB. 
 
 HABENARIA HYPERBOREA, E. Br. Hall & Harbour, 535. Mount El- 
 bert, near Twin Lakes, at 10,000 feet altitude, Horse Shoe Mountain, and 
 in the Sierra Madre Range, Coulter. Ute Pass, Porter. 
 
 HABENARIA DIL AT AT A, Gr. Neehan. Sierra Madre Range, Coulter. 
 Wet Mountain Valley, Redfield. 
 
 HABENARIA OBTUSATA, Lindl. Hall & Harbour, 536; Parry. Twin 
 Lakes, at an elevation of 10,000 feet, Coulter. 
 
 GOODYERA MENZIESII, Lindl. Golden, Greene; Eedjield. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 133 
 
 SPIRANTHES BOMANZOFFIANA, Cham. Hall & Harbour, 539; Canby ; 
 Hoopes. Wet Mountain Valley, Brandegee. Meehan. Horse Shoe Moun- 
 tain, at 11,000 feet altitude, Coulter. 
 
 LISTERA CORD AT A, E. Br. West of Denver, Greene. 
 
 CALYPSO BOREALTS, Salisb. Hall & Harbour, 537. South Park ; Wet 
 Mountain Valley, Brandegee. 
 
 CORALLORHIZA MULTIFLORA, Nutt. Green Horn Mountains, Greene 
 
 CYPRIPEDIUM PARVIFLOBUM, Salisb. Wet Mountain Valley, Bran- 
 degee. 
 
 CYPRIPEDITJM PUBESCENS, Willd. Foot-hills near the Platte, west 
 of Denver, Coulter. 
 
 HYPOXYS JUNCEA, Smith. Sparingly hairy; leaves filiform; scapes 
 1-3, filiform, 1-2 flowered; bracts bristle-like, shorter than the villous 
 pedicels, divisions of the perianth oblong, the three exterior ones green- 
 ish and hairy without; partitions of the capsule vanishing at maturity; 
 seeds black, minutely pitted. Scape 4'-9' long, at length procumbent. 
 Flowers 9 // -12 // wide. Grape Creek, Brandegee. 
 
 IRIDAf E,E. 
 
 IRIS TENAX, Dougl. ? Dr. Smith; Brandegee; Hall & Harbour, 542. 
 SISYRINCHIUM BERMUDIANA, L. Colorado Springs, Porter. Bear 
 Creek, Coulter. 
 
 SMII.ACE JE. 
 
 SMIL AX ROTUNDIFOLIA, L. Colorado Springs, Porter. 
 
 ZYGADENUS GKLAUCUS, Kutt. Hall & Harbour, 550; Canby ; Porter. 
 Mount La Plata, at 11,000 feet altitude, and Mount Lincoln, at 13,000 
 feet, Coulter. 
 
 ZYGADENUS ^UTTALLII, Gr. (Amianthium Xuttallii, Gray. Var. a. 
 Ann.y. Y. Lye., 4, p. 123.) Bulb tunica ted; stem 8 / -20 / high, slender, with 
 several elongated narrowly-linear bracteiform leaves, which are semi- 
 amplexicaul or the lower slightly sheathing; lower leaves 2 // -4 // wide, 
 folded-carinate, usually shorter than the stem, rough on the margin ; 
 raceme simple, usually very short, l'-3' long, rarely 10'; flowers 
 crowded, bracteate, on slender, elongated pedicels ; lower bracts usually 
 foliaceous, the upper membranous; sepals lj^-3" long, ovate- ellipti- 
 cal, very obtuse, abruptly narrowed, and slightly glandular at base; 
 ovary-cells 12-14 ov tiled; capsule oblong-ovate, (V long; seeds 2J" long, 
 oblong. Hall & Harbour, 551. Wet Mountain Valley, Brandegee. Clear 
 Creek Canon, Coulter. 
 
 STREPTOPUS AMPLEXIFOHUS, DC. Hall & Harbour, 543. Bear 
 Creek, Coulter. 
 
 S3HLACINA RACEMOSA, Desf., var. AMPLEXICAULIS, Watson. King's 
 Rep., vol. 5, p. 345. (8. amplexicauUs, Nutt. Jour. Acad., Phil. 7, p. 58.) 
 Leaves closely sessile and amplexicaul, shortly acuminate or only acute; 
 style at least half as long as the ovary and equaling the stamens. Dis- 
 tinguished at once from the usual form by its less acuminate sessile 
 leaves and longer style and filaments. Wet Mountain Valley, Brandegee. 
 Along the Platte, near Denver, Coulter. 
 
134 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 SMILACINA STELLATA, Desf. Hall & Harbour, 544. Wet Mountain 
 Valley, Brandegee. Near Denver, Dr. Smith ; B. H. Smith. Colorado 
 Springs, Porter ; Meehan. Saint Vrain River, Clear Creek and Middle 
 Boulder, Coulter. 
 
 LILIUM PHILADELPHIOUM, L. Bear Creek and Platte Eiver, just 
 within the foot-hills, Coulter. Chiann Canon, Porter. 
 
 CALOCHORTUS 1 GuNNisoNi, Watson. King's Rep., vol. 5, p. 348, 
 fC. venustus, var. Torr. Bot. Gunnison's Rep. Pac. R. R. Surv., 2, p. 130.) 
 Petals rounded at the apex, white above, yellowish -green below the 
 middle and dark purple at base, strongly bearded with lougish, gland- 
 tipped hairs, which are also dark purple at base, the densely hairy 
 laud transverse and occupying nearly the whole width of the petal ; 
 aathers 5" long, rather exceeding the somewhat dilated filaments, ob- 
 long-lanceolate, subcordate at base, narrowed above into an awn-like 
 termination or acute; immature capsule narrowly oblong, attenuate 
 above. Stem 6'-20' high, simple, 1-4 flowered with 1-3 narrowly linear, 
 revolute leaves, 2 / -4 / long, the radical ones (1-few) longer (8'-12',) and 
 usually broader (4".) Hall & Harbour, 549 ; Parry. Denver, B. H. 
 Smith. Colorado Springs, Porter. Meehan. Plains of the Platte, Pleas- 
 ant Park, South Park, and Weston's Pass, Coulter. 
 
 LLOYDIA 2 SEROTINA, Reich. 'Kunth. Enum., 4, p. 244. Stem 1-2 flow- 
 ered, slender, erect or ascending, 2'-5' high; radical leaves filiform, 
 equaling or longer than the stem, somewhat rigid, triangular, semi- 
 terete or teretish, cauline ones short, linear-lanceolate, amplexicaul and 
 somewhat sheathing ; sepals 4 // -5 // long, obovate, with 3 purplish lines. 
 Alpine. Pike's Peak. Hall & Harbour, 552 ; Porter. Gray's Peak, 
 at 1,200 feet altitude, Coulter; Red field. 
 
 ERYTHRONIUM GRANDIFLORUM, Pursh. Leaves 4 / -8 / long, l'-2' 
 wide, oblong or elliptic-lanceolate, somewhat rough-margined, not spot- 
 ted or punctate ; scape 6'-l5' high, 1 (or more) flowered; segments yel- 
 low, O^-lo" long, narrow-lanceolate, acuminate, reflexed; stigma capitate 
 or more or less 3-cleft and spreading; capsule 9"-18" long, 4"-5" wide, 
 oblong or obovoid, subtriangular, on a short stipe. White House Moun- 
 tain, at 13', 000 feet altitude, August, in flower, and Sierra Madre Range, 
 at 11,000 feet, in fruit, Coulter. 
 
 'CALOCHORTUS, Pursh. (Including Cydobothm, Sweet.) Perianth 6-parted, regular, 
 deciduous, ventricose or broadly campanulate ; sepals distinct, convolute in aestivation, 
 the outer smaller, often greenish, oblong or lanceolate, acute or acuminate, spreading, 
 usually beardless, the inner broadly obovate, cuneate and subunguiculate, bearded 
 within and with a glabrous spot or nectariferous pit above the base. Stamens 6, in- 
 serted at the base of the sepals. Filaments subulate. Anthers linear-oblong, deeply 
 perforated at the base for the insertion of the filament, erect, versatile. Ovary free, 
 triangular, scarcely attenuate at the apex, 3-celled with numerous horizontal anatro- 
 pous ovules in two rows. Stigmas 3, sessile or sub-sessile, narrow, folded, recurved, 
 persistent. Capsule triangular, coriaceous-chartaceous, septicidally 3-valved. Seeds 
 usually in one row, somewhat compressed, angular, with a loose, cellular testa. 
 Embryo straight, terete, eccentric. Herbs with tunicated bulbs, erect, somewhat 
 branched, leafy, few-flowered stems, narrow and acuminate leaves, and terminal 
 flowers. 
 
 2 LLOYDIA, Salisb. Perianth 6-parted, regular, persistent ; sepals distinct, subequal, 
 spreading, with a transverse margined nectariferous fold above the base, imbricate in 
 aestivation. Stamens 6, inserted at the base of the sepals, erect-spreading ; filaments 
 subulate-filiform ; anthers oblong, rounded at the apex, deeply perforated at the emar- 
 ginate base for the insertion of the filament, erect, versatile, longitudinally dehiscent 
 along each margin. Ovary free, clavate-oblong, triangular, 3-celled, the ovules nu- 
 merous, in two rows, horizontal, anatropous. Style persistent ; stigma rather thick, 
 shortly 3-lobed. Capsule ob ovate-elliptical, triangular, papyraceous, loculicidally 
 3-valved at the apex. Seeds in two rows in each cell, flattened, with a brown, mern- 
 branously margined testa and very small embryo. Bulbous herbs, stem simple, leafy; 
 leaves narrow and grass-like ; flowers erect, white, with purple or greenish veins. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 135 
 
 LEUCOCRINUM l ZNIOXTANUM, "KTutt. Leaves 6'-8' long, l"-3" wide, 
 flat or somewhat folded toward the base, thick, finely striate-veined, 
 decumbent-, outer bracts broad, acute or obtuse, the inner narrower and 
 elongated; flowers 4-8, much shorter than the leaves ; peduncles J'-lj' 
 long, all radical, one-flowered; tube persistent, l'-2' long, filiform, seg- 
 ments of the limb 6"-12" long, oblong-lanceolate, acute; anthers linear, 
 about "2" long; style equaling the filaments; capsule 3"-4"m diameter. 
 Abundant on the plains east of the mountains. A charming little plant 
 with delicate, snow-white, fragrant flowers which appear in early 
 spring. Hall & Harbour, 548. Colorado Springs, Porter. Canon City, 
 Brandegee. Plains around Denver, Coulter. Watson in King's Rep., 
 vol. 5, pi. 36. 
 
 ALLIUM CERXUTTM, Roth. Near Denver, Dr. Smith. Colorado Springs 
 and South Park, Porter. Canon City, Brandegee. Hall & Harbour, 547 ; 
 Meehan; Canby. Common on the plains near Fairplay, Coulter. 
 
 ALLIUM RETICULATUM, Fraser. Watson in Rev. King's Rep., vol. 
 5, p. 486. Coats densely fibrous; pcape 6'-15' high, sub terete; leaves 
 very narrowly linear, elongated; umbel few-many-flowered, spread- 
 ing; stamens and style shorter than the usually acute (3"-4" long) 
 sepals; capsule crested, crest mostly short ; very variable. 
 
 Var. , (Watson.) Low, 6'-8' high; sepals 3" long, white or slightly 
 pinkish, acuminate. Hall & Harbour, 545. Wet Mountain Valley, Bran- 
 degee. Monument Park, Coulter. 
 
 Var. , (Watson.) Taller, 10'-15' high, slender; bulb less densely 
 fibrous; sepals white or pink, 3 7/ 4" long, acuminate and strongly cari- 
 uate, sometimes but little exceeding the stamens. Hall & Harbour, 546. 
 
 Var. Y-) (Watson.) Like the last, but the pedicels rather more slender; 
 sepals usually more recurved and the whole lower stem with the bulb 
 thickly fibrous-coated. Wet Mountain Valley, Brandegee. Weston's 
 Pass, Coulter. 
 
 YUCCA A^GrUSTiFOLiA, Pursh. Engelm. Rev. in King's Rep., vol. 5, 
 p. 496. Stems none or short; leaves narrowly linear, scarcely nar- 
 rowed above the broad base, rigid, spiny-pointed, nearly flat above, 
 convex below, with very slender marginal fibres, 1J-2J long; flowers 
 spiked; petals broad-ovate, IJ'-lf long; stigmas half as long as the 
 ovary, sessile, erect; capsule cylindric-ovate, thick, obtuse, short-pointed, 
 dry, erect, septicidally 3-valved from the apex, the valves at last again 
 divided at tip; seeds very thin, smooth, large, 5"-l" in diameter, with a 
 wide margin; albumen not ruminated. Plains of the Platte, Coulter; 
 Porter. Along the base of the foot-hills, and called by the Mexicans 
 "Soap Weed." 
 
 JUNCACE.E. 
 
 LUZULA SPADICEA, DC., var. PARVIFLORA, Ledeb. (L. parviflora, 
 Desv., var. melanocarpa, Gr. in Manual, p. 536.) Hall & Harbour. 555. 
 Mount Lincoln, at 12,000 feet altitude, and Clear Creek Canon, Coulter. 
 
 1 LEUCOCRINUM, Xutt. Perianth corolline, salver-shaped, marcesceut ; tube very 
 slender, elongated ; limb 6-parted, regular. Stamens 6, nearly equal ; filaments adnate 
 to the tube nearly the whole length, filiform; anthers erect," becoming curved, linear, 
 2-celled, attached by the emarginate base, introrse, with a lateral dehiseence. Ovary 
 globose-ovate, 3-celled ; ovules about 12 in each cell, in 2 rows, horizontal or subpendul* >us, 
 on short foot-stalks. Style filiform, undivided ; stigma dilated into a somewhat tri- 
 angular cup. Capsule .subglobose, obtusely triangular, membranous, loculicidally de- 
 hiscent. Seeds 5-6 in each cell, in 2 rows, subglobose. A perennial acaulescent herb, 
 with a short, thick subterranean root-stock and fleshy spreading elongated rootlets ; 
 leaves thick, linear, surrounded at base by membranous bracts ; flowers white, pe- 
 duncled. 
 
136 SYNOPSIS or THE FLORA OF COLORADO. 
 
 LUZULA SPICATA, Desv. Hall & Harbour, 554. Calion City, Brande- 
 gee. Denver, Dr. Smith. 
 
 JUNCUS BALTICUS, Deth., var. MONTANUS, Eng. Trans. St. Louis 
 Acad., vol. 2, p. 442. Sepals of nearly equal length, inner ones more 
 obtuse; anthers 4 times the length of the very short filament; capsule 
 ovate-pyramidal, angled, beaked; seeds smaller, narrower and longer 
 pointed. Abundant everywhere in damp grounds, on the plains and in 
 the mountains. Near Denver, Dr. Smith. Hall & Harbour, 567 ; Porter. 
 
 JUNCUS DKUMMOINDII, E. Mey. Eng. Rev., I. c., p. 445. Csespitose ; 
 stems l-lj high, terete, filiform; sheath bristle-pointed; spathe ^'-IJ' 
 long, mostly surpassing the simple, about 3-flowered panicle; sepals 
 lanceolate, acute, or the outer ones acutish and scarcely longer than 
 the inner ones, more than twice exceeding the 6 stamens, 3" or more 
 long; anthers linear, a little longer than the filament; stigmas shorter 
 than the slender, prismatic ovary crowned with a very short style, 
 included; capsule ovate-oblong, triangular, retuse, 3-celled, equaling 
 or a little shorter than the sepals; seeds ovate, striate-reticulate, long 
 tailed, the body 3", including the tails, V long. Hall & Harbour, 563. 
 
 JUNCUS HALLII, Engelm. Rev., I .c., p. 446. ( J. arcticus, Willd., var. gra- 
 cilis, Hook.?) Caespitose; stems 6 / -12 / high, terete, filiform, much longer 
 than the setaceous, terete leaves; leaves 2 / -5 / long, grooved just above 
 the sheath; spathe scarcely or a little surpassing the subsimple, few- 
 flowered, contracted panicle; sepals lanceolate, acute, 2" long, outer ones 
 a little longer, twice exceeding the 6 stamens; stigma subsessile, equal- 
 ing the ovate ovary, included; capsule ovate, angled, retuse, 3-celled, 
 scarcely exserted, deep brown; seeds oblong-linear, 5"-$" long, striate- 
 reticulated, long tailed, body 3" long. Found only by Hall & Harbour, 
 near Lake Kanch, Colorado, 562. 
 
 JUNCUS PAKBYI, En geln. Rev., 1. c., p. 446. Ca?spitose; stems very 
 thin and wiry, 4'-cV long; leaves sulcate one-half or two-thirds their 
 length, terete above; spathe surpassing the very simple, 1-3-ilowered 
 panicle; sepals 2"-3" long, lanceolate-subulate, the outer ones longer, 
 bristle-pointed, 3 times longer than the 6 stamens; anthers linear, 2-3 
 times longer than the filament; stigmas scarcely equalling the linear- 
 prismatic ovary, attenuated into the style, included; capsule prismatic, 
 very acute, brown, exserted, 3-celled; seed oblong, delicately striate- 
 costate, 1" in length, long tailed, body about 4" in length. Hall & Har- 
 bour, 561. Parry, 3t>0. White House Mountain, at 11,500 feet altitude, 
 Coulter. 
 
 JUNCUS TRIGLUMIS, L. Eng. Rev., 1. c., p. 448. Stem naked; leaves 
 radical, subulate, somewhat terete, channeled at base; flowers capi- 
 tate in a terminal, erect head, about 3; sepals rather obtuse, shorter 
 than the oblong, obtuse, mucronate capsule; filaments many times 
 longer than the anthers. Hall & Harjour, 557. Parry, 395. Alpine. 
 
 JUNCUS CASTANEUS, Sm. Eng., I. c., p. 448. Stein 2-leaved ; radical 
 leaves subulate, the upper part flattened; head terminal, solitary; 
 flowers 2-3; sepals 3" long, lanceolate, acute, shorter than the oblong, 
 obtuse capsule; anthers linear, pointed, half as long as the filaments; 
 stigmas exsert; seeds oblong; body 4"-5" long, with the tailed appen- 
 dages 1.6" or more long. Alpine. Hall & Harbour, 560. Parry, 358. 
 
 JUNCUS VASEYI, Engelm. Ren. 1. c., p. 448. Crespitose; stems l-2 
 high, slender, rigid, striate, covered with brown sheaths at base, sometimes 
 1 eaf- bearing ; leaves elongated, setaceous, terete, striate, sulcate toward 
 the base; spathe equaling or rarely longer than the small, contracted 
 panicle; panicle '-!' long, green; sepals equal, lanceolate, 2" long, outer 
 
SYNOPSIS OF THE FLORA OF COLORADO. 137 
 
 ones subulate-tipped, inner ones broader, mucronate, more than twice 
 longer than the 6 stamens ; anthers equaling the filaments; stigma scarcely 
 equaling the ovate ovary with its short style, included; capsule straw- 
 colored, ovate, retuse, 3-celled 7 equaling or a little longer than the sepals; 
 seeds very slender, body about 3" long, and with the appendages, 5"-7" 
 long. Hall, fide Engelmarm. 
 
 Juxcus TENTHS, Willd. Plains of the Platte, Coulter. Canon City, 
 Brandegee. 
 
 Juxcus BUFOXIUS, L. Hall & Harbour , 559. Upper Arkansas, Porter. 
 On the Platte, near Denver, Dr. Smith. 
 
 Juxcus LONGISTYLIS, Torr. Bot. Bound Surv., p. 223. Eng. Rev., I. c., 
 p. 453. (J. Menziesii, Gr. in PL Parry., p. 34, and PL Hall & Harbour, p. 77.) 
 Stems 2 high, caespitose, stolon Herons, terete, somewhat minutely scab- 
 rous above, leafy; leaves flat, grass-like; heads few, clustered in a con- 
 tracted panicle, l'-3' long or rarely single; 3-8 or 12-flowered, flowers 
 2V '-3" long, the larger ones greenish, with brown stria3, smooth, pediceled ; 
 sepals equal, ovate-lanceolate, very acute or cuspidate, twice longer than 
 the stamens; ovary equaling the stamens and style; stigma exserted; 
 capsule ovate, obtuse, mucronate or rostrate, chestnut-colored, shining; 
 3 celled, equaling or a little longer than the calyx; seeds oblanceolate 
 or obovate, acute at each end, costate-reticulate, .25 // -.27 // long. The 
 most common Juncus in the mountains next to J. Balticus, var. monta- 
 nus. Hall & Harbour, 566. Denver, Dr. Smith ; B. H. Smith. South 
 Park, Canby. Twin Lakes, Porter. Canon City, Brandegee. Meehan. 
 Plains of the Platte, Coulter. 
 
 JUNCUS ALPINUS, Vill., var. INSIGKNIS, Fries. Eng. Rev., 1. c., 458, (J. 
 articulatus, L., var. pelocarpus, Gr.) Hall & Harbour ; 558; Canby. 
 
 JUNCUS NODOSUS, L., var. ME&ACEPHALUS, Torr. Denver, Dr. Smith; 
 B. H. Smith. Caiion City, Brandegee. 
 
 JUNCUS MERTENSIANUS, Bong. Eng. Rev., L c., p. 479. (J. ensifolius, 
 Hook. Gr. in PL Hall & Harbour.) Stem from a thick, creeping root- 
 stock, csespitose, 7 / -14 / high, compressed, weak; leaves aversely com- 
 pressed, usually J"-l" wide, sheath auricled; flowers 15-25, dark brown, 
 pediceled, single, rarely 2-3 in a rather loose head, "-6" broad ; sepals 
 ovate-lanceolate, the outer acuminate-subulate, the inner obtuse and 
 mucronate or rarely acute and equaling the outer ones, exceeding the 
 3-6 stamens, equaling the broadly-obovate, obtuse, mucronate capsule; 
 anthers oblong or oblong-linear, usually mucronate, equaling the fila- 
 ment or shorter; style mostly shorter than the obtuse ovary; seeds 
 oblauceolate, obovate, fusiform, short-tailed at each end, reticulate- 
 costate. Hall & Harbour, 565. Canon City, Brandegee. Ute Pass, Por- 
 ter. Mount Lincoln, at 12,000 feet altitude, White House Mountain, at 
 11,000 feet, and Twin Lakes, Coulter. Wet Mountain Valley, Redfield. 
 
 JUNCUS XIPHIOIDES, E. Mey. Eng. Rev., I. c., p. 481. Stem l-4high, 
 from a thick creeping rhizoma, erect, 2-edged ; leaves compressed and 
 equitant; flowers about 1J" long, pediceled, few or many in few or 
 many heads ; sepals lanceolate, subulate-acuminate, equal or the inner 
 ones more obtuse, shorter, nearly twice longer than the 6 (rarely 3) 
 stamens, usually equaling the angular, acute, mucronate or beaked cap- 
 sule; anthers oblong-linear, almost equaling the filament; ovary ovate, 
 attenuate into the shorter style; stigma subexserted ; seeds ovate-ob- 
 lauceolate, .25 // -.26 // long, pointed at each end, reticulated and trans- 
 versely lined. 
 
 Var. MONTANUS, Engelm. Lower, J-2 high; leaves narrower, 
 
138 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 ^"-IJ" wide, mostly auricled at base ; heads 3-10 flowered, paler, rather 
 numerous and panicled ; flowers a little smaller, the inner petals shorter 
 and mostly acute, the outer ones equaling the loug-inucronate capsule. 
 Hall & Harbour, 564 ; Canby. 
 
 COMMELYNA YiRGiNiCA, L. Purgatory Eiver, Dr. Bell. 
 TRADESCANTIA VIRGHNICA, L. On the plains, Dr. Smith; B. H. 
 Smith. Along the Platte, Coulter; Redfield. 
 
 CYPERACE^. 
 
 CYPERUS TNFLEXUS, Muhl. Near Denver, Dr. Smith. Canon City, 
 Brandegee. South Park, Porter; Redfield. 
 
 CYPERUS SCHWEINITZII, Torr. " Low Mountain s," Hall & Harbour, 
 584. Wet Mountain Valley, Brandegee. Colorado Springs, Porter; Red- 
 field. 
 
 HEMICARPHA SUBSQUARROSA, ISTees. Wet Mountain Valley, Bran- 
 degee. 
 
 ELEOCHARIS OLIVACEA, Torr. Greeley, Greene. 
 
 ELEOCHARIS PALUSTRIS, E. Br. Near Denver, Dr. Smith. 
 
 ELEOCHARIS OOMPRESSA, Sulliv. Pueblo, Greene. 
 
 ELEOCHARIS ACICULARIS, E. Br. Near Denver, along the Platte, Dr. 
 Smith. 
 
 SCIRPUS PAUCIFLORUS, Lightfoot. Hall & Harbour, 582. 
 
 SCIRPUS C^ESPITOSUS, L. Hall & Harbour, 583 ; subalpine. 
 
 SCIRPUS PUNG-ENS, Vahl. Near Denver, Dr. Smith. 
 
 SCIRPUS VALIDUS, Vahl. Near Denver, Dr. Smith. Canon City, 
 Brandegee. 
 
 SCIRPUS MARITIMUS, L. Wet Mountain Valley, Brandegee. 
 
 SCIRPUS SYLVATICUS, L. Canon City, Brandegee. 
 
 SCIRPUS ATROVIRENS, Muhl. Hall. 
 
 ERIOPHORUM POLYSTACHYON, L. Wet Mountain Valley, Brandegee. 
 
 FIMBRISTYLIS LAXA, Vahl. Hall & Harbour, '581. 
 
 ELYNA 1 SPICATA, Schrad. (Kobresia scirpina, Willd.) Csespitose ; 
 stems numerous, 1 high, slender, striate-angled ; leaves filiform ; spike 
 1' long, somewhat clavate. South Park, Hall & Harbour, 598 and 599. 
 
 CAREX NiaRiCANS, Meyer. Spike solitary, oblong, staminate at top ; 
 stigmas 3 or rarely 2 ;' perigynium ovate, stipitate, ventricose, shining, 
 gradually attenuated into a beak, sometimes few-toothed, nerveless, 
 spreading or at length reflexed, rusty-colored, with an entire obliquely- 
 cut mouth, about equaling the dark-brown, oblong, obtuse scale ; the 
 lowest scale rarely subleafy ; achenium unequally 3-sided. Boots creep- 
 ing ; culms 6 / -12 / high. Hall & Harbour, 609. 
 
 CAREX PYRENAICA, Wahl. Spike solitary, densely flowered, stam- 
 inate at top, elliptic, rusty-brown; stigmas 3, rarely 2; perigynium fusi- 
 form or lanceolate, gradually attenuate, long*stipitate, nerveless, coni- 
 
 1 ELYNA, Schrad. Spikelets 2-flowered, covered by a bract. Scale single, its mar- 
 gins connate at base. Hypogoiious setae none. Pistillate flower of the spikelets be- 
 low, style 1, stigmas 3. Nut 3-angled, short-mucronate by the persistent base of the 
 style. Upper flower staminate, short pediceled. Stamens 3. Koch Fl. German. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 139 
 
 pressed, triquetrous, shining, at length horizontally spreading or re- 
 flexed, rusty -colored, the orifice cleft in front with its hyaline margins 
 infolded, longer than the acute-lanceolate or obtuse-oblong rusty-brown 
 scale; lowest scale rarely subleafy; acbenium unequally triquetrous. 
 Caespitose; root fibrous. Hall & Harbour, 608. 
 
 CAREX HALLII, Olney. Hayderfs Rep., 1871, p. 496. (C. Parryana, 
 Boott, in part.) Monoecious or dio3cious; sometimes with two erect 
 spikes, one staminate and one pistillate, or with 1-3 spikes all pistillate ; 
 terminal spike much the largest, lower one often remote and subtended 
 by a leafy bract; scales lanceolate or lance-ovate, brown, with a white 
 midrib, entire, not ciliate, longer and narrower than the obovate, smooth, 
 many-nerved perigynium; stigmas 3. Hall & Harbour, 617. 
 
 CAREX SCIRPOIDEA, MX. Hall & Harbour, 610. South Park, Porter 
 and Canby. 
 
 CAREX POLYTRICHIOIDES, Muhl. Hall & Harbour, 603. 
 
 CAREX AFFINIS, R. Br. u Spike solitary, staininate at top ; stigmas 
 3 ; scales acute, lanceolate, the lower awned. Near. C. polytriclioides, 
 Muhl." Olney in King's Rep., vol. 5, p. 3V2. Vasey, 591. 
 
 C A.REX OBTUSATA, Lilj. Terminal spike solitary, linear, androgynous, 
 staminate above ; stigmas 3 ; scales shorter than the perigynium ; 
 perigynium ovate-elliptical, turgid, shining, with a smooth, " terete, 
 acuminate, bifid beak, white and diaphanous at the apex, leaves linear, 
 flat. Hall & Harbour, 606. 
 
 CAREX BACKII, Boott. Hall& Harbour, 612. 
 
 CAREX FLLIFOLIA, Nutt. Ca3spitose ; spikes simple, androgynous, 
 staminate above, subcylindric, acute ; perigynium subglobose, entire at 
 the orifice; scales retuse; leaves filiformly-involute, shorter than the 
 culm. Xutt. Gen., vol. 2, p. 204. Hall & Harbour, 605. Ute Pass, Porter 
 
 CAREX PAUCIFLORA, Lightfoot. Hall & Harbour, 607. 
 
 CAREX DISTICIHA, Hudson. South Park, Porter. 
 
 CAREX COXJD:;OTA, Boott. Along the Platte, Coulter. 
 
 CAREX MURICATA, L., var. GRACILIS, Boott, in part. Spikes ches- 
 ntit-colored, narrow, ovate, with 4-6 ovate few-flowered spikelets ; leaves 
 lax, long and narrow. Hall & Harbour, 592. Weston's Pass, Coulter. 
 
 CAREX DOUGLASII, Boott. Boot creeping; culm 6 / -12 / high; spike 
 dioecious, with about 12, sometimes more, ovafe spikelets, the upper 
 closely aggregated, the lower occasionally remote and compound; bracts 
 sometimes setaceous, broad at base, sometimes scale-like and mucronate; 
 style exserted, stigmas 2, very long; perigynium elliptic-lanceolate or 
 ovate, tapering to a long serrated bifid beak, shorter than the lanceolate 
 acute scale ; achenium orbicular. Near Long's Peak, Coulter. 
 
 Var. MINOR, Olney. (C. petasata, Dew., in Hay den's Xebraska Plants. 
 Spikes small, not closely aggregated; perigynium and scale small. Hall 
 & Harbour, 600. 
 
 CAREX SICCATA, ~Dew.Hall & Harbour, 593. 
 
 CAREX MARCIDA, Boott. Culm l-2 high, rigid ; leaves broad, linear, 
 erect; spike oblong, pale, composed of numerous small ovate aggregated 
 androgynous spikelets, stamiuate at top, the lower spikelets compound; 
 stigmas 2; perigynium tawny, sub-orbicular, or ovate tapering to a bifid 
 beak, plano-convex, nerved, winged, the upper margins Berratnl, short- 
 stipitate, nearly equal to the acute ovate scale, which is of a pale straw- 
 color with a white membranous margin ; achenium tawny, lenticular, 
 contracted at base. Hall & Harbour , Greene. 
 
140 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 CAREX TENELLA, Schk. Hall & Harbour, 601. 
 
 CAREX CANESCENS, L. Hall & Harbour, 602. 
 
 CAREX DEWEYANA, Schw. Hall & Harbour, 596. 
 
 CAREX GAYANA, Dew. Boott, III., pt. 3, p. 126, t. 411. Spike (some- 
 times wholly pistillate) ovate, capitate, fuscous-ferrugineous; spikelets 
 staminate at the apex or wholly staminate or pistillate, many, closely 
 crowded, lower ones compound ; bracts setaceous shorter than the spike; 
 stigmas 2; perigynia somewhat rounded, with a short conic beak, orifice 
 very small, hyaline, deeply cleft before, scabrous on the margins above, 
 shining, spongy, chestnut-colored; scale ovate, acuminate, cuspidate, 
 brown-ferruginous, with a whitish hyaline apex broader and longer than 
 the perigynium. Hall & Harbour, 595. 
 
 CAREX STELLULATA, L., var. SCIRPOIDES, Carey. Wet Mountain 
 Valley, Brandegee. 
 
 CAREX BONPLANDII, Kunth. Spikes of 8-12 blackish-purple or rusty 
 spikelets, more or less bracted, staminate at base ; stigmas 2 ; perigynium 
 ovate or ovate-lanceolate, gradually tapering to a beak, the orifice entire 
 and deeply cleft in front, wingless, more or less serrate on the margins 
 at the apex, nerved, plano-convex, equaling the ovate subacute scale; 
 acheniuni oblong-ovate, contracted at base, "biconvex and apiculate. 
 
 Var. MINOR, Gluey. Spikelets small, fewer ; bracts scale-like. Hall 
 & Harbour, 591. 
 
 CAREX LEPORINA, L. Fl. Suec. Koot woody-fibrous, spike oblong, 
 tawny-brown, composed of 5-6 (rarely more) nearly round or obovate 
 spikelets, staminate at base, alternately contiguous, sometimes aggre- 
 gated into an elliptical head, the highest club-shaped; bracts sometimes 
 filiform, not equal to the spikelets; stigmas 2; perigynium ovate, gradu- 
 ally tapering to a beak from an ovate base, the orifice obliquely cut, 
 winged, and serrated upon the margins above the middle, nerved upon 
 both sides, tawny, quite equaling the ovate-lanceolate acute scale, 
 which is whitish-hyaline with tawny margins ; "acheniurn oblong, lenticu- 
 lar, stipitate, shining, chestnut-colored, apiculate at the base of the 
 style. Colorado, at 12,000 feet altitude, Vasey, fide Olney. 
 
 CAREX FESTIVA, Dew. Csespitose; spike ovate or nearly round, 
 naked or bracteate, composed of 6-12 nearly round androgynous spike- 
 lets, stamiuate at base, closely aggregated in to ahead; stigmas 2; perigy- 
 nium ovate-elliptical, tapering to a beak, the whitish-hyaline orifice ob- 
 liquely cut anteriorly and finally bideutate, slightly nerved on both 
 sides, winged, serrated on the margins above the middle, rusty-tawny, 
 a little exceeding or about equaling the lanceolate obtuse whitish-hya- 
 line rusty-margined scale ; acheniumoblong-obovate, abruptly apiculate, 
 rusty-colored. Hall & Harbour, 589 and 590. Ute Pass, Porter. White 
 House Mountain and Mount Lincoln, at 12,OUO feet altitude, Coulter. 
 Breckeiiridge, Brandegee. Gray's Peak, Dr. Smith. Pike's Peak, Canby. 
 
 CAREX STENOPHYLLA, Wahl. Csespitose, 4'-6' high, stolouiferous 
 from the base ; spikes androgynous, staminate above, aggregated in an 
 ovate or oblong head ; stigmas 2; perigynium ovate, convex on the back, 
 9-11-ner^ed, serrulate-scabrous on the margin; beak white-membran- 
 aceous at the apex, emarginate on the back; scales acute; culm smooth, 
 somewhat scabrous above. Hall & Harbour, 597. 
 
 CAREX ATHROSTACHYA, Olney. Root fibrous; culm l-2 high, 
 leafy; spike ovate, straw-colored, rusty-tinged, composed of 8-20 
 crowded spikelets, the lowest sometimes forming a remote distinct 
 head; bracts 3-5, leafy, involucre-like, expanded at base into a hyaline 
 
SYNOPSIS OF THE FLORA OF COLORADO. 141 
 
 margin, the lowest much longer than the culm ; stigmas 2 ; perigynium 
 ovate-lanceolate, tapering into along bifid beak, spongy at base, winged, 
 serrate and waved on the margins, slightly nerved, shorter than or 
 nearly equaling the ovate-lanceolate acuminate scale, which is mem- 
 branous with bright rusty-colored margins. Colorado, 587, Vasey. 
 
 CAREX ADUSTA, Boott. Hall & Harbour. 
 
 CAREX STRAMINEA, Schk. Denver, B. H. Smith. Near Colorado 
 Springs, Porter. 
 
 CAREX TENERA, Dew. Cului 15'-30' high, slender, somewhat 5-sided, 
 leafy towards the base; leaves much shorter than the culm ; spikelets 
 3-5 small, somewhat clavate, distant, nodding or erect; perigynia ovate, 
 compressed, beaked, subulate, nerved, ciliate-serrate, longer than the 
 oblong-lanceolate scale. The erect form, No. 14 of Olnetfs Carices Bor.- 
 Am. Hoopes. 
 
 CAREX LIMULA, Fries., (not of Gray's Manual.) Culm 2-2J high, 
 acutely angled ; leaves erect, flat, rough on the margins, the sheathing 
 base-leaves not flbrillose; spikelets erect, 34, the terminal one (or some- 
 times two) staininate, the remainder pistillate, often with staminate 
 flowers at the apex, oblong, cylindrical, the lowest pedunculate; bracts 
 leafy, surpassing the culm, with small blackish auricles; stigmas 2; 
 perigynium oblong, compressed, faintly nerved, exceeding or equaling 
 the black oblong single-nerved scale ; acheniurn obovate, compressed 
 Colorado, at 11,300 feet altitude, Vasey, 582. 
 
 CAREX JAMESII, Torr. Whole plant glaucous ; culm 8'-20' high ; 
 leaves broad, leathery, shorter than the culm, arnplectant at base, the 
 lower spreading and then incurved, with pale sheaths ; spikelets 5-6, 
 the lowest sometimes pedunculate or rarely radical on a long peduncle, 
 the two upper ones staminate, blackish purple, (the stamens brick-col- 
 ored,) the lower one small; pistillate spikelets 3, sometimes 4, oblong, 
 cylindrical, densely flowered, the uppermost sometimes with a few male 
 flowers; bracts leafy, not usually sheathing, the lowest some times short- 
 vaginate and exceeding the culm ; stigmas 2 ; perigynium obovate, 
 strongly nerved, glaucous or light-brown, the beak bidentate or emar- 
 ginate with the mouth slightly ciliated or toothed, longer than the pur- 
 plish-black scale, which has a greenish-white midrib ; achenium orbic- 
 ular. Monument Park, Porter. Weston's Pass and Twin Lakes, Coulter. 
 
 Var. Gluey. (C. Nebraskensis, Dew.) Koot stoloniferous ; culm 16'- 
 24' high ; leaves broad, leathery, erect, nearly equaling the culm ; spikes 
 rusty-colored ; perigyuia spreading, shorter the acute, lanceolate, dark- 
 rusty scales. Greene. Oak Creek, Brandeyee. 
 
 CAREX RIGIDA, Good. Hall d* Harbour, 588 in part. 
 
 CAREX BUXBAUMII, Wahl. Hall & Harbour, 619. 
 
 CAREX ATRATA, L. Hall & Harbour, 588 in part. South Park, Canby. 
 Mount La Plata, at 12,000 feet altitude, and Mount Lincoln, at the same 
 elevation, Coulter. 
 
 Yar. OYATA, Boott. Spikes 3, oblong (the lower pedunculate with few 
 staminate flowers) dark purple ; perigynia glaucous-green. Hall & Har- 
 bour, 5^5. Summit of Pike's Peak, Canby. 
 
 Var. NIGRA, Boott. Spikes subrotund, crowded or aggregated or the 
 lowest distinct, sessile ; perigynia oval or elliptical, cylindrically-rostrate, 
 toothed on the margins of the beak, especially above ; stigmas 2-3. 
 Hall & Harbour, 577. Gray's Peak, J)r. Smith. Canby; Brandegee ; 
 Meehan. White House Mountain, at 11,000 feet altitude, Coulter. 
 
142 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 CAREX ALPINA, Vahl. Rail & Harbour, 618. Chicago Lakes, at 12,000 
 feet altitude, Coulter. 
 
 CAREX AUREA, Nutt. Mouut La Plata, at 11, 000 feet altitude, Coulter. 
 
 Var. ANDROGKYNA, Olney. Culms short, more rigid; leaves erect, 
 broader ; upper spikes more closely aggregated and deuser flowered, the 
 upper spike generally androgynous, having more or less fertile flowers 
 at the top. Colorado, Dudley's Ranch, E. L. Greene. 
 
 CAREX GEYERI, Boott. (C. pliyllostachya, Dew., in Bot. Mex. Bound., 
 not of Meyer.) Spike simple, androgynous, the top cylindric and stam- 
 inate, pale, at length bright-rusty, with 1-5-pistillate flowers at the base, 
 remote and erect with the rachis ; stigmas 3 ; perigynium oval-trigon- 
 ous, produced at base, short-beaked, entire at the oriflce, whitish-hya- 
 line, membranous, smooth, with two prominent nerves, shorter than the 
 broad-ovate, obtuse or acute sheathing cuspidate or foliaceous scale, which 
 is whitish with a green nerve. Hall & Harbour, 611. 
 
 CAREX TORREYI, Tuckerinan. Clear Creek, near Golden City, E. L. 
 Greene. 
 
 CAREX Eossn, Boott. Spikelets 4-5, pale, few-flowered, the terminal 
 one stamiuate, the rest pistillate, each of 3-6 alternate and distinct flow- 
 ers, the upper 3 spikes approximate, the lower remote, exsertly but un- 
 equally long-pedunculate; and upper bract surpassing the culm, the 
 lower sheathed, and all but the lower short-peduueled ; stigmas 3; peri- 
 gynium oval, stipitate, long beaked, bifid, pubescent, nerveless, equaling 
 the ovate-lanceolate acute or cuspidate scale ; acheniuin globose- trian- 
 gular, obtuse. Hall & Harbour, 020. 
 
 CAREX OAPILLARIS, L. Hall & Harbour, 613. 
 
 CAREX PENNSYLVANIA, Lain. Ute Pass, 1872, Porter. 
 
 CAREX LANUGINOSA, MX. South Park, Canby. Ute Pass, Porter. 
 Caiion City, Brandegee. Meehan. 
 
 CAREX TJTRICULATA, Boott. Hall & Harbour, 615; B. H. Smith; 
 Brandegee. 
 
 Var. MINOR, Boott. " Swamps on low mountains," Canby. 
 
 CAREX LONGIROSTRIS, Torr., var. MINOR, Boott. Culm short ; spike 
 shortened; beak shorter. Hall & Harbour, 614. 
 
 ALOPEOURUS ALPINTJS, Sm. English Fl. 1. p. 81. Culm erect, smooth, 
 6'-l high ; palet about equaling the rather acute glumes ; awn exserted 
 more than half its length, slightly bent but not twisted; glumes 3-ribbed, 
 covered on the back with long, dense, white hairs; upper leaf much 
 shorter than its inflated sheath. Hall & Harbour, 683. Gray's Peak, 
 Dr. Smith. 
 
 ALOPECURUS ARISTULATUS, MX. Hall & Harbour, 682. Monument 
 Park, Coulter. Platte Kiver, near Denver, Dr. Smith. Canon City, 
 Brandegee. 
 
 PHLETJM ALPINUM, L. Gray's Peak, Dr. Smith; Meehan. Twin Lakes, 
 Porter. Saugre de Cristo Pass, Brandegee. Sierra Madre Kange, at 
 11,000 feet altitude, Weston's Pass and Twin Lakes, Coulter. 
 
 VILFA CRYPTANDRA, Torr. fSporobolus cryptandrus, Gray J On the 
 plains near Denver, Dr. Smith. Colorado Springs, Porter. Canon City, 
 Brandegee. Hall & Harbour, 648. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 143 
 
 VILFA AIROLDES, Trin. (Sporobolus, Torr.) Like the last, but the 
 panicle at length much exserted, very open and widely spreading; 
 flowers all on distinct pedicels; sheaths naked at the throat or somewhat 
 bearded; leaves mostly erect and involute. Canon City, Brandegee. 
 Hall & Harbour, 647. 
 
 VILFA ASPERIFOLIA, Nees & Meyen. Culms branching at base from 
 running root-stocks, decumbent and often rooting, 6'-15' long, glabrous; 
 the smooth, naked sheaths equaling or exceeding the internodes ; leaves 
 flat, rough on the margins, l'-3' long, V broad, acuminate, tapering up- 
 ward from a broad base, erect ; branches of the loose, spreading panicle 
 capillary, solitary, axils naked; spikelets less than V long, often 2-flow- 
 ered; glumes slightly unequal, hispid on the back, acute, one-third 
 shorter than the nearly equal palets ; lower palet submucronate, the upper 
 obtuse. Canon City, Brandegee. Hall & Harbour, 641; Redfield. 
 
 VILFA RAMULOSA, H. B. K. Steud. Gram., 158. Root annual, fibrous; 
 culms very slender, branching from the base, 3'-10' high; sheaths 
 usually longer than the iuternodes, glabrous or slightly hairy ; leaves 
 flat or" con volute, l'-2' long, J"-l" wide, roughish; panicle elongated and 
 rather narrow, often sheathed at base; brauchlets scattered ; spikelets 
 scarcely %" long, obtusish, on spreading, finely capillary pedicels ; glumes 
 nearly "equal ; palets obtuse, nearly twice longer. Divide between Den- 
 ver and Colorado Springs, Porter. Hall & Harbour, 643. 
 
 VILFA CUSPLDATA, Torr. Hall & Harbour, 661. 
 
 VILFA DEPAUPERATA, Torr. , Root perennial, creeping: culms ascend- 
 ing, appressed, branched, slender, often geniculate, glabrous, striate, 
 rather rigid, ^-2long ; leaves l'-3' long, narrow and usually convolute, 
 recurved or spreading; panicle, very slender, and contracted, l'-3' long, 
 compound or often nearly simple ; spikelets small ; glumes unequal, ovate, 
 obtuse or acutish, membranous, the length of the acute lower palet. 
 Like the former, but differs in its short obtuse glumes, smaller flowers, 
 narrower involute leaves and more slender habit. Hall & Harbour, 660. 
 South Park, Canby. Wet Mountain Valley, Brandegee. Divide between 
 Denver and Colorado Springs, Porter. 
 
 VILFA TRICHOLEPIS, Torr. Pacific R. E. Rep., vol. 4, p. 155. Culms 
 erect, simple, terete, 9'-lS' high, tufted; nodes distant; sheaths glabrous ; 
 ligule truncate; leaves V 1 broad, glabrous; branches of the oblong, rather 
 dense panicle alternate", naked in the axils; branchlets flexuose ; pedicels 
 longer than the spikelets ; glumes nearly equal, acutish, J shorter than the 
 nearly equal pilose palets ; lower palet 3-uerved. Hall & Harbour, 631. 
 Pike's Peak, Canby. South Park, Porter. 
 
 AGROSTIS SCABRA, Willd. Mt. Elbert, at 10,000 feet altitude, and 
 Sierra Madre Range, Coulter. Twin Lakes, Porter. Canon City, Bran- 
 degee. 
 
 AGROSTIS EXARATA, Trin. Steud. Gram., 165. Root biennial, fibrous ; 
 culm simple, erect, l-2 high; ligules obtuse, l"-2" long; leaves flat, 
 linear, (l"-3" wide, 2 / -4'long,) the radical ones narrower, somewhat sca- 
 brous; panicle usually contracted and dense, 2'-4' long, the rays 3-5 or 
 more at each axil, seini-verticillate, flowering from the base, erect ; glumes 
 acute or sub-acuminate, scabrous on the back, slightly unequal, l"-2" 
 long; lower palet usually nearly a half shorter, erose- truncate, very 
 rarely awued above the middle, glabrous or a little hairy at base, the 
 upper one a little smaller than the ovary. Colorado, Vasey. 
 
 AGROSTIS CAXINA, L. Hall tl* Harbour, 671. 
 
 AGROSTIS VULGARIS, With. Canon City, Brandegee. Hoopes. 
 
144 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 MuHLENBERaiA PUNGENS, Thurber, Proc. Acad. Phil, March, 1863, p. 
 78, Note. Culm from a creeping root-stock, l-lj high; leaves rigid, 
 COD volute, pungent, spreading, I'-l^' long, less than I" wide; ligule 
 short, ciliate; panicle 3'-4' long; branches solitary, scattered, naked at 
 base, fasciculately branching; pedicels capillary, minutely scabrous, 
 many times longer than the spikelets, awn 2J" long; glumes almost 
 equal or nearly equal, acuminate or bristly-apiculate, shorter than 
 the flower; palets naked, furnished with a minute rudiment; lower 
 palet scabrous, acute, produced into a long, rough awn, (J'-l',) upper 
 palet scarcely shorter; nerves excurrent, two-bristled; stamens 3. Hall 
 & Harbour, 632. 
 
 MUHLENBERGIA GRACILLIMA, Torr. Bot. Whippl., Pacif. R. R. Rep. 
 4, p. 155. Csespitose,' glabrous; culm simple, 6 / -12 / high; leaves very nar- 
 row, involute, short, I'-IJ', mostly in radical tufts; ligule elongated, 
 cleft; panicle 5' 6' long, pyramidal, capillary; branches sub-solitary, 
 widely spreading; pedicels nearly twice longer than the spikelet; spike- 
 lets lanceolate, mostly purplish,- 1" long; glumes acute, lanceolate, 
 scarcely twice shorter than the palets; lower palet glabrous, 3-uerved, 
 minutely bind, with a straight awn of equal length; callus naked. Oii 
 the plains. Hall & Harbour, 642. Colorado Springs, Porter. Canon 
 City, Brandegee. 
 
 MUHLENBERGIA GRACILIS, Triu. Steud. Glum., 179. Boot fibrous ; 
 culm erect, slender, branching from the base, 1 1J high, minutely 
 scabrous, as well as the sheaths ; node smooth ; leaves erect, narrowly 
 linear, l / -4 / long, plane or convolute, rigid, retrorsely scabrous; panicle 
 contracted, S'-W long; branches solitary, appressed ; pedicels very short 
 or equaling the spikelet; lower glume 1 nerved, acute, upper 1-nerved, 
 erose-obtuse or acute, sometimes bearing an awn, twice longer than the 
 palets or a little shorter ; lower palet wholly pilose, or the middle of the 
 back and margins, bearing an awn 4 // -9 // in length, upper one on the 
 nerves short-pilose half-way up. Hall & Harbour, 064; Canby ; Bran- 
 degee ; Meehan. Ute Pass and South Park, Porter. 
 
 MUHLENBERGIA TEXANA, Thurb. in Gram. Mex. Bound, ined. "Culms 
 geuiculately decumbent, branching; panicle ovoid, few flowered, ravs 
 solitary or in pairs, naked below, pedicels equaling or twice as long as 
 the spikelets; glumes shorter than the floret, cariuately 1-uerved, set- 
 aceously mucrouate; palets pilose, the lower terminated by an awn 
 thrice its length and equaled or exceeded by the upper one; callus con- 
 spicuous, glabrous. This species, which seems to be very common in 
 Texas and Arizona, is quite distinct in habit from others of the genus. 
 The slender and branching culras are from one to two feet long, often 
 decumbent for their whole length and geniculate at the nodes; sheaths 
 usually shorter than the internodes, mostly smooth; ligule y long, 
 lacerate; leaves. (except in specimens from the arid table-lands of Ari- 
 zona) plane, I'-l^' long, 3" wide at base, setaceously acuminate at apex, 
 and scabrous, especially above; panicle about 3' long and 2' broad, green 
 or dark-red, included at base except when old, its branches naked below 
 for or J their length and 1-3 flowered; spikelets \\" long; glumes 
 narrowly lanceolate, upper slightly longer. Texas, Bigelow ; Parry; 
 Wright, 734. Arizona, Hayes ; Goues ; Palmer." Fremont County, Col- 
 orado, Brandegee; Greene. 
 
 MUHLENBERGIA SYLVATICA, T. & G., var. (?) SETIGLUMIS, Watson, 
 Kimfs Rep. Culms 1 high, nearly erect; panicle contracted nearly as in 
 M. glomerata ; the branches solitary and densely flowered, mostly to the 
 base ; glumes attenuate into a scabrous bristle, 2 J"-3" long ; the palet, 
 
SYNOPSIS OF THE FLORA OF COLORADO. 143 
 
 with its awn, about twice longer. Denver, Dr. Smith. Canon City, 
 Brandegee. 
 
 YASEYA 1 COMATA, Thurber. Proc. Acad. Phil, March, 1863, p. 79. 
 Culms l-2 high, erect, slender, from a creeping rhizoma, retrorsely pu- 
 bescent at the nodes; sheaths scabrous, as long as the iuternodes; ligule 
 short, fringed; leaves 3'-4'long, dull green, rough on both sides; panicle 
 lead-colored, '6'-^' long; branches solitary, appressed, densely flowered; 
 spikelets short-pediceled, compressed, lj" long, pubescent; glumes nar- 
 row, very acute, serrulate on the keel, lower one a little longer; awn 
 rough and flexuose, purplish, 3"-4" long. Hall & Harbour. 
 
 CALAMAGROSTIS CANADENSIS, Beauv. Canon City, Brandegee. Twin 
 Lakes and Sierra Madre Range, Coulter. 
 
 CALA3IAGROSTIS STRICTA, Trin. Canon City, Brandegee. Divide 
 between Denver and Colorado Springs, Porter. 
 
 CALAMAGROSTIS SYLVATICA, DC. Gray, Proc. Am. Acad. 6, p. 0. 
 Root creeping; culm simple, erect, rather rigid, glabrous or scabrous be- 
 low the panicle; leaves mostly revolute, scabrous; panicle contracted, 
 2'-4 / long, the brauchlets erect ; glumes ovate-lanceolate, sharply acu- 
 minate, about 3" long; lower palet scabrous, rather rigid, awnednear 
 the base, hairs about one-fourth as long as the palet; rudiment elon- 
 gated, plumose; awn bent and twisted, exceeding the glum es. Denver, 
 Dr. Smith; B. H. Smith ; Canby. Caiioii City, Brandegee. Along the 
 Platte, Coulter. 
 
 CALAMAGROSTIS LONGIFOLIA, Hook. Xear Denver, Dr. Smith. Col- 
 orado Springs, Porter. Sierra Mojado, Brandegee. 
 
 ORYZOPSIS MICRAXTHA, Thurber. ( Urach ne micrantlia, Trin. ) u Leaves 
 linear-setaceous, convolute; branches of the panicle in pairs, many-flow- 
 ered; spikelets shining, florets smooth, a little shorter than the linear, 
 acutish glumes, awn about thrice longer than the glumes ; cells of the 
 anthers naked at the apex.-' Steud. Glum., 122. Hall & Harbour, 
 63 4. Chiann Canon and Glen Eyrie, Porter. 
 
 ERIOCOMA 2 CUSPIDATA, Nutt. Perennial ; culms l-2 high, simple, 
 rather rigid and somewhat scabrous; sheaths scabrous, equaling the 
 internodes, the upper ones often dilated ; leaves narrow, convolute, 
 elongated, (2 / -18 / ;) panicle frequently included at base, dichotomously 
 branched, the spikelets solitary upon capillary peduncles; glumes 2 // -4' / 
 long, usually more or less purple, pubescent; outer palet deep brown, 
 \y long, the nearly straight triquetrous awn \^"2" long. Hall & Har- 
 bour, 633. Canon City, Brandegee. On the plains and in the mountains, 
 Porter. Platte River, near Denver, Dr. Smith. 
 
 STIPA MONGOLICA, Turcz. (Ptilayrostis Mongollca, Griseb. in Ledeb. FJ. 
 Ross.} Slender, 1 high, with filiform leaves and a loose few-flowered 
 panicle; the membranous glumes obtuse, about 2" long, sub-equal, pur- 
 
 'VASEYA, Thurber. Spikelets 1-nowered, membranous-herbaceous, in a narrow 
 crowded panicle. Glumes 1-nerved, equaling or exceeding the flowers,^arly equal, the 
 lower usually a little longer. Callus oblique, densely bearded with silky Murs equaling the 
 flower. Palets equal, the lower 3-nerved, attenuate into a long awn, the upper aoiz- 
 miuate. Stamens 3. Ovary stipitate. Stigmas plumose with long simple hairs. Per- 
 ennial from running root-stocks. 
 
 -ERIOCOMA, Nutt. Spikelets 1-flowered, in a loose, open panicle. Glumes 
 nearly equal, strongly 3-nerved, subventrieose at bast-, attenuate-rostrate above, some- 
 what exceeding the pei-sistent flower. Callus short, thick. Palets rigid, coriaceous, 
 the outer oval, densely covered throughout with long, white, silky hairs, and terminated 
 with a short, stout deciduous awn, the upper included, narrower, scarcely sh>n r. 
 Stamens 2-3; anthers oblong-linear, bearded at the apex. Scales c<;nspicuous, ix.nly 
 equaling tlie oblong seed. 
 10 FC 
 
146 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 plish, and the scarcely shorter bairy palet ending in a bent plumose awn, 
 6" in length. Hall & Harbour, 648. 
 
 STIPA SPARTEA, Trin. -Colorado Springs, Porter. ' South Park, Canby, 
 Meehan. Wet Mountain Valley, Redfield. 
 
 STIPA vraroULA, Trin,, Steud. Gram., 129, Culms stout, strict, and 
 with the narrow sheaths scabroiis or sometimes glabrate, 1 3j high, 
 the nodes naked; leaves elongated, mostly narrow and involute, l"-3" 
 broad, scabrous; panicle narrow, contracted, 3'-10' long, the erect 
 branches 2-3 together, flowering from the base or some of them naked 
 below; glumes nearly equal, 3"-4J" long, narrowly acuminate; lower 
 palet 2J"-3 // long, short-pilose at the obtusish base, appressed-pubeseent 
 above, and with a pilose crown at the apex ; awn about V long, twisted 
 and geniculate, minutely scabrous. Hall & Harbour, 626. Kear Denver^ 
 Dr. Smith. Canon City, Brandegee. Median. Colorado Springs, Porter! 
 
 ARISTIDA PURPUREA, Nutt. Steud. Gram., 134. Perennial; culms 
 C'-IS' high, simple, erect, slender, mostly glabi'ous; sheaths narrow, 
 scabrous, exceeding the intern odes, pilose at the throat; leaves very 
 narrow, convolute, |'-10' long; panicle slender, erect or flaccid, 3'-6' long, 
 loosely few-flowered; glumes purplish, the upper 6"-9" long, about twice 
 exceeding the lower, and longer than the flower, bind and shortly awned ; 
 flower densely short-pilose at the pointed base, scabrous above, 6" long, 
 the awns equal or nearly so, separate to the base, not jointed, l"-2" 
 long, scabrous. Hall & Harbour, 652. Near Denver, Dr. Smith. Caiion 
 City, Brandegee. Colorado Springs and South Park, Porter. 
 
 AKISTIDA OLIGANTHA, MX. Canon City, Brandegee. 
 
 SPARTINA CYNOSUROIDES, Willd. Near Denver, Dr. Smith. 
 
 SPARTINA ORACILIS, Trin., Steud. Gram. ,214. Culms l-3 high, ex- 
 ceeding the spreading distichous leaves, which are very rough upon '.the 
 margins, mostly convolute, the upper ones distant and shorter; ligules- 
 ciliate ; spikes 4-10, oblong, mostly sessile, appressed to the nearly smooth 
 rachis ; glumes very unequal, the lower acuminate, the upper acute and 
 equaling the obtusish palets, 4" long, the glumes and lower palet cili- 
 ate, hispid upon the keel. Hall & Harbour, 639. CaQon City, Brandegee. 
 South Park, Porter. In saline soils. 
 
 PLEURAPBis 1 JAMESII, Torr. Steud. Gram., 218. Roots perennial, 
 creeping; culms 1-1J high, branching at base, erect, slender, slightly 
 scabrous, hairy at the nodes, with the leaves glaucous; sheaths close, 
 scabrous, hairy at the throat, the ligule laciniate; leaves I'-G' long, 
 mostly convolute, rigid, scabrous, the upper ones short and pungent ; 
 spike 2 / -3 / long, erect, the internodes of the flexuous rachis shorter than 
 the erect (4" long) spikelets ; flowers short-pediceled or nearly sessile 
 in the glumes; glumes of the perfect spikelet ciliate, earinate, cleft nearly 
 to the middle, the lobes 1-nerved on the inner margin, with 3-5 interme- 
 diate bristles, the central one longer ; palets exceeding the glumes, the 
 lower 3-nerved, bifid at the apex, short-cuspidate, the upper a little 
 shorter, 2-nerved and slightly bifid ; scales linear, entire j glumes of the 
 sterile spikelets equaling the palets. the lower ciliate, slightly 2-cleft, 
 
 1 PLEITBAPHIS, Torr. Flowers spicate j the spikelets sessile by threes at each joint of 
 the rachis, surrounded at base by an involucre of soft, spreading hairs; the lateral ones 
 ataniiiiatc, the central perfect. Glumes of the perfect spikeleta '2, 1-flowered, equal, 
 narro w-cnneat* r deeply 2-eieft, 3-5 bristled ; palets membranous, the lower short-awned 
 at the apex. Glumes of the sterile spikelets 2, 2-flowered r lanceolate, inequilateral, the 
 lower 1-awned upon the back ; p alerts membranous, awnless. Stamens 3, with very 
 short filaments. Germ ovate; styles 2, distinct, the elongated stigmas simply plu- 
 mose. 
 
SYNOPSIS OF THE FLOEA OF COLORADO. 147 
 
 awned above the middle, the outer side 2-nerved, the inner margin 
 much narrower and infolded, the upper glume emarjrinate or erose, cus- 
 pidate with a strong mid-nerve, the broader outer side also 2-3-uerved ; 
 pa-lets emarglnate or irregularly toothed at the apex, the lower 3-nerved, 
 the upper 2 nerved. Greene. 
 
 BOUTELOUA OLiGrOSTACHYA, Torr. Hall & Harbour, 636. Near Den- 
 ver, Dr. Smith. B. H. Smith. Colorado Springs, Porter. Canon City, 
 Brandegee. Common on the plains. 
 
 BOUTELOUA HIRSUTA, Lag. South Park, Canby. 
 
 BOUTELOUA CURTIPEXDULA, Gray. Hall & Harbour. Colorado 
 Springs, Porter. 
 
 BrcHLOE 1 DACTYLOIDES, Engelm. Trans. Saint Louis. Acacl., vol. 
 1, p. 432, pi. 12and 14. Densely tufted, spreading by stolons, forming- 
 broad mats; culms 3'-6' long; flowering stems of the male plant 4'-6' 
 long, glabrous or slightly hairy; leaves 2'-4' long, J"-!^' wide, nearly 
 smooth ; sheaths striate, glabrous, strongly bearded at the throat: spikes 
 3"-6" long; spikelets alternate in 2 rows, uppermost abortive, bristle- 
 form, 2 // -3 // long; lower glume ovate lanceolate, with a scarious margin ; 
 upper glume twice longer, ovate ; lower palet convex, 3-nerved, upper 
 one 2-nerved, two minute scales at the margin and inside of the lower 
 palet ; stamens 3. Stems of the female plant much shorter than the 
 leaves, lt^-2' high; heads 3"-3" long; glumes becoming ligneous; 
 spikes or heads usually 2; at maturity becoming thick, extremely hard, 
 including the loose grain. The celebrated "buffalo-grass," known to 
 hunters and trappers as one of the most nutritious grasses, on which for 
 a part of the year subsist and fatten the immense herds of buffalo and 
 the cattle of the hunter and emigrant. It extends on the elevated plains 
 from the British Possessions southward and westward into Mexico and 
 Xew Mexico. ETuttall, who had only the male plant, referred it to the 
 genus Scsleria, and described it as 8. dactyloides (Gen. 1, p. 64.) Steudel 
 founded another genus on the female plant, Antephora axilliflora, (Glum. 
 1, p. 111.) The true relationship between them was first detected by Dr. 
 Engelmann, and clearly set forth by him in his masterly article iii the 
 Trans. Saint Louis Acacl. Plains around Denver, Dr. Smith. Hall & 
 Harbour, 637. 
 
 SQUARROSA, Torr. Bot. Whippl, Pacif. E. E. Eep. 4, p. 158. 
 
 1 BUCHLOE, Eugelui. Flowers dioecious, heteromorphous. Male plant. Spikes 1-sided 
 2-ranked ; spikelets 2-3-floweivd. Glumes 2, 1 -nerved, lower much smaller. Palets 2, of 
 equal length, longer than the glumes; lower one 3-nerved, mucronate; upper one 
 2-nerved. Squamuhein pairs, truncate, emarginate. Stamens 3; anthers linear. Rudi- 
 ment of an ovary none. Female plant. Spikes 1-3, short, capitate, oblique in the in- 
 volucrate sheaths of the upper leaves ; spikelets 1-flowered, crowded, upper floret abor- 
 tive, withering. Glumes 2 ; lower glume of the lowest spikelets 1-3 nerved, lanceolate - 
 subulate, with an herbaceous tip, or 2-3-cleft, lower side athinte to the back of the 
 upper glume : lower glumes of the other spikelets (internal as to the head) free, much 
 smaller, membranaceous, ovate-lanceolate, acute, 1-nerved; upper glumes (external) 
 connate at the base with the thickened rachis, at length like a hard, woody involucre, 
 ovate, nerveless,, pale, trifid at the herbaceous, nerved tip. Lower palet (internal as to 
 the head) shorter. 3-nerved, herbaceous, tricuspidate; upper palet shorter, 2-nerved. 
 Squamuhe as in the male flowers. Rudiments of the stamens 3, minute. Ovary lenti- 
 cular, glabrous, very short-stipitate ; stigmas much longer than the 2 erect terminal 
 styles, plumose with simple hairs, exsert from the apex of the flower. Caryopsis free, 
 included in a horny, at length deciduous head, sublenticular, flat on the outside, 
 (toward the lower palet.) convex on the inner side. 
 
 -MrxnoA, Torr. Spike capitate, leafy; spikelets 3, 2-6-fl owered ; flowers sessile: 
 2-ranked : Terminal one abortive. Glumes 2, subopposite, much shorter than the flow- 
 ers, mucronate. Palea 2, herbaceous, rigid, in the lowest spikelet naked, mucronate or 
 short-awned, not keeled, equilateral, in the uppermost spikelet bearded toward the 
 base ; caryopsis very smooth, covered by the upper palea. 
 
148 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 Animal, creeping, very much branched from the base; branches fascicu- 
 late, 3'-8' long; leaves I'-^'loug, flat, l"-2" wide, somewhat pungent, 
 scabrous on the margin ; spikelets mostly 3, closely approximated ; 3-4- 
 flowered; glumes almost unilateral, linear-lanceolate, carinate; palets 
 2-3 times longer than the glumes, lanceolate, acute, upper one bicari- 
 nate, rather obtuse. On the plains, Hall & Harbour, (538. Colorado 
 Springs, Porter. Denver, Dr. /Smith. Gallon City, Brandegee. 
 
 LEPTOCHLOA FASCICULARIS, Gr. Hall & Harbour, 644. 
 
 TRICUSPIS PURPUREA, Nutt. Hall & Harbour, 645. 
 
 TRICUSPIS MUTICA, Torr. Bot. Whippl. p. 156. Crespitose, glabrous. 
 1 high; culm rigid, terete, erect, very simple; leaves convolute-filiform, 
 3'-6' long; panicle terminal, much exserted, racemose, 3'-6' long, the 
 short, appressed branches bearing 3-5 spikelets; spikelets rather terete, 
 5-S-flowered , glumes unequal, 1-nerved, rather acute, scarcely half the 
 length of the spikelets; lower palet awuless, entire or bilid, long ciliate 
 on the margin and back; upper palet shorter than the lower, notched 
 at the apex, plumose on the margin ; style short ; stigmas plumose, pur- 
 ple. Canon City, Greene, 1873. 
 
 TRICUSPIS ACUMINATA, Mnriro, in Herb. Thurb. " Culms caespitose, 
 simple, usually with but a single node, which bears a very short leaf; 
 panicle dense, ovoid ; spikelets subsessile, 8-12 flowered, the rachis 
 easily disarticulating; glumes acuminate, 1-nerved, the upper subarist- 
 ate and with the palets carinately compressed ; lower palet 3" long, 
 acuminate, membranaceous, 3 nerved, marginal nerves terminating at 
 the scarcely bifid apex, the central one prolonged into a seta J the 
 length of the palet, which is densely silky below and somewhat pilose 
 above the marginal nerves, with a conspicuously silky tuft near the 
 base; upper palet ovate, obtuse, J shorter than the lower; stamens 3; 
 ovary stipitate ; styles plumose with simple hairs; sqnamulae 2, fleshy, 
 truncate ; seed fusiform, smooth, shining and translucent, except the 
 scutellum, which is nearly half its length. This exceedingly neat and 
 interesting species is apparently a perennial, forming tufts with culms 
 6' to 1 or more high, somewhat rigid, compressed, and often geniculate 
 at base; nodes red; sheaths much shorter than the in tern odea, with a 
 pilose tuft at the throat; ligule minute, lacerate ; the pale-green leaves 
 plane or canaliculate, rigid, distinctly 3-nerved, pubescent, scabrous on 
 the margins, obtuse and mucronulate at apex; radical leaves 2' and 
 those of tlie culm j' long; panicle l'-2' long with a few erect 1-3 
 flowered branches, whitish or with a very slight purple tinge ; the 
 broad palets (at least when dry) nearly colorless, with green nerves and 
 beautifully silky hairs upon the lower portion and marginal nerves ; 
 upper palet bicarinate, ciliate on the nerves and conformed to the lower 
 one. The plant has something of the habit of Trieuxpis ( Uralepis) 
 avenacea, Kth., and has been mixed with it by collectors, but is readily 
 distinguished by its larger and many-flowered spikelets and its carinate, 
 acuminate, and mostly entire lower palet. Texas, Linahcimer, 738; 
 Bigcloic ; Wright, 781, 782, (in part) and 2058. Xew Mexico, Fendler, 
 915." Caiion City, Colorado, Brandegee ; Greene, 1873. 
 
 GRAPHEPHORUM(?) FLEXUOSUM, Thurber Proc. Acad. Phil., March, 
 1863, p. 18, Note. Culm 3 high, smooth ; sheath surpassing the inter- 
 nodes, furnished with a ring of hairs instead of a ligule ; leaves llong, 
 "2." broad, setaceous-acuminate; panicle loosely-flowered; branches scat- 
 tered, the lowest distant, about 4' long, naked below, branchlets few, 
 capillary; spikelets ovate, compressed, 3-6-flowered, 2,} // -3 // long, twice 
 or four times shorter than the pedicels; glumes membranaceous, 1-nerved, 
 
SYNOPSIS OF THE FLORA OF COLORADO. 149 
 
 acute, half shorter than the spikelet ; lower palet carinate, 3-nerved, 
 (with prominent lateral nerves,) scabrous-pubescent, erose denticulate 
 at the apex, niucrouate, villous at base, upper one about as long-, con- 
 spicuously 2-keelecl, 2-toothed ; stamens 3 ; ovary stipitate ; squainulsB 2, 
 obliquely truncate ; caryopsis free. Hall & Harbour, 635. 
 
 KCELERIA CRISTATA, Pers. Kear Denver, B. H. Smith. Colorado 
 Springs, Porter. Monument Park, Twin Lakes, and on the Upper Arkan- 
 sas, Coulter. Hall & Harbour, 650. 
 
 MELICA BULBOSA, Geyer. ( M. powoides, Torr. Bot. Wliippl, not Xutt.) 
 Gray in Proo. Am. Acad.^ vol. 8, p. 409. Culins erect, slender, 1J 2 high 
 often enlarged and bulb-like at base, slightly scabrous above, nodes, 
 naked ; sheaths longer than the internodes and scabrous, the ligules 
 usually long and lacerated; leaves scabrous, mostly flat and elongated, 
 l"-2" wide ; panicle narrow and often interrupted, the branches unequal 
 and erect, subscabrous, rarely spreading ; spiklets erect and scarcely 
 secund, 3-5-flowered, usually more or less purple ; glumes obtuse or 
 acutish, glabrous, 5-uerved ; lower palet about 4" long; 7-nerved, pu- 
 berulent on the back, membranous-margined, rather obtuse, upper palet 
 pubescent on the nerves erose-truncate; grain 2" long. 
 
 Var. Culms slender, little enlarged at base, 1 high ; leaves narrow 
 and revolute ; panicle narrow ; spikelets 10-15 ; glumes longer, more 
 acute; lower palet obscurely 5-nerved, upper palet not pubescent on 
 tho margins. Ute Pass and Twin Lakes, Coulter. 
 
 MELICA MUTIOA, Walt., Gr., var. PARVIFLORA, Porter. Culms 2 
 high; panicle narrow,! long; flowers 3-4, smaller ; leaves narrower ; 
 spikelet much exceeding the larger glume ; pedicels below the flowers 
 more hairy. Glen Eyrie, Porter. Meehan. Sierra Madre Range, Coulter. 
 
 GLYCERIA PAUCIFLQRA, Presl. Steucl. Gram., 285. Roots creeping ; 
 culms 1-3J high, smooth, nodes naked; sheaths and the broad linear 
 leaves (3 / -12 / long) scabrous; panicle loosely spreading, the slender 
 iiexuous branches in pairs, divided, scabrous ; spikelets narrow-oblong, 
 2" long, 4-6-flowered, often purplish; glumes rounded, unequal, the 
 lower obscurely 3-nerved, scarious on the margin, lower palet truncate- 
 obtuse, the apex minutely serrulate and distinctly scarious, 5-uerved, the 
 upper one emarginate. Sail & Harbour, 662. Canon City, Brandegec. 
 
 GLYCERIA AQUATICA, Sm.Hall it: Harbour, 629. Monument Park, 
 Coulter. 
 
 GLYCERIA AIROIDES, Thurber. (Poa airoides, ^"utt. in Gen. l,p. 68.) 
 Culm 4-5 high, erect; leaves with very long sheaths, short and acute ; 
 panicle erect, attenuated ; branches seini-verticillate, few and capillary ; 
 spikelets oblong, obtuse, nearly sessile, or upon short peduncles, 4-6- 
 flowered ; glumes very unequal, shorter than the palets; flowers dis- 
 tinct, somewhat cylindric, obtuse, shining, purplish, scarious, and often 
 lacerate at the point, obsoletely 5 nerved, inner valve scabrous on the 
 margin. Hall & Harbour, 630." South Park, Porter. Canby. 
 
 GLYCERIA DISTAXS, Wahl. Colorado, fiae Watson. 
 
 CATABROSA 1 AQUATICA, Beauv. (Glyceria, Presl., Steud. Gram., 2S6J 
 
 SA, Beauv. Spikelets 2-3-flowered ; floAvers equal, perfect. Glumes mein- 
 l)raiions. colored, uneiiuul. shorter than the flower, concave, the lower oWong, 
 l-nerved. the upper ol>ovate, 3-uerved. erosely dentate at the apex, or both nerveless. 
 Palets membranous, equal in length, the lower 3-nerved and 3-keeled. trvmeaie-obTust-, 
 the upper 2-uervtMl and v?-keeled, rounded and somewhat 3-lobed. Stamens 3. Sr vies "2, 
 very short ; the stigmas plumose. Scales "2. shorter than the ovary. Grain oblong, free, 
 .shortly pediceled. Glabrous, creeping aquatics, with flat leaves, elongated mem- 
 branous ligules and diffusely b ranched panicles with, semi-verticillale branches: 
 flowers jointed at base and deciduous. 
 
150 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 Culms 4'-2 high, rather stout, ascending; leaves 2'-6' long, 2"-4" 
 wide, scabrous on the margin; panicle uniform, branchlets numerous, 
 divided ; glumes J" long, purplish ; flowers I" in length, light-brown iu 
 color. Hall& Harbour, 003. Wet Mountain Valley, Brandeyee. 
 
 BRIZOPYRUM SPICATUM Hook, var. STRICTUM, Gray. ( Uniolastricta, 
 Torr. Steud. Gram., 2SLJ Spikelets many-flowered, and the panicle 
 mostly rather loose and elongated, IJ'-Sj 7 in length ; culms J-2 high ; 
 pistillate spikelets 4"-8 // long, 4-13"flowered, the lower palet acutish or 
 almost acuminate ; staminate spikelets 4 // -9 // long, 0-18-flowered, slen- 
 der-pediceled and often somewhat nodding. Hall & Harbour, 040. 
 South Park, Porter. 
 
 POA ALPINA, Ij.Hall & Harbour, 074. Mt. Lincoln, at 12,500 feet 
 altitude, Weston's Pass, at 11,000 feet, and White House Mountain, at 
 1 1,500 feet, Coulter. 
 
 POA CASSIA, Sm., var. STRICTIOR, Gr. On Pike's Peak, Canby. Along 
 the foothills, Coulter. 
 
 POA SEROTINA, Ehrh. Hall & Harbour, 072. Ute Pass, Porter. 
 Weston's Pass, Coulter. 
 
 POA TENUIFOLIA, Nutt. Tufted, l-2 high ; culm slender, erect, gla- 
 brous or with the sheaths and leaves more or less scabrous ; leaves nar- 
 rowly linear, I'-G' long ; ligules short ; panicle erect, narrow and rather 
 -r*ose, 2 / -0 / long, the branchlets 2-5 together and scabrous ; glumes 
 5"_2" long, acute or acutish, a little scabrous on the mid-vein, 3-4-flow- 
 ered 5 lower palet 2" long, obtuse, nearly glabrous, puberulent or some- 
 what pubescent at base, but little compressed ; flowers readily separ- 
 ating at the joints. Hall & Harbour,. 008 and 075. 
 
 POA ANDINA, Nutt. In dense perennial tufts, glabrous excepting the 
 more or less scabrous panicle ; culms 4 / -2 high; slender, erect ; leaves 
 very narrow, l'-3' long, mostly revolute; ligules %"-2" long, acumi- 
 nate; panicle narrow or linear, strict, l'-2J', long, the branches 2-3 
 together; spikelets 2-3 flowered; glumes lJ"-2" long, acute or acutish, 
 a little scabrous on the mid vein; palets l /x long, pubescent, villous at 
 base, the lower one obscurely nerved, but little compressed. Near Long's 
 Peak, June, at 8,000 altitude, and Mount Lincoln, at 13,000 feet, Coulter. 
 
 ERAGROSTIS PURSHII, Beriih. Near Denver, Dr. Smith. 
 
 FESTUCA OVI^A, L. Meehan. Canon City, Brandegee. Clear Creek, 
 Porter. Denver, Dr. Smith. 
 
 Var. DUR IUSCULA, Gr. Hall & Harbour, G65. ' Twin Lakes, Porter. 
 East Kiver, Taylor Kiver, and White House Mountain, at 13,000 feet 
 altitude, Coulter. 
 
 Var. BREVIFOLIA, Watson. (F. brevifolia, Br., Steud. Gram., 313.} 
 King's Rep., vol. 5, p. 389. Tufted; culms low and slender, 4 / -8 / 
 high ; leaves setaceous and sheaths glabrous, the uppermost leaves 
 often very short and the sheath rather loose ; panicle racemose and nearly 
 simple, erect, l'-2' long ; spikelets l/^-tiowered ; flowers terete, some- 
 what scabrous, about 2" long, twice the length of the awn. Hall & Har- 
 bour, G66. Parry, 373. Near Denver, Dr. Smith. Twin Lakes, Porter. 
 Along the Platte, Coulter. 
 
 BROMUS KALMIT, Gr., var. Culm 12/-18 7 high, smooth; sheaths and 
 leaves minutely scabrous ; panicle & long, compound, branches minutely 
 downy ; spikelets 1' long, cauesceut with short appressed silky hairs 
 
SYNOPSIS OF THE FLORA OF COLORADO. 151 
 
 7-9-flowered: glumes 3 r/ -4" long, each 3-nerved, obtuse; lower pallet 5" 
 long, 7-nerved, awn 1^" long. Twiu Lakes, Porter. Buffalo Peaks and 
 Sierra Madre Kaoge, Coulter. 
 
 BROMUS CILIATUS, L. Divkle between Denver and Colorado Springs, 
 Porter. Wet Mountain Valley,' Brandegee. 
 
 PHRAGMITES COXMUNIS, L. STear Denver, Dr. Smith. 
 
 TRITICUM REPEXS, L. Hall & Harbour, 655. Denver, Dr. Smith. 
 I>. H. Smith. Canon City, Branclegee. Meelian. Along the Platte and on 
 Weston's Pass, Coulter. Known as u blue-joint." 
 
 TRITICUX CAXIXUX, L. Hall & Harbour, 680. 
 
 TRITICOC STRIGOSUM, Steud. Gram., 347. (Bromns, Bieb. T. cegilo- 
 poides* Turcz.) Resembling the last, but glaucous, the leaves narrow 
 and re volute; spike narrow-linear, with the spikelets shorter than the 
 joints or but little exceeding them; glumes obtuse or acutish, or some- 
 times acuminate. Hall & Harbour, 657. Ute Pass, Porter. Plains of 
 the Platte, Coulter. Canby. 
 
 LEPTURUS PAXICULATUS. ETntt. Denver, Dr. Smith. Colorado Springs, 
 Porter. Fremont County, Brandegee. 
 
 HORDEUX JUBATOI, L. Denver, Dr. Smith. B. H. Smith. Colorado 
 Springs and South Park, Porter. Caiion City, Brandegee. Plains of the 
 Platte, Coulter. A common and showy grass, the panicles often being 
 purplish. 
 
 HORDEOT PRATEXSE, Huds. Colorado Springs and South Park, 
 Porter. Plains of the Platte, Coulter. 
 
 ELYMUS CANABEXSIS, L. Colorado Springs, Porter. 
 
 ELY3IUS COXDEXSATUS, Presl. Steud. Grain., 351. Culm stont, 3-8 
 iiigh, roughish-puberulent and short-pubescent at the nodes or nearly 
 glabrous; spike 3 r -15 / long, erect, exserted, or sheathed at base, some- 
 times close-paniculate; spikelets 2-6 together, 3-10-flowered, puberu- 
 leut or nearly glabrous, exceeding the internodes of the pubescent rachis; 
 glumes setaceous-subulate from a very narrow base, 4"-5" long; flowers 
 4" long, acute or short-awned, or barely acutish, the upper palet 2- 
 toothed. Hall & Harbour* 654. 
 
 ELYMUS SITAXION. Schult., (Sitanion elymoides, Kaf., Steud Gram., 
 351. and Polyantlierix Hi/strir, Xees. Steud. Gram., 356J Culms 4'-2 
 high, tufted, and with the leaves and sheaths glabrous or somewhat 
 pubescent or scabrous; spike erect, -3' long, squarrose with its long 
 recurved awns, jointed and fragile at maturity; spikelets in pairs, 2-5- 
 Howered, smooth or puberulent; glumes entire or usually parted to the 
 base and the segments unequally 2-eleft, the divisions long-awned, (l'-3';) 
 flowers 3" long, the awn of the lower palet equaling that of the glumes, 
 with often a subsidiary awn or tooth on each side at the apex of the 
 palet. Hall A- Harbour, 679. Canon City, Brandegee. Mountains west 
 of Denver, Porter. Twin Lakes, Coulter. 
 
 DAXTHOXIA SERICEA, Xutt. Hall < Harbour, 622; Meelian. Ute Pass, 
 Porter. Along the Platte, Coulter. Wet Mountain Valley, Red field. 
 
 AVEXA STRIATA, MX. Hall & Harbour. 623. 
 
 TRISETU3I SUBSPICATOI, Bean v. Hall & Harbour, 625 ; Canby. Gray's 
 Peak, Dr. Smith. Sangre de Cristo Pass, Brandegee. Mount Lincoln, at 
 13,000 feet altitude, Westou r s Pass, Twin Lakes; Divide at the head of 
 Lake Creek at 12,000 feet altitude, and White House Mountain, at 12,000 
 feet, Coulter. 
 
 AIRA c JESPITOSA, L. South Park, Porter. Xear Denver, Mount Lin- 
 
152 . SYNOPSIS OF THE FLORA OF COLORADO. 
 
 coin at 12,000 feet, Weston's Pass, Twin Lakes and Sierra Madre Range, 
 Coulter. 
 
 AiRA DANTHONIOIDES, Trin. Steud. Gram., 221. Annual, glabrous; 
 culins very slender. 3'-3 high, geniculate at base; sheaths smooth, ex- 
 ceeding the internodes; lignles elongated; leaves short ('-4') and very 
 narrow or convolute-setaceous; panicle diffuse, the capillary branchlets 
 2-4 together and naked below; glumes 2-flowered, with the plumose 
 rudiment of a third, 2 // -3 // long, exceeding the flowers; lower palet trun- 
 cate and denticulate, l"-li" long, awned below the middle, the awn 
 2" -A" long, geniculate; grain free, fiattish, not grooved. Summit of 
 Gray's Peak, Dr. Smith. 
 
 HIEROCHLOA BOREALIS, B. & S. Hall & Harbour, C28. Canon City, 
 Brandegee. Clear Creek canon, Coulter. 
 
 PHALARIS ARUNDINACEA, L. Canon City, Brandegee. 
 
 P ASP ALUM SETACEUM, MX. Hall & Harbour, 653. 
 
 BECKMANNIA 1 ERUC^EFORMis, Host. Steud. Gram., 15. Culms stout, 
 lo_3jo high, erect from an ascending base, with the sheaths glabrous ; 
 ligules elongated ; leaves linear, 4 / -8 / long and 2"-6" wide, flat, acute, 
 scabrous ; panicle 4 / -12 / long, erect, strict, secuud, the short, crowded 
 branchlets densely flowered from the base, glabrous ; spikelets sessile, 
 imbricately arranged in two rows, nearly orbicular, 1J ;/ in diameter, the 
 upper rudimentary floret minute, stipitate. Hall and Harbour, 658. 
 Near Denver, Dr. Smith. 
 
 PANICUM CAPILLARE, L. Canon City, Brandegee. 
 
 PANICUM VIRGATUM, L. Near Denver, Dr. Smith. 
 
 PANICUM AMARUM, Ell. Canon City, Brandegee. 
 
 PANICUM PAUCIFLORUM, Ell. Canon City, Brandegee. 
 
 PANICUM CRUS-GALLI, L. Near Denver, Dr. Smith. Canon City 
 Brandegee. Introduced. 
 
 SETARIA VIRIDIS, Beauv. Canon City, Brandegee. Introduced. 
 
 SETARIA ITALICA, Kunth. Canon City, Brandegee. Introduced. 
 
 CENCHRUS TRIBULOIDES, L. Canon City, Brandegee. 
 
 ANDROPOGON FURCATUS, Muhl. Divide between Denver and Colo- 
 rado Springs, Porter. 
 
 ANDROPOGON SCOPARIUS, MX. Canon City and Wet Mountain Yal- 
 ley, Brandegee. 
 
 ANDROPOGON ARGENTEUS, Ell. Hall & Harbour, 651. Canon City, 
 Brandegee. 
 
 SORGHUM NUTANS, Gray. Cafion City, Brandegee. 
 
 EQUISETUM ARVENSE, L. Near Denver, Dr. Smith. Clear Creek, Coul- 
 ter. 
 
 EQUISETUM PRATENSE, Ehrh. Mt. Lincoln, Twin Lakes and Sierra 
 Madre Range, Coulter. 
 
 1 BECKMANNIA, Host. Panicle racemose, contracted. Spikelets compressed, 2-flowered, 
 the upper floret an abortive rudiment. Glumes 2, ob ovate, compressed boat-shaped. 
 subcoriaceous, equal, a little shorter than the flower, pointless. Palets membranous. 
 the lower ovate, concave, acutish. mucronate, 3-nervcd, the upper 2-uerved, bifid, 
 Stamens 3. Styles 2, with elongated plumose stigmas. Scales 2. bifid, glabrous. Grain 
 free, glabrous. A coarse perennial aquatic, 
 
SYNOPSIS OF THE FLORA OF COLORADO. 153 
 
 EQUISETUM L^viGATini, Brarm. Xear Denver, Dr. Smith; Porter. 
 Saint Vrain Canon and Clear Creek, Coulter. 
 
 EQUISETUM VARIEGATUM, Sehleicher. Clear Creek, near Denver, 
 Coulter. 
 
 FIL.ICES. 
 
 POLYPODIUM VULGARE, L. Hall & Harbour, 694. Grand Canon of 
 Arkansas, Brandegee. 
 
 PTERIS AQTJILINA, L. Along the Platte, and in the Sierra Madre 
 Range, at 10,000 feet altitude, Coulter. Wet Mountain Valley, Brandegee. 
 
 CHEILANTHES FENDLERI, Hook. Spec. Fil, 2, p. 103. Small ; caudex 
 creeping, scaly; stipes sparse, scattered, slender, brown, scaly with sub- 
 ulate, appressed scales, on the main and secondary rachises the scales 
 more copious, broader, ovate- acuminate, white, glossy brown at the base ; 
 fronds 2 / -3 / long, ovate-lanceolate, subcoriaceous, pale-green, gla- 
 brous on both sides, tripinnate ; primary pinnules ovate-lanceolate, ob- 
 tuse, pinnules rather large for the size of the frond, convex, broad- 
 cuneate, sessile, somewhat decurrent, retuse at the apex, entire or 2-3- 
 lobed, the margin of the lobes merely incurved, scarcely confluent and 
 forming the involucres. Hall & Harbour; Brandegee; Canby. Chiann 
 Cafion and Glen Eyrie, Porter. 
 
 CHEILANTHES TOMENTOSA, Link. Grand Canon of the Arkansas, 
 Brandegee. 
 
 CHEILANTHES LANUGINOSA, Kutt. Meelian. Grand Canon of the 
 Arkansas, Brandegee. Chianu Canon, Porter. 
 
 CHEILANTHES EATONI, Baker. Sijn. Fil., p. 140. Stipes tufted, 3'-G' 
 in length, wiry, erect, densely clothed with pale brown, linear-subulate 
 scales ; fronds 3'-%' in length, lJ'-2 7 broad, ovate-lanceolate, tripinuatilid ; 
 lower pinna? distant, alternate or opposite, deltoid ; pinnules linear-oblong, 
 pinnatifid; rachis rigid, covered with scales like the stipe, which also 
 cover thickly the midrib of the pinnae beneath, texture coriaceous, upper 
 surface densely clothed with a white woolly tomentum, lower%lso densely 
 matted, the margin of the segments incurved. Grand Canon of the 
 Arkansas, Brandegee. 
 
 XOTHOL^ENA FENDLERi, Kunze. Stipes densely tufted, 2 / -4 / long, 
 wiry, chestnut-brown, naked, the scales linear, bright-ferruginous ; frond 
 - 7 -3 7 each way, deltoid, tripinnate. all the rachises very zigzag ; pinnae, 
 pinnules, and segments all stalked, deltoid ; lobes close, oolong, blunt, 
 not more than I" long, " broad ; texture subcoriaceous, upper surface 
 naked, lower covered with a fine white powder. Abundant throughout 
 Fremont County, Brandegee. Chiaiiu Canon and Glen Eyrie, Porter. 
 
 PELL.EA GRACILIS, Hook. Ten Mile Canon, below Breckenridge, 
 Brandegee. 
 
 PELL.EA ATROPURPUREA, Link. Glen Eyrie, Porter. 
 
 PELLJEA WRIG-HTIAXA, Hook. (P. (Allosorus) mucronata, Eaton. Sill. 
 Jour., July, 1S56J Stipes tufted, 2 / -4 / long, strong, erect, naked, dark- 
 brown, polished; fronds 3'-G' long, V-3' broad, deltoid, bipiunate; pinna3 
 spreading or erect patent, rigid, I 7 or more long, with several distant, 
 linear, oblong pinnules, sterile ones flat, ovate, fertile ones narrowed, 
 revolute on the margins, 3 /7 -4 7/ long, with a sharp, mucrouate point; 
 rachis chestnut-brown, polished like the stipe ; texture coriaceous, both 
 surfaces naked, pale glaucous-green; involucre broad, coriaceous, rolled 
 permanently over the sori. Canon City and vicinity, Brandegee. 
 
 CRYPTOGRAMME ACROSTICHOIDES, E. Br. (Allosorus acrostickoides, 
 
154 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 SprengJ Hall & Harbour, 688; Parry. Wet Mountain Valley, Brandegee. 
 Sierra Madre Bauge, Gothic Mountain and Mountain of the Holy Gross, 
 Coulter. 
 
 ASPLENIUM SEPTENTRIONALE, L. Fronds many from tufted root- 
 stocks, 3'-5' high, on very long stipes, erect; pinnae 2-4, narrow, linear, 
 erect, entire at base, with 2-several setaceous divisions at the summit 
 Hall & Harbour, 689. Grand Canon of the Arkansas, Brandegee: Red- 
 field. 
 
 ASPLENIUM TRICHOMANES, L. Grand Canon of the Arkansas, 
 Brandegee. 
 
 ASPLENIUM EBENEUM, Ait. Green Horn Mountains, E. L. Greene. 
 
 ASPLENIUM FILIX-FCEMINA, Bernh. Hoopes. 
 
 PHEGOPTERIS DRYOPTERIS, Fee. Hall & Harbour, 695. 
 
 ASPIDIUM FILIX-MAS, Swartz: Hall & Harbour, 687. Grand Canon 
 of the Arkansas, Brandegee. Along the foot-hills west of Denver, Coul- 
 ter. 
 
 CYSTOPTERIS FRACHLIS, Bernh. Hall & Harbour, 690; Canby. South 
 Park, Porter. Wet Mountain Valley, Brandegee. Bear Creek, near Den- 
 ver, Mount Lincoln, at 12,000 feet altitude, Twin Lakes and White House 
 Mountain, Coulter. 
 
 WOODSIA SCOPULINA, Eaton. Boot-stock short, creeping ; stalks 2'-- 1' 
 high, chaffy at the base, stramineous, puberulent, like the rachis and under 
 surface of the frond, with minute flattened hairs and stalked glands; 
 fronds lanceolate, '-8' long, pinnate; piume numerous, S^-IO" long, 
 pinuatifid with 10-16 short ovate or oblong crenulate or toothed divis- 
 ions; indusium very delicate, deeply cleft into laciniae, which terminate 
 in short hairs composed of irregular cylindrical cells. Colorado, fide D. 
 C. Eaton. 
 
 WOODSIA OREGANA, Eaton. Canby. Chiann Canon, South Park 
 and Upper Arkansas, Porter. MeeJian. Wet Mountain Valley, Bra nclegee. 
 Long's Peak and Twin Lakes, Coulter. Grand Canon of the Arkansas, 
 Red field. 
 
 BOTRYCHIUM VIRGINICUM, Swartz. Grand Canon of the Arkansas, 
 Brandegee. 
 
 L.YCOPODIACE 2E. 
 
 LYCOPODIUM ANNOTINUM, L. White House Mountain, Coulter. 
 SELAGINELLA RUPESTRIS, Spring. Sierra Madre Bange, Coulter. 
 On rocks, in Glen Eyrie and South Park, Porter. 
 
 MUSCI. 
 
 BY LEO LESQUEREUX, ESQ. 
 
 The mosses here enumerated and described were collected in Colorado 
 Territory, by Elihu Hall in 1865, Major Downie in 1868, Prof. Thos. 
 C. Porter, and by the assistants of Dr. F. V. Hayden and myself 
 in 1872 and 1873. A few mentioned in Hayden's Beport of 1872, from 
 the mountains north of Colorado, and in Watson Catalogue, from Utah 
 and the Uiutas, all species likely to be found in Colorado Territory, 
 are added. Considering that none of the botanists who have gathered 
 these materials made in their researches a specialty of this class of 
 plants, which mostly grow in deep and dark ravines of difficult 
 
SYNOPSIS OF THE FLORA OF COLORADO. 155 
 
 access, and that, too, the eastern slopes of the Kocky Mountains are / 
 mostly bare of trees and deprived of atmospheric humidity, the essen- 
 lial food of the mosses, this catalogue is already remarkably rich and 
 interesting in many points. 
 
 SPHAGNUM ACUTIFOLIUM, Ehrh., var. TENERUM, Sulliv. & Lesqx. 
 Muse. Bor.-Am. ^o. 11. 
 
 Hob. Uinta Mountains, Porter. Colorado, Hall; Downie. 
 
 PHASCUM CARNIOLICUM, Web. & Mohr. A very rare species, found 
 as yet in Caruiola and Sardinia only. 
 
 Hab. Western plains of Kansas ; upon silex. Hall. 
 
 PHASCUM CUSPIDATUM, var. . PILIFERUM, Schreb. 
 
 Hal). Along the Platte. Hall. 
 
 WEISIA CRISPULA, Hedw. Immature specimens. 
 
 Hub. Low mountains. Hall. 
 
 WEISIA CIRRHATA, Hedw. This form approaches the former species. 
 By its capsule and its aunulus it is referable to W. cirrhata; the leaves, 
 however, are longer, their borders scarcely reflexed, and the articulations 
 of the pale red teeth less marked than in the normal form. An species 
 propria ?) 
 
 Hab. Mountains. Hall. 
 
 GY3IXOSTO3IU3I RUPESTRE, 
 
 Hab.Gleu Eyrie, 1872. Porter. 
 DiCRA^roi GRACILESCENS, Web. & Mohr. 
 Hab. On wet rocks; high mountains. Hall. 
 DICKASOI VIRENS, Hedw. 
 
 Hab. On stones in alpine brooks, near snow-range ; not rare. 
 I)icRANU3i PELLrciDini. Hedw., var. FAGIMONTANUM, Brid. The 
 same remarkable variety as found in Vermont. 
 Hab. Mountains; (coll. 1873). 
 
 DlCRANOI VARIU3I, Hedw. 
 
 Hab. Base of the mountains. Hall. 
 
 DlCRANUM FUSCESCENS, Turn. 
 
 Hab. Twin Lakes, in pine woods. Downie. (Expl. 1873.) 
 DICRAXOI MUHLENBECKII, Bryol. Eur. 
 Hab. Roots of trees, pine-region ; not rare. 
 
 DlCRA^ritt RHABDOCARPOX, Slllliv. 
 
 Hab. Alpine ; moist places on the ground. Hall ; Downie. A rare 
 species, found in good fruiting specimens, which confirm Sullivant's 
 diagnosis, made irom specimens too old, in Contrib. to Bry. 1, p. 172, 
 pi. iii. 
 
 CAXPYLOPUS HALLI, (sp. nor.) Plantoe csespitosse, colorelutescente- 
 virides, sericeo-nitentes ; caulis vix pollicaris, pluries dichotonius, basi 
 iiudus (non radiculosus). Folia stricta, erecto-subaperta lanceolata, 
 tubulosa, e toto Itevia, integerrima, nervo latissimo foliam iiitegrani 
 eqnidem ad basiin occupante, cellulis alaribus paucis, rufescentibus 
 quadra to -in flat is. 
 
 Hab. Mountains. Hall. 
 
 CAMPYLOPUS FRIGIDUS, (sp. nor.) 
 
 Priori nervo dilatato affinis ; diifert foliis angustis, longioribus, linear- 
 ibus, canaliculatis, margine versus apicem denticulatis, dorso scabris. 
 
 As in the former species the medial nerve tills the whole leaf except 
 only four alar cells at the base; these cells are round. Two other forms, 
 
156 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 one differing from this species by its reflexed leaves, and another with a nar- 
 rower medial nerve and broader leaves, are considered as mere varieties. 
 
 Hal). ISTear snow-range, on the ground. Hall. 
 
 PHAROMITRIUM SUBSESSILE, Schp. Synops. Muse. 
 
 Hal). Sand-hills on the plains. Hall. Moist sand, base of the hills 
 near Point of Rocks. Lesquereux ; (also Explor., 1873). 
 
 POTTIA CAVIFOLIA, Hedw. On the Platte near the mountains. Hall. 
 
 POTTIA HEIMIT, Schp. Synop. Muse. 
 
 Hal). Mountains of Colorado ; sandy ground. Hall; (also Explor. of 
 1873.) 
 
 ANACALYPTA LATIFOLIA, Schwregr. 
 
 Hal). Tops of rocks in the mountains, Downie. Uinta Mountains, Wat- 
 son's Catalogue. 
 ^ DIDYMODON HUBELLUS, Bryol. Eur. 
 
 Hob. On stone and ground, plains and mountains; common. 
 
 DISTICHIUM CAPILLACETTM, Bryol. Europ. 
 
 Hob. Base of overhanging rocks, high mountains ; not rare. 
 
 DISTICHIUM INOLINATUM, Bryol. Eur. 
 
 Hal). Same stations as the former; Bear River Canon, Uinta Moun- 
 tains; Watsons Catalogue. 
 ^ CERATODON PURPUREUS, Brid. 
 
 Hob. Everywhere on humected rocks and ground, collected by all 
 the explorations. 
 
 LEPTOTRICHUM GLAUCESCENS (Hampe,) Hedw. 
 
 Hob. Mountain slopes near Twin Lakes. Downie. 
 
 DESMATODON LATIFOLIUS, Bryol. Europ. 
 
 Hal>. Mountains of middle altitude in Colorado. Hall. 
 Y DESMATODON LATIFOLIUS, var. ,9. GLACIALIS, Bryol. Eur. 
 
 Hal). High mountains near Twin Lakes. Downie. (Also in Explor. 
 1873.) 
 
 DESMATODON SISTYLIUS, Bryol. Eur. 
 
 Hab. Near snow-range; mountains of Colorado. Downie. A very 
 rare and fine species, mostly of the glacial regions, like the following 
 one. Both are known from the Dofrafield Mountains of Norway. 
 
 DESMATODON LAURERI (Sclmltz). Bryol. Eur. 
 
 Hab. The same locality as the former. Downie. 
 
 BARBULA RIGIDA, Sehultz. 
 
 Hab. Plains along the Platte ; only found sterile. Hall. 
 
 BARBULA SUBULATA, Brid. 
 
 Hab. Near Salt Lake, 011 rocks ; Watson's Catalogue. 
 
 BARBULA MUCRONIFOLIA, Schwa?gr. 
 
 Hab. Middle elevations ; on rocks and banks. Hall The moss referred 
 to the former species is probably the same as this, which is found all 
 through the Rocky Mountains, and has been distributed in Drummond's 
 collections as B. subulata, which, however, chiefly inhabits the plains. 
 ^ BARBULA RURALIS, Hedw. 
 
 Hab. Low mountains, on dry rocks, &c.; common. 
 
 GRIMMIA CONFERTA, Funk. 
 
 Hab. Rocks base of the mountains. Hall. (Also Explor. of 1873.) 
 
 MMIA APOCARPA, Hedw. 
 
 Hab. Same localities as the former; more common. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 157 
 
 GRIMMIA PLAGIOPODTA, Hedw. 
 
 Hab. On rocks ; in the mountains. Hall. 
 
 GRIMMIA TRICHOPHYLLA, Grew. 
 
 Hab. Shaded rocks, in low mountains. Hall. 
 \ GRIMMIA OVATA, Web. and Mohr. 
 
 Hab. On rocks, mountain region. Hall. 
 
 GRIMMIA OYATA, var. ,5. AFFINIS, Bryol. Eur. 
 
 Hab. Same localities as the former. Hall; (also Explor. 1873.) 
 
 GRIMMIA LEUCOPH^EA, Grev. 
 
 Hab. On flat sand rocks, from the plains to the mountains, (Explor. 
 of' 1873,) ; also abounds at Point of Kocks, Wyoming. Lesquereux. 
 
 GRIMMIA CALYPTRATA, Hook. 
 
 Hab. Dry rocks in low mountains. Hall. 
 
 This moss on the eastern side of the Rocky Mountains is rarely as well 
 developed as in California, and the Sierra Nevada Mountains. The pul- 
 vini are low and the stems slender. 
 
 KACOMITRIUM HETEROSTICHUM, Brid. 
 
 Hab. Humected rocks in the mountains. Found in poor specimens 
 by Hall ; (also in Explor. of 1873.) 
 
 HEDWHHA CILIATA, Ehrh. 
 
 Hab. On rocks, near the base of the mountains ; not rare. 
 
 ZYGODOX LAPPOXICUS, Bryol. Europ. 
 
 Hab. Near Sand Lake ?, iu poor specimens ; (Explor. 1873.) 
 
 ORTHOTRICHUM HUTSCHINSLE, Smith. 
 
 Hab.rOn rocks, borders of creeks, base of the mountains ; common. 
 jf ORTHOTRICHUM ANOMALUM, Hedw. 
 
 Hab. Same stations as the former ; more rarely found. Hall. 
 
 ORTHOTRICHUM HALLII, hulry. & Lesqx., in tiulliv. Icones, Supple- 
 ment, PL 45. 
 
 Orthotrico strangulate affine ; differt foliis superne valde utra facie 
 papillosis; capsula sicca cylindrical, sub ore hand vel vix coiistricta; ca- 
 lyptra lata capsulam totam tegente, etc. 
 
 Hab. On rocks in the mountains. Hall. 
 
 ORTHOTRICHUM UTAHENSB, Sulliv. Mss. 
 
 Priori affine sed robustior; foliis latioribus valde ])apillosis; capsnLe 
 stomatibus immersis. The specimens (too old) have not any capsule with 
 the peristome. 
 
 Hab. Ogden Canon, on shaded perpendicular rocks. Lesquereux. 
 
 ORTHOTRICHUM SPECIOSUM, var. Xees. 
 
 A nne variety with slender steins and male plants entirely covered 
 with thick male buds. The habitat is as remarkable as the form of the 
 plants, it being, as indicated by Hall, upon rocks on low mountains, while 
 in the plains the species is only found upon trees. 
 
 ENCALYPTA COMMUTATA, Xees & Hornsch. 
 
 Hab. High cliffs, near Twin Lakes. Doicnie. 
 v- ENCALYPTA YULGABIS, Hedw. 
 
 J/&. Slopes and fissures of rocks ; low mountains ; common. 
 
 EXCALYPTA STREPTOCARPA, Hedw. Sterile. 
 
 Hab. Glen Eyrie. Porter. 
 
 ENCALYPTA RHABDOCARPA, Schwsegr. 
 
 Hab. Same locality as the former ; less frequent. 
 
 ENCALYPTA RHABDOCARPA, var. ? 
 
 Foliis piliferis, areolatione compacta, papilloso-rugosa ; capsula sub- 
 
158 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 striata sicca plicato-striata, apophysata ; peristomio nullo ; calyptra 
 longiori fusca, apice rugosa. 
 
 This form is referable, by its leaves and the ribbed capsule, to E. rhab- 
 docarpa: by the absence of peristome to E. vulgar-is, and by the apoph- 
 ysate capsule to E. apophysata, IS. & H. It is apparently a new spe- 
 cies. The specimens, however, are too few and incomplete for a satis- 
 factory diagnosis. 
 
 Hob. High mountains. Mixed with Desmatodon sistylius. Downie. 
 
 DISSODON FRCELICHIANUS, Froel. 
 A tine and rare species found in good specimens. 
 Hab. Mountains of Colorado. Hall. 
 DISSODON HORNSCHUCHII, Grev., Arn. 
 Hob. Near Twin Lakes. Downie. 
 TAYLORIA SPLACHNOIDES. Hook. 
 Hab. Same locality as the former. Downie. 
 PHYSCOMITRIUM TETRAGONUM, Brid. 
 
 Hob. Moist sandy soil on the plains. Rail. A very rare species, found 
 only once before in this country. 
 PHYSCOMITRIUM PYRIFORME, Brid. 
 Hal). Moist ground, on the plains and in the mountains. 
 
 FUNARIA HYGROMETRICA, Hedw. 
 
 Hob. Humected rocks and ground ; common. 
 
 FUNARIA HYBERNICA, Hook. 
 
 Hob. Mountains of Colorado ; (Explor. of 1873.) 
 
 LEPTOBRYUM PYRIFORME, (Linn.,) Schp. 
 
 Hal). Wet ground, under the shade of pines ; common. 
 
 WEBERA ELONGATA, Schwsegr. 
 
 Hob. High mountains ; fissures of rocks. Hall. 
 
 WEBERA NUTANS, Schreb. 
 
 Hal). Shaded ground in the mountains ; not rare. 
 
 WEBERA CRUDA, Schreb. 
 
 Hub. At the base of overhanging rocks and fissures; not rare. 
 
 WEBERA LUDWIGIT, Spreng. 
 
 Hob. High mountains; sandy soil along rivulets. Hall; Doicnie. 
 (Expl. of 1873.)' 
 , BRYUM PENDULUM, (Hornsch.,) Schp. 
 
 Hab. On the ground, low mountains; common. 
 
 BRYUM PENDULUM, var. MONTANUM. Forma normal! differt ; capsula 
 graciliori, obovato-pyriformi, operculo longiori acutiusculo ; areolationis 
 foliorum ductibus iutercellularibus crassioribus, margine foliorum vix 
 coftspicuo concolore, nervo viridi in acumine longiori producto. It is 
 apparently a distinct species. 
 
 Hab. Mixed with Pottia Heimii. High mountains. Downie. It is 
 also in the collections of 1873, by Dr. Hayden's assistants. 
 ^ BRYUM INTERMEDIUM, Web. & Mohr. 
 
 Hal). Fissures of humected rocks ; not rare. 
 ^ BRYUM CIRRHATUM, Hoppe & Hornsch. 
 
 Hab. Grassy slopes and fissures of rocks, Twin Lakes. Downie. 
 
 BRYUM BIMUM, Schreb. 
 
 Hab. Wet meadows ; common. 
 
 BRYUM MUHLENBECKII, Bryol. Eur. 
 
 Hab. Eocky Mountains; from specimens in Sullivanfs herbarium coin- 
 
SYNOPSIS OF THE FLORA OF COLORADO. 159 
 
 
 
 municated by General Palmer. This species is often confounded with. 
 Bryum alplnum from its close likeness to it. 
 /"BRYUM c^spiTiciU3i, Linn. 
 
 Sab. Dry ground ; common everywhere. 
 ..' BRYUM ARGENTEUM, Linn. 
 
 Hab. Same localities as the former ; rare in the Rocky Mountains. 
 
 BRYU3I PSEUDO-TRIQUETRU3I, Hedw. 
 
 Hab. Springs on rocks. Downie. 
 
 BRYUM ROSEUM, Dill. 
 
 Hab. Shade of pine woods in canons. Explor. of 1873. 
 
 ZlERIA DE3IISSA, (Homscll.,) Schp. 
 
 Hab. Fissures of rocks; high mountains near Twin Lakes; rare. 
 Doicnic. 
 
 ^ MKEUM CUSPID ATUM, Hedw. 
 
 Hab. Shaded wet places ; low mountains. Hall. 
 y MNIUM SERRATUM, Schrad. 
 
 Hab. Sandy ground, springs and borders of streams ; not rare. 
 
 MNIUM SPOOSUM, Yoit. 
 
 Hab. Mountains of middle altitude, under pines. Downie. 
 
 MNiroi SPINULOSUM, Bryol. Eur. KI . 
 
 Hab. Same places as the former; in open pine woods. Hall. 
 
 MNIU3I PUNCTATUM, Lillll. 
 
 Hal). Springs in low mountains; sterile. Hall. 
 
 AMBLYODON DEALBATUS, Pal. Beauv. 
 
 Hab. Boggy ground ; plain and mountains. Twin Lakes. Downie. 
 
 MEESIA ULIGESOSA, Hedw. 
 
 Hab. Moist earth ; fissures of rocks. Hall. 
 
 AULACOMNIUM PALUSTRE, SdlWregr. 
 
 Hab. Boggy places, plains and mountains; common. 
 
 BARTRAMIA ITHYPHYLLA, Brid. 
 
 Hab. Fissures of shaded rocks, middle altitude ; not rare. 
 
 BARTRAMIA FONTANA, Brid. 
 
 Hab. Everywhere along streams and on wet rocks, with its numerous 
 varieties, gracilis, alinna,falcata, &c. 
 
 TnmiA MEaAPOLiTAXA, Hedw. 
 ' Hab. Shaded banks and wet fissures of rocks; not rare. 
 
 TIMMIA AUSTRIACA, Hedw. 
 
 Hab. Same positions, at greater altitude; rare. Hall; Doicnie. 
 
 POGOXATOl URNIGERUM, (f) Linil. 
 
 Specimens too young and incomplete. May represent P. capillary 
 Brid., which is closely allied to P. urmgerum. Indeed, botli species are 
 considered by many as the same. 
 
 Hab. Twin Lakes. Doicnie. 
 
 POG-ONATUM ALPINUM, Boelll. 
 
 Hab. ^Yet rocks, waterfalls, c., middle stations. 
 It is mostly represented in the Rocky Mountains in its var. d. brcvi- 
 fulium* Sch[). 
 
 POLYTRICIIADELPHUS LYALL1I, Mitten. 
 
 Hab. Pine-woods, middle region. Hall. 
 
 POLYTRICHUM GRACILE, MenzieS. 
 
 Hab. Swampy ground in the mountains. Hall. 
 
1GO SYNOPSIS OF THE FLORA OF COLORADO. 
 
 POLYTRICHUM PILIFERUM, Sclirel). 
 
 Hal). Upon earth covering sand-rocks ; common. 
 
 POLYTRICHUM PILIFERUM, var. L^EVIPILUM. 
 
 Polytrichum Icevipilum, Hampe. 
 
 Hab. The same localities as the normal form, ascending,* however, 
 to a higher altitude. Hall. 
 ^ POLYTRICHUM JUNIPERINUM, Hedw. 
 ^ Hab. Slopes iii the mountains, on moist ground. 
 
 It is common, mostly represented by its alpine form, var. 8. alpinum, 
 Schp. 
 
 FONTINALIS ANTIPYRETICA, Linn., var. 
 
 F. Neo-Mexicana, Snlliv. & Lesqx. 
 
 Hab. Creeks and rivulets, attached to rocks. Hall. 
 
 DICHELYMA CAPILLACEUM, Bryol. Eur. 
 
 Hab. Swift running streams ; rare. Hall; (and Explor. of 1873). 
 
 THUIDIUM BLANDOWII, Web. & Molir. 
 
 Hab. Pine- woods near Twin Lakes. Downie. 
 
 THUIDIUM ABIETINUM, Bryol. Eur. 
 
 Hal). Glen Eyrie, along \\it\iHypnum rugosum. Ehrh. Porter. 
 
 HYPNUM (ELODIUM) PALUDOSUM, Sulliv. 
 
 Hab. Swamps in the Parks. Hall. 
 
 CLIMACIUM DENDROIDES I Web. 
 
 Hab. Boggy places in the mountains, sterile. It has been collected 
 by both Hall and Downie in the same undeterminable state of growth. 
 The leaves are shorter and more closely imbricated than in C. Amcrica- 
 nunij Brid. 
 
 PYLAIS^SA INTRICATA, (Hedw.,) Schp. 
 
 Hab. On trees, base of the mountains. The specimens are without 
 fruit, and the species somewhat uncertain. 
 / HYPNUM (BRACHYTHECIUM) LJETUM, Brid. 
 ** Hab. On the ground, shaded, grassy banks. Downie. 
 
 HYPNUM (BRACHYTHECIUM) ALBTCANS, Xeck. 
 
 Hab. On rocks, Uinta Mountains. Watson's Catalogue. 
 
 HYPNUM (BRACHYTHECIUM) COLLINUM, Sebp. 
 
 A variety merely differing from the European form by its conical oper- 
 culuin. As the specimens have a single ripe capsule, it cannot be ascer- 
 tained if this character is merely casual. 
 
 Hab. Grassy banks in the mountains. Hall; Downie. 
 
 HYPNUM (BRACHYTHECIUM) CAMPESTRE, Brch. & Schp. 
 
 Hab. Borders of Sand Lake; sterile. (Explor. of 1873.) 
 ^ HYPNUM (EURYNCHIUM) STRIGOSUM, Hoffm. 
 
 A diminutive form, closely resembling H. diversifolium. 
 
 Hab. Boots of pines ; hills and low mountains. Hall. 
 >( HYPNUM (EURYNCHIUM) DIVER SIFOLIUM, Bryol. Eur. 
 
 Hab. Bark of dead pines in the Uiutas. Watson's Catalogue. 
 
 HYPNUM (PLACHOTHECIUM) NITIDULUM, Wahl. 
 
 The form is exactly corresponding with the European specimens and 
 diifers from the Xorth American eastern specimens ; referable to a dif- 
 ferent species. 
 
 Hub. Moist shaded banks, pine region. Downie. 
 
 HYPNUM (PLAGIOTHECIUM) L^ETUM, Schpr. 
 
 Hab. Same stations as the former. Hall. 
 
SYNOPSIS OF THE FLORA OF COLORADO. 161 
 
 HYPNUM (LIMNOBIUM) EUGYRIUM, Schpr. 
 Hob. On stones, in mountain streams. Hall. 
 HYPNUM (AMBLYSTEGIUM) SUBTILE? Hoffm. 
 
 It is apparently the species. The capsule is too old tor positive de- 
 termination. 
 
 Hob. Upon stones, in dry creeks. Hall. 
 
 HYPNUM (AMBLYSTEGIUM) SERPENS, Linn. 
 Hal. Wet ground, near springs and shaded banks. Hall. 
 HYPNUM (AMBLYSTEGIUM) RADICALE, Brid. 
 Hob. Decayed wood, in canons. Hall. 
 HYPNUM (AMBLYSTEGIUM) ORTHOCLADON, Beauv. 
 Hab. On stones, borders of shaded springs. Hall. 
 HYPNUM (CAMPYLIUM) HISPIDULUM, Brid. 
 Hab. Eoots of trees, low mountains. Hall. 
 HYPNUM ADUNCUM, Hedw. var. ?. polycarpum, Schpr. 
 Hab. Twin Lakes. Doicnie. 
 HYPNUM FLUITANS, Dill. 
 Hab. Same as the former ; sterile. Doicnie. 
 A HYPNUM UNCINATUM, Hedw. 
 
 Hab. Decayed wood, moist ground, &c. ; common. 
 
 HYPNUM FILICINUM, Linn. 
 
 Hab. Eocks humected by springs. Hall. 
 
 HYPNUM (RHITIDIUM) RUGOSUM, Ehrh. 
 
 Hab. Dry ground, mountains of middle altitude ; common. 
 
 HYPNUM (DREPANIUM) REPTILE, Michn. 
 
 Hab. Eoot of trees in pine woods, same altitude. Hall. 
 
 HYPNUM (DREPANIUM) PALLESCENS, Schpr. 
 
 Hab. On the bark of dead pines, Uinta Mountains. Watson's 
 Catalogue. 
 / HYPNUM (DREPANIUM) CUPRESSIFORME, Hedw. 
 
 Hab. On trunks of dead pines ; not rare. 
 
 HYPNUM (DREPANIUM) IMPONENS, Hedw. 
 
 Hab. On decayed wood, base of the mountains. Hall. 
 
 HYPNUM (CTENIDIUM) MOLLUSCUM, Hedw. 
 
 Hab. Humected perpendicular rocks, in cafions. Hall. 
 
 HYPNUM GIGANTEUM, Schpr. 
 
 Hab. Hot Springs, National Park. (Explor. of 1872.) 
 
 HYPNUM NITENS, Schreb. 
 
 Hab. Low grounds, in boggy places. Hall; Dotcnie. 
 
 By HENRY WILLEY, ESQ. 
 
 DACTYLINA MADREPIFORMIS, Wulf. Horse Shoe Mountain, at 
 11,000 feet altitude, July 18. (1.) 
 CETRARIA ISLANDICA, Ach. An infertile fragment. (2.) 
 
 USNEA TRICHODEA, Ach. (3.) 
 
 THELOSCHISTES PARIETINUS, (L.) (4.) 
 
 PARMELIA KAMTSCHADALIS, Eschw., var. AMERICANA, Xyl. Horse 
 Shoe Mountain, at 11,000 feet altitude. Infertile. (5.) 
 11 F c 
 
162 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 PARMELIA CAPERATA, Ach. Infertile. (6.) 
 PARMELIA CONSPERSA, Ach. (7.) 
 PARMELIA OLIVACEA, Ach., var. EXASPERATA, Dw. (8.) 
 PARHELIA LANATA, Kyi. Mount La Plata, at 14,200 feet altitude, 
 August 3. Infertile. (9.) 
 UMBILICARIA CYLINDRICA, Ach. (10.) 
 UMBILICARIA RUGIFERA, Kyi. (11) 
 PELTIGERA APHTHOSA, Hoffm. (12.) 
 
 PELTIGERA CANINA, Hoffni. (13.) 
 
 SOLORINA BISPORA, Kyi. Syn. p. 331. White-House Mountain, at 
 13,800 feet altitude, August. Perhaps, as Kyi. observes, only a variety 
 of S. saccata, from which it differs in its more urceolate apothecia and 
 thekes containing only two spores, which in the specimens before me 
 measure .054 to .110 mm. long and .027 to .040 mm. wide. Kew to this 
 continent. (14.) 
 
 COLLEMA PULPOSUM, Ach. Infertile. (15.) 
 
 PLACODIUM CORALLOIDES, Tuck. A small, infertile fragment. (16.) 
 
 PLACODIUM ELEGANS, DO. (17.) 
 
 PLACODIUM CALLOPISMUM, Ach. (18.) 
 
 PLACODIUM VITELLINUM, (Ehrh.,) Ach. (19.) 
 
 PLACODIUM CERINUM, Ach., var., STILLICIDIORIUM, Ach. On mosses. 
 (20.) 
 
 PLACODIUM BOLACINUM, Tuck.! White House Mountain, at an eleva- 
 tion of 13,000 feet, August, (21.) 
 
 LECANORA STRAMINEA, Wahl. A small, infertile fragment. (22.) 
 
 LECANORA MURALIS, (Schreb.,) Schser. (23.) 
 
 LECANORA RUBINA, Ach. (24.) 
 
 LECANORA ?. A very small and imperfect specimen, belonging 
 
 to the section Squamaria and distinguished chiefly by its large spore^, 
 which are from 4 to 8 in the thekes, and measure from .019 to .027 mm. 
 long bv .007-.008 mm. \* ide. I cannot refer it to any described species. 
 (25.) 
 
 LECANORA SUBFUSCA, Ach. (26.) 
 
 LECANORA YARIA, Fr. (27.) 
 
 LECANORA BRUNONIS, Tuck.? White House Mountain, at 13,000 feet 
 altitude, August. The very small fragment seems to belong here, but 
 the spores are at length 4-locular, .015 to .018 mm. long by .004 to .005 
 wide. (28.) 
 
 LECANORA CINEREA, (L.) (29.) 
 
 LECANORA CALCAREA, (L.,) Somf. White House Mountain at 13,000 
 feet altitude, August. The specimens are elegantly emgurate. This 
 form has before occurred, I believe, on this continent only in Greenland. 
 (30.) 
 
 LECANORA CHLOROPHANA, (Wahl.,) Ach. The specimens mostly deal- 
 bate. (31.) 
 
 LECANORA XANTHOPHANA, Kyi. (32.) 
 
 LECANORA CERVINA, (Pers.,) Sonif. (33.) 
 
 EINODINA OREINA, (Ach.,) Mass. (34.) 
 
 RINODINA SOPHODES, (Ach.,) Mass. (35.) 
 
 STEREOCAULON PASCHALE, Laur. ? Infertile. (36.) 
 
SYNOPSIS OF THE FLORA OF COLORADO. 163 
 
 STEEEOCAULON CONDENSATUM, Laur. ? Infertile. (37.) 
 
 CLADONIA PYXIDATA, Fr. (38.) 
 
 CLADONIA FURCATA, Flk., var. RACEMOSA, ib. (39.) 
 
 CLADONIA VERMICULARIS, Ach. Head-waters of Platte Kiver, at 
 10,000 feet altitude. Spermogones and spermatia similar to those de- 
 scribed by Xylander, have occurred to nie in White House Mountain 
 specimens of this plant. (40.) 
 
 LECIDEA CONTIGUA, Fr. White House Mountain, at 13,000 feet alti- 
 tude, August. (41.) 
 
 LECIDEA CONTIGUA. Fr. ?, with smaller apothecia. Mount La Plata, at 
 14,000 feet altitude. (41a.) 
 
 LECIDEA CONFLUENS, Schaer. White House Mountain, at 13,000 feet 
 altitude. (42.) 
 
 LECIDEA ENTEROLEUCA, Fr. On twigs; the thallus lutescent. (43.) 
 
 LECIDEA ATRO-BRUNNEA, (B.C.,) Schaer. Mount La Plata, at 14,000 
 feet altitude. (44.) 
 
 LECIDEA LUGUBRIS, (Sornf.,) Nyl. White House Mountain, at 13,000 
 feet altitude. (45.) 
 
 LECIDEA LAPICIDEA, Ach. A single small specimen. (46.) 
 
 BUELLIA ALBO-ATRA, (Hoffm.,) Nyl. White House Mountain, at 
 13,000 feet altitude. (47.) 
 
 BUELLIA GEOGRAPHIC A, -(L.,) Th. Fr. (48.) 
 
 STAUROTHELE UMBRINA, (Wahl.,) Tuck. A few traces of this lichen 
 occurred on fragments of rocks with other lichens. (49.) 
 
 YERRUC ARIA PYRENOPHORA, Nyl. f A single small specimen. Spores 
 2-locular, .027-.32 mm. long by .012-.14 wide. White House Mountain, 
 at 13,000 feet altitude. (50.) 
 
 YERRUC ARIA ? Thallus hardly any. Apothecia sessile, globose, 
 
 with a depressed artiole; perithecia black, entire 5 paraphyses indistinct. 
 Eeaction with iodine various, red. Spores 2-val., 4-pluri-locular, irregu- 
 larly muriforni, colorless or slightly fusescent, .027-.36 mm. long by 
 .015-.18 wide. The very small quantity of this which occurred is hardly 
 sufficient for its determination. It is perhaps new. (51.) 
 
 YERRUCARIA ? Parasitic on a sterile thallus, which is perhaps 
 that of Buellia epigcea. Apothecia minute, emergent; paraphyses dis- 
 tinct capillary, not colored by iodine. Spores 4-several, acutely ellip- 
 soid, constricted in the middle, 4-locular, submuriforin, colored, .029-.38 
 mm. long by .008-.12 mm. wide. (52.) 
 
 ENDOCOCCUS ERRATICUS, (Mass.,) Nyl. Parasitic on Placodium ele- 
 gans. The internal characteristics appear to agree with this species. 
 Paraphyses deficient. Eeaction with iodine various, red. Thekes ven- 
 tricose, polysporous. Spores 2-locular, colored, .008-.11 mm. long, by 
 .004-.5 mm. wide. Kew to this continent. (53.) 
 
 FUNGI. 
 
 BY CHARLES H. PECK, ESQ. 
 
 AGARICUS LACCATUS, Scop. Pileusthin, convex, sometimes expanded ; 
 even or slightly umbilicate, smooth, or minutely scaly, hygrophanous 
 when moist dull reddish-yellow, or reddish flesh-colored, sometimes stri 
 atulate on the margin, when dry pallid or pale dull ochraceousj lamel 
 Ise broad, rather thick and distant, not decurrent, flesh-colored j stem 
 
164 SYNOPSIS OF THE FLORA OF COLORADO. 
 
 slender, firm, fibrous, stuffed, equal, concolorous. Plant very variable, 
 1-6 inches high ; pileus .5-2 inches broad. Twin-Lake Creek, August. 
 
 AG-ARICUS YELTJTIPES, Curt. Caespitose ; pileus fleshy, thin on the 
 margin, convex, smooth, very viscid, dull yellow with a brownish disk 
 or bright reddish-yellow ; lamella close, rounded behind, slightly at- 
 tached, yellowish ; stem equal or slightly tapering upward, hollow or 
 stuffed, generally velvety and brown, sometimes pale yellow and prim- 
 rose. Plant 1-2 inches high 5 pileus 5-1.5 broad. Twin-Lake Creek, 
 August. 
 
 AGARICUS ILLICITUS, Peck. Pileus fleshy, firm, broadly convex or 
 expanded, smooth, hygrophanous, very dark brown when moist, paler 
 when dry ; lamell* close, broad, tapering outwardly, plane or ventricose, 
 rounded behind, with a very slight decurrent tooth, pale dingy brown ; 
 stem firm, equal, hollow, scabrous, distinctly striate at the top, paler 
 than the pileus. Plant 1.5-2 inches high ; pileus 1-1.5 inches broad. 
 Twin-Lake Creek, August. 
 
 * AGARICUS. 1 Twin-Lake Creek, August. 
 
 *LACTARIUS ? Twin-Lake Creek, August. 
 
 LENZITES SEPIARIA, Fr. Pileus coriaceous, tough, dimidiate, often 
 elongated, zoned, strigose-tomentose, brown, generally paler or yellow- 
 ish on the margin ; lamellae rather thick, slightly branched or anas- 
 tomosing, yellowish, inclining to brown. 
 
 Yar. ft. POROSA. Lamellae abundantly anastomosing and forming 
 pores. Mount of the Holy Cross and Twin-Lake Creek, August. 
 
 DACRYMYCES STILLATUS, STees. Subrotund, convex, often plicate, 
 yellow or orange, color persistent ; spores multiseptate. White House 
 Mountain, August. 
 
 PUCCINIA PORTERI, Peck. (n. sp.) Spots none; sori aniphigeuous, 
 crowded or scattered, rotund, rather small, prominent, brown ; spores 
 oblong or obovate-oblong, constricted in the middle, about .0016 inch 
 long, .0007-.0009 inch broad ; peduncles hyaline, one-half to twice the 
 length of the spore. On leaves of Veronica alpina. Twin Lakes, July. 
 The sori, which are about .018 inch in diameter, occupy the whole under 
 surface of the leaf, being so closely placed as to appear almost confluent. 
 In some instances they appear suffused by a cinereous hue, due, perhaps, 
 to the germination of the spores. The sori on the upper surface of the 
 leaves are scattered and comparatively few. The species seems to be 
 related to P. brunnea, Billings, from which it may be separated by its 
 amphigenous habit and hyaline peduncles. Dedicated by its discoverer, 
 John M. Coulter, to Prof. T. 0. Porter. 
 
 PEZIZA VULCANALIS, Peck. Hay deli's 6th Arm. Rep., 1872. Cup fleshy, 
 funnel-form, stipitate, crenate on the margin, smooth when fresh, rugu- 
 lose and more or less brown when dry; hymeuium pale orange; stem 
 slender, solid, smooth, brown ; asci cylindrical ; paraphyses slightly thick- 
 ened at the tips ; spores elliptical, smooth, 0.0004-0.0006 inch long, 0.0003 
 inch broad. Plant, 6-10 lines high ; cup 4-6 lines broad. Ground. 
 Twin-Lake Creek, August. 
 
 PEZIZA SCUTELLATA, L. Cups scattered or gregarious, sessile, shal- 
 low or plane, vermillion, externally paler and hispid, with straight brown 
 or black hairs; asci cylindrical; paraphyses clavate at the tips; spores 
 elliptical, .0008 inch long. Plant usually about one-fourth of an inch in 
 diameter, the hymenium fading in drying. Twin-Lake Creek, August. 
 
 'Not in determinable condition. 
 
INDEX, 
 
 Page - 
 
 Abies 
 
 Douglasii, Lindl 1*31 
 
 Engelraanni, Parry 130 
 
 grandis, Lindl 131 
 
 Menziesii, Lindl 131 
 
 Abronia, Juss 116 
 
 cycloptera, Gray 116 
 
 f ragrans, Nutt 116 
 
 Abutilon, Tourn 16 
 
 parvulum, Gray 16 
 
 Acer 
 
 glabmm, Torr 18 
 
 tripartitum, Nutt 18 
 
 Acerates 
 
 auriculata, Engelm 114 
 
 decmnbens, Decne 114 
 
 viridiflora, Ell 114 
 
 Achillea 
 
 Millef olium, L 77 
 
 Aconitum 
 
 nasutum, Fisch 5 
 
 Actsea 
 
 aryiita. Xutt 5 
 
 spicata, L 5 
 
 Actinella 
 
 acaulis, Xutt 75 
 
 grandiflora, T. & G 76 
 
 Richardsonii, Nutt 76 
 
 scaposa, Nutt 76 
 
 Adoxa, L 53 
 
 Moschatelliua, L 53 
 
 Agaricns 
 
 illieitus, Peck 163 
 
 laccatus, Scop 164 
 
 velutinus, Curtis 164 
 
 Agrimonia 
 
 Eupatoria, L 34 
 
 Agrostis 
 
 canina, L 143 
 
 exarata, Trin 143 
 
 scabra, Willd 143 
 
 vulgaris, With 143 
 
 Aira 
 
 csespitosa, L 151 
 
 danthonioides, Trin 152 
 
 ALISMACE.E 132 
 
 Allionia, L 116 
 
 incaruata, L 116 
 
 Alliurn 
 
 cernuum. Roth 135 
 
 reticulatum, Fras 135 
 
 Allosorus 
 
 acrostichoides, Spring 153 
 
 Alnus 
 
 incana, Willd 127 
 
 viridis, Ait 127 
 
 Alopecurus 
 
 alpinus, Smith 142 ' 
 
 aristulatus, MX 142 ! 
 
 ., . 
 Alsme 
 
 biflora, Wahl 14 
 
 AMARANTACEJE 119 
 
 Amarantus 
 
 albus, L 119 
 
 retroflexus, L 119 
 
 AMARYLLJDACE^: 133 
 
 Amblyodon 
 
 dealbatus, Pal. Beany 159 
 
 Ambrosia 
 
 psilostachya. DC 69 
 
 trifida, L...'. 69 
 
 Amelanchier 
 
 Canadensis, T. & G 33 
 
 Amianthium 
 
 XuttaUH, Gray 133 
 
 Amorpha 
 
 canescens, Nutt 23 
 
 fruticosa, Nutt 23 
 
 Ampelopsis 
 
 quinquef olia, MX 18 
 
 Anacalypta 
 
 latifolia, Schwsegr 156 
 
 AXACARDIACEJE 19 
 
 Andropogon 
 
 argenteus, DC 152 
 
 furcatus, Muhl 152 
 
 scoparius, MX: 152 
 
 Androsace 
 
 carinata, Torr 90 
 
 Chamaejasme, Willd 90 
 
 filiformis, Retz 89 
 
 occidentalis, Nutt ^> 
 
 septentriouaUs, L 89 
 
 Anemone 
 
 Caroliniana, L 2 
 
 cylindrica, Gray 2 
 
 mnltifida, DC 2 
 
 narcissiflora, L 2 
 
 parviflora, MX 2 
 
 patens, L 2 
 
 Pennsylvania, L 2 
 
 Antennaria 
 
 alpina, Gsertn '. 79 
 
 Carpathica, R. Br 
 
 dioica, Gsertn 79 
 
 Aniepliora 
 
 axiUiflora, Steud 147 
 
 Aplwra 
 
 humilia, Engelm 126 
 
 Aphyllon 
 
 f asciculatum, T. & G 90 
 
 imifloruin. T. & G 90 
 
 APOCYXACE.E 113 
 
 Apocinum; 
 
 androssemif olium, L 113 
 
 cannabinum, L 113 
 
 Aplopappus, Cass 65 
 
 croceus, Gray 66 
 
166 
 
 INDEX. 
 
 Page. 
 
 Aplopappus Continued. 
 
 Fremontii, Gray 66 
 
 inuloides, T. & G 66 
 
 Lyallii,Gray 66 
 
 Macronema, Gray 66 
 
 Parryi, Gray 66 
 
 pygmseus, Gray 66 
 
 rubiginosus, T. & G 65 
 
 spinulosus, DC 65 
 
 Aquilegia 
 
 brevistyla, Hook 4 
 
 caerulea, Torr 4 
 
 Canadensis, L 4 
 
 chrysantha, Gray 4 
 
 leptocera, Nutt 4 
 
 vulgaris, L 4 
 
 Arabia 
 
 Drummondii, Gray 6 
 
 hirsuta, Scop 6 
 
 retrof racta, Grah 6 
 
 ARALIACEJS 53 
 
 Archangelica 
 
 Gmelini, DC 52 
 
 Arctostaphylos 
 
 Uva-ursi, Spreng 88 
 
 Arenaria 
 
 alpina, L 14 
 
 arctica, Stev 14 
 
 congesta, Nutt 13 
 
 Fendleri, Gray 13 
 
 lateriflora, L 14 
 
 verna, L 14 
 
 Arceuthobium, Bieb 124 
 
 Americanum, Engelm 124 
 
 robustum, Engelm 124 
 
 Archemora 
 
 Fendleri, Gray 52 
 
 Argemone 
 
 Mexicana, L 6 
 
 Argyrothamnia, Miill 126 
 
 humilis, Miill 126 
 
 Aristida 
 
 9 oligantha, MX 146 
 
 purpurea, Nutt 146 
 
 Arnica 
 
 angustif olia, "VVahl 79 
 
 Chamissonis, Less 79 
 
 cordifolia, Hook 80 
 
 latif olia, Bong 80 
 
 mollis, Hook 80 
 
 Artemisia 
 
 arctica, Less 78 
 
 borealis, Pall 78 
 
 Canadensis, MX 78 
 
 discolor, Dougl 78 
 
 dracunculoides 78 
 
 nlif olia, Torr 78 
 
 frigida, Willd 78 
 
 Ludoviciana, Nutt 78 
 
 Parry i , Gray 78 
 
 scopulorum, Gray 78 
 
 tridentata, Pursh 78 
 
 ASCLEPIADACE^E 113 
 
 Asclepias 
 
 brachy stepliana, Eng 114 
 
 Jamesii, Torr 114 
 
 ovalifolia, Decne 114 
 
 speciosa, Torr 113 
 
 tuberosa, L. 114 
 
 verticillata, L. 114 
 
 Page. 
 
 Aspidium 
 
 Filix-mas, S wz 154 
 
 Asplenium 
 
 ebeneum, Ait 154 
 
 Filix-fceniina, Bernli 154 
 
 septentrionale, L 154 
 
 Trichomanes, L 154 
 
 Aster 
 
 adscendens, Lindl 56 
 
 aestivus, Ait 56 
 
 angustus, T. & G 58 
 
 carneus, Nees 56 
 
 elegans, T. & G 57 
 
 Engelmannij Gray 57 
 
 ericoides, L 56 
 
 f alcatus, Lindl 56 
 
 Fendteri, Gray 56 
 
 glacialis, Nutt 57 
 
 glaucus, T.&G 58 
 
 laevis, L 56 
 
 multifl orus, Ait 56 
 
 Nuttallii,T. & G 56 
 
 oblongif olius, Nutt 56 
 
 ptarmicoides, T. & G 58 
 
 salsuginosus, Richards 57 
 
 Astragalus 
 
 aboriginum, Richards 25 
 
 adsurgetis, Pall 23 
 
 alpinus, L 26 
 
 bisulcatus, Gray 28 
 
 Brandegei, Porter 24 
 
 campestris, Gray 29 
 
 Canadensis, L 23 
 
 caryocarpus, Ker 23 
 
 cyaneus, Gray 27 
 
 decumbens, Gray 29 
 
 Drummondii, Dougl 24 
 
 Fendleri, Gray 28 
 
 Jilif olius, Gray 27 
 
 flexuosus, Dougl 28 
 
 f rigidus, Gray 27 
 
 glabriusculus, Gray 26 
 
 gracilis, Nutt 25 
 
 gradlis, Torr 25 
 
 Hallii, Gray 28 
 
 hypoglottis, L 24 
 
 iodaiithus, Watson 25 
 
 junceus, Gray 29 
 
 Kentrophyta, Gray 30 
 
 leptaleus, Gray 28 
 
 lonchocarpus, T. & G 27 
 
 lotiflorus, Hook 26 
 
 Mexicanus, DC 23 
 
 microlobus, Gray 25 
 
 Missouriensis, Nutt 26 
 
 mollissinms, Torr 23 
 
 rnultiflorus, Gray 29 
 
 nigresccns, Gray 29 
 
 oroboides, Hornem 26 
 
 Parryi, Gray 27 
 
 pectinatus, Dougl 28 
 
 pictus, Gray 27 
 
 Plattensis, Nutt 23 
 
 pubentissimus, T. & G 26 
 
 racemosus, Pursh 25 
 
 scopulorum, Porter 24 
 
 sericoleucus, Gray 30 
 
 Shortianns, Nutt 27 
 
 simplicif olius, Gray 29 
 
 sparsifloras, Gray 26 
 
INDEX. 
 
 167 
 
 Page. 
 
 Astragalus Continued. 
 
 8triatu8, Nutt 23 
 
 tegetarius, Watson 165 
 
 tridactylicus, Gray 30 
 
 tridorus, Gray 27 
 
 Atriplex 
 
 patula, L 117 
 
 Aulacomnion 
 
 palustre, Sckwsegr 159 
 
 Arena 
 
 striata, MX 151 
 
 Bacckaris 
 
 salicina. T. & G 67 
 
 Bakia, Lag 75 
 
 oppositif olia, T. & G 75 
 
 Barbula 
 
 niucrouif olia, Sdiwaegr 156 
 
 rigida, Sckultz 156 
 
 ruralis, Hedw 156 
 
 subulata, Brid 156 
 
 Bartraniia 
 
 fontana, Brid 159 
 
 itkypky lla, Brid 159 
 
 Beckniaunia, Host 152 
 
 erucaeformis, Host 152 
 
 BERBERIDACE.E 5 
 
 Berberis 
 
 Aquifoliuni, Pursk 5 
 
 Betula 
 
 glandulosa, MX 127 
 
 occidentalis, Hook 127 
 
 BETULACE.E 127 
 
 Blitum 
 
 capitaturu, L 117 
 
 Bidens 
 
 bipinnata, L 73 
 
 ckrysantkenioides, MX 73 
 
 frondosa, L 73 
 
 tenuiseeta, Gray 73 
 
 Bigelovia, DC 63 
 
 Bigelovii, Gray 64 
 
 depressa. Gray 64 
 
 Douglasii, Gray 64 
 
 graveolens, Gray 64 
 
 Howardii, Gray 63 
 
 Parryi, Gray 64 
 
 BORRAGIXACEJB 100 
 
 Botryckium 
 
 Virginicum, S wz 154 
 
 Bouteloua 
 
 curtipendula, Gray 147 
 
 kirsuta, Lag 147 
 
 oligostackya, Torr 147 
 
 Brickellia, Ell 55 
 
 Californica, Gray 55 
 
 grandiflora, Nutt 55 
 
 Brizopyruni 
 
 spicatum, Hook 150 
 
 Bromus 
 
 ciliatus, L 151 
 
 Kalmii, Gray 150 
 
 Briinella 
 
 vulgaris, L 100 
 
 Bryum 
 
 alpinum, L 159 
 
 argenteum, L 159 
 
 bimuin, Scki'eb 156 
 
 csespiticium, L 159 
 
 cirrkatum, Hoppe & Hornsck 15S 
 
 Page. 
 
 Bryum Continued. 
 
 intermedium, W. & M 158 
 
 Muklenbeckii, Br. Eur 158 
 
 pendulum (Hornsck.), Sckp 158 
 
 pseudo-triquetrum, Hedw 159 
 
 roseum, Dill 159 
 
 Buckloe, Engelm 147 
 
 dactyloides, Eugekn 147 
 
 Buellia 
 
 albo-atra (Hofl&n. ), Nyl 163 
 
 geograpkica (L.), Tk. Fr 163 
 
 CACTACE.E 47 
 
 Calamagrostis 
 
 Canadensis, Beauv 145 
 
 longifolia, Torr 145 
 
 stricta, Trim 145 
 
 sylvatica, DC 145 
 
 Calamintka 
 
 Clinopodium, Bentk 99 
 
 Calandrinia, H. & B 14 
 
 pygmsea, Gray , 14 
 
 Callirkoe 
 
 involucrata, Gray 15 
 
 Calockortus, Pursk 134 
 
 Gnnnisoni, Watson 134 
 
 venustus, Bentk 134 
 
 Caltka 
 
 leptosepala, DC 4 
 
 Calypso 
 
 borealis, Salisb 133 
 
 Calystegia 
 
 sepium, R. Br 109 
 
 Camelina 
 
 sativa,Crantz 10 
 
 j Campanula 
 
 apariuoides, Pursk 88 
 
 Langsdorfiiana, Fisck 88 
 
 rot imdif olia, L 87 
 
 uniflora, L 88 
 
 CAMPAXULACE.E 87 
 
 Campylopus 
 
 frigidus, Lesqx 155 
 
 Hallii, Lesqx 155 
 
 CAPPARIDACE.E 10 
 
 CAPRIFOLIACEJC 53 
 
 Cardamiue 
 
 cordifolia, Gray 6 
 
 kirsuta, L 6 
 
 Carex 
 
 artusta.Boott 141 
 
 affinis, R. Br 139 
 
 alpina, L 142 
 
 atkrostackya, Olney 140 
 
 atrata, L - 141 
 
 aurea, Nutt 142 
 
 Backii, Boott 139 
 
 Bonplandii,Ktk 140 
 
 Buxbauuiii, Wakl 141 
 
 canescens, L 140 
 
 capillaris, L 142 
 
 coiijuncta, Boott 139 
 
 Deweyana, Sckweiii 140 
 
 disticlia, Huds 139 
 
 Douglasii, Boott 139 
 
 f estiva, Dew 140 
 
 filifolia, Nutt 139 
 
 Gayana, Dew 140 
 
 Geyeri. Boott 142 
 
 Hallii, 'Olney 139 
 
168 
 
 INDEX. 
 
 Page. 
 
 Carex Continued. 
 
 Jamesii, Torr 141 
 
 lanuginosa, MX 142 
 
 leporina, L 140 
 
 limula, Fries 141 
 
 longirostris, Torr 142 
 
 marcida, Boott 139 
 
 muricata, L 139 
 
 NebrasJcemis, Dew 141 
 
 nigricans, E. Meyer 138 
 
 obtusata, Lilj 139 
 
 Parryana, Boott 139 
 
 pauciflora, Lightf 139 
 
 Pennsylvania, Lam 142 
 
 petasata, Dew - 139 
 
 phyllostachya, Dew 142 
 
 polytrichoides, Muhl 139 
 
 Pyrenaica, Wahl 138 
 
 rigida, Good 141 
 
 Rossii, Boott 142 
 
 scirpoidea, MX 139 
 
 siccata, Dew 139 
 
 stellulata, L 140 
 
 etenophylla, Wahl 140 
 
 straminea, Schk 141 
 
 tenella,Schk 140 
 
 tenera, Dew 141 
 
 Torreyi, Tuckerm 142 
 
 CAYOPHYLLCE.E 12 
 
 Cassia 
 
 Chamsecrista, L 33 
 
 Castilleia 
 
 brevifl ora, Gray 96 
 
 Integra, Gray 96 
 
 linarisef olia, Benth 95 
 
 miniata, Dougl 96 
 
 pallida, Kth 96 
 
 parviflora. Bong 96 
 
 Catabrosa, Beauv 149 
 
 aqnatica, Beauv 149 
 
 Ceanotlius 
 
 Ameriecams. L 18 
 
 Fendleri, Gray 18 
 
 ovalis, Bigelow 18 
 
 ovatus, Desf 18 
 
 velutinus, Dougl 18 
 
 CELASTRIXEJE 18 
 
 Celtis 
 
 occidentalis, L 127 
 
 Ceiichrus 
 tribuloides, L 
 
 Cerastiura 
 
 arvense, L 13 
 
 vulgatum, L 13 
 
 Ceratodon 
 
 purpureus, Brid 156 
 
 Cercocarpus, H. B. K 34 
 
 parvif olius, Nutt 34 
 
 Cereus, Haw 48 
 
 conoideus, Eng. & Big 49 
 
 Fendleri, Eng 48 
 
 gonacanthus, Eng. & Big 48 
 
 phceniceus, Eng 49 
 
 viridiftorus, Eng 48 
 
 Cetraria 
 
 ' Islandica, Ach 161 
 
 Chsenactis, DC 74 
 
 ackillecefolia, H. & A 74 
 
 Douglasii, H. & A 74 
 
 Page. 
 
 Chamferhodos, Bunge 35 
 
 erecta, Bunge 35 
 
 Cheilanthes 
 
 Eatoni, Baker 153 
 
 Fendleri, Hook 153 
 
 lanuginosa, Nutt 153 
 
 tomentosa, Link 153 
 
 CHENOPODIACE.E 116 
 
 Chenopodina 
 
 depressa, Moq 118 
 
 Chenopodium 
 
 album, L 116 
 
 Feudleri, Watson 117 
 
 glaucum, L 117 
 
 hybridum, L 117 
 
 Chionophila, Benth 94 
 
 Jamesii, Benth 94 
 
 Chrysopsis 
 
 villosa, Nutt 67 
 
 Chrysosplenium 
 
 alternifolium, L ; 40 
 
 Chrysothamnus 
 
 depressus, Nutt 64 
 
 Cicuta 
 
 maculata, L 49 
 
 Circaea 
 
 alpina, L 46 
 
 Cirsium 
 
 Drummondii, T. & G 84 
 
 edule,N\itt 84 
 
 eriocephalum, Gray 84 
 
 foliosurn, DC 84 
 
 ochrocentrurn, Gray 85 
 
 Cladonia 
 
 furcata, Flk 163 
 
 pyxidata, Fr 163 
 
 vermicularis, Ach 163 
 
 Claytonia 
 
 arctica, Adams 15 
 
 Caroliniana, MX 14 
 
 Chamissonis, Esch. & Led 15 
 
 Clematis 
 
 alpina, L 1 
 
 Douglasii, Hook 1 
 
 ligusticifolia, Nutt 1 
 
 Scottii, Porter 1 
 
 Cleome, L 10 
 
 integrifolia, T. & G 10 
 
 Cleoinella, DC 11 
 
 angustifolia, Torr 11 
 
 tenuifplia, Torr 11 
 
 Climacmm 
 
 dendroides, Web 160 
 
 Collema 
 
 pulposum, Ach 162 
 
 Collinsia 
 
 parviflora, Dougl 90 
 
 Collomia, Nutt 105 
 
 gracilis, Dougl 106 
 
 linearis, Nutt 105 
 
 longifl ora, Gray 106 
 
 Comandra 
 
 pallida, DC 124 
 
 Commelyna 
 
 Virginica, L 138 
 
 COMMELYXACE.E 138 
 
 COMPOSITE 54 
 
 CONIFERvE 129 
 
 CONVOLVULACE^: . . 108 
 
INDEX. 
 
 169 
 
 Page. 
 
 Convolvulus 
 
 hattatw, Nutt 109 
 
 lobatus, Eng. & Gray 109 
 
 JVnttaHii,Toir 109 
 
 Conyza, L 67 
 
 Coulteri, Gray 67 
 
 subdecurrenSj Gray 67 
 
 Corallorhiza 
 
 multiflora, Nutt 133 
 
 Coreopsis 
 
 in volucrata, Nutt 72 
 
 tinctoria, Nutt 72 
 
 Corispermum 
 
 hyssopif olium, L 117 
 
 CORXACE.E \ 53 
 
 Conine 
 
 Canadensis, L 53 
 
 pubescens, Nutt 53 
 
 sericea, L 53 
 
 stolonifera, MX 53 
 
 Corylus 
 
 rostrata, Ait 127 
 
 Cosmidium, T. & G 72 
 
 CRASSULACE^E 42 
 
 Crepis, L 86 
 
 acuminata, Nutt 86 
 
 ambigua. Gray 85 
 
 nana, Kicliards 86 
 
 occideutalis, T. & G 86 
 
 runcinata, T. & G 86 
 
 Croton 
 
 m u ricatus, Nutt 126 
 
 Texensis, Mull 126 
 
 CRUCIFER.E 6 
 
 Cryptogramme 
 
 acrostichoides, R. Br 153 
 
 Cucurbita 
 
 perennis, Gray 49 
 
 CUCURBITACEJE 49 
 
 CUPULIFER.E 127 
 
 Cuscuta 
 
 arvensis, Beyrich 109 
 
 cuspidata, Eng 109 
 
 decora, Choisy & Eng 109 
 
 Grouovii, Willd 109 
 
 Cymopterus, Raf 50 
 
 alpinus, Gray 50 
 
 auisatus, Gray 50 
 
 glomeratus, DC 50 
 
 montamis, Nutt 50 
 
 Cycloloma 
 
 platyphylluni, Moq 116 
 
 Cy nap him 
 
 apiifoUum, Nutt 51 
 
 Cynthia 
 
 Virginica, Don 85 
 
 CYPERACE.E 138 
 
 Cyperus 
 
 inflexus, Muhl 138 
 
 Schweinit^ii, Torr 138 
 
 Cypripedium 
 
 parviflorum, Salisb 133 
 
 pubescens, Willd 133 
 
 Cyrtorrhynca 
 
 ranunculina, Nutt 3 
 
 Cystopteris 
 
 fragilis, Bernh 154 
 
 Dactylina 
 
 niadrepif orniis, Wulf 161 
 
 Page. 
 
 Dacrymyces 
 stillatus, Nees 164 
 
 Dalea 
 
 alopecuroides, Willd 23 
 
 Jamesii, Torr 23 
 
 laxinora, Gray 22 
 
 nana, Torr 22 
 
 Danthonia 
 sericea, Nutt 151 
 
 Daucns 
 Carota,L 53 
 
 Delphinium 
 
 azureum, MX 5 
 
 elatum, L 4 
 
 Menziesii, DC 5 
 
 scopulorum, Gray 5 
 
 Desmatodon 
 
 latifolius, Br. Eur 156 
 
 Lauren, Schultz 156 
 
 sistylius, Br. Eur 156 
 
 Diaperia, Nutt 68 
 
 prolifera, Nutt 68 
 
 Dichelyma 
 capiilaceum, Br. Eur 160 
 
 Dicranum 
 
 f tiscescens, Turn 155 
 
 gracilescens, W. & M 155 
 
 Muhlenbeckii, Br. Eur 155 
 
 pellucidum, Hedw 155 
 
 rhabdocarpon, Sulliv 155 
 
 varium, Hedw 155 
 
 virens, Hedw 155 
 
 Didymodon 
 riibellus, Br. Eur 156 
 
 Dieteria 
 
 asteroides, Torr 59 
 
 coronopifolia, Nutt 59 
 
 Dissodon 
 
 Frcelichianus, Frcel 158 
 
 Hornschuchii, Grev. & Arn 158 
 
 Distichium 
 
 capiilaceum, Br. Eur 156 
 
 inclinatum, Br. Eur 156 
 
 Dodecatheon 
 Meadia,L 90 
 
 Draba 
 
 alpina, L 
 
 aurea, Vahl 
 
 crassif olia, Grah 
 
 cuneif olia, Nutt 
 
 streptocarpa, Gray 
 
 Dracocephalnm 
 parviflorum, Benth 100 
 
 Dryas 
 octopetala, L 34 
 
 Dysodia 
 
 chry santhemoides, Lag 73 
 
 Echinocactus, Link & Otto 48 
 
 Simpsoni, Engelin 48 
 
 Echinocystis 
 
 lobata,T.&G 49 
 
 Echiiiosperniuni 
 
 deflexum, Lehm 103 
 
 floribundum, Lehm 103 
 
 Redowskii, Lehm 103 
 
 ELATIXACE.E 15 
 
 Elatine 
 Americana, Arn 15 
 
 ELEAGXACE^E 124 
 
170 
 
 INDEX. 
 
 Page. 
 
 EleDcharis 
 
 acicularia, Br 138 
 
 compressa, Sulliv 138 
 
 olivacea, Torr 138 
 
 palustris, R. Br 138 
 
 Ellisia 
 
 Nyctelea, L 103 
 
 Elymus: 
 
 Canadensis, L 151 
 
 condensatus, Presl 1 . 151 
 
 Sitanion, Schult 151 
 
 Elyna, Schrad 138 
 
 spicata, Schrad 138 
 
 Encalypta 
 
 apophysata, N. &H 158 
 
 commutata, N. & H 157 
 
 rhabdocarpa, ScliwsBgr 157 
 
 streptocarpa, Hedw 157 
 
 vulgaris, Hedw 157 
 
 Endococcus 
 
 erraticus (Mass. ), Nyl 163 
 
 Epilobium 
 
 alpinum, L 43 
 
 angustif olinm, L 43 
 
 latifolium, L 43 
 
 palustre, L 43 
 
 paniculatum, L 43 
 
 tetragonum, L 43 
 
 EQUISETACE.E 152 
 
 Equisetum 
 
 arvense, L 152 
 
 leevigatum, A. Br 153 
 
 pratense, Ehrli 152 
 
 variegatum, Schleich 153 
 
 Eragrostis 
 
 Purshii, Bernh 150 
 
 ERICACEAE 88 
 
 Ericameria, Nutt 65 
 
 Erigeron 
 
 acre,L 60 
 
 armerisef olium, Turcz 60 
 
 Bellidiastruin, Nutt 60 
 
 Canadense, L 59 
 
 canuin, Gray 62 
 
 compositum, Pursh 59 
 
 Coulteri, Porter 61 
 
 divaricatuin, MX 59 
 
 divergens, T. & G 61 
 
 glabellum, Nutt 61 
 
 glandulosum, Porter 60 
 
 grandiflorum, Hook 60 
 
 macranthum, Nutt 61 
 
 pumilum, Nutt 61 
 
 trifidum, Hook 60 
 
 uniflorum, L 60 
 
 ursimim Eaton 60 
 
 Eriocoma, Nutt 146 
 
 cuspidata, Nutt 146 
 
 Eriogonum, MX 119 
 
 acaule, Nutt 120 
 
 alatum, Torr 119 
 
 annuum, Nutt 122 
 
 brevicaule, Nutt 122 
 
 cernuum, Nutt 122 
 
 e#MS?m,Nutt 121 
 
 flavum, Nutt 120 
 
 Gordon!, Benth 122 
 
 heracleoides, Nutt 120 
 
 Jamesii, Benth 120 
 
 Page. 
 
 Eriogonum, MX Continued. 
 
 lachnogynum, Torr 121 
 
 niicrothecum, Nutt 121 
 
 multiceps, Ker 121 
 
 ovalif olium, Nutt 121 
 
 pauciflorum, Pursh 121 
 
 tenellum, Torr 122 
 
 umbellatum, Torr 120 
 
 Eriophorum 
 
 polystachyon, L 138 
 
 Eritrichium, Schrad 101 
 
 angustif olium, Torr 102 
 
 crassisepalum, Torr 102 
 
 glomeratum, DC 102 
 
 Jamesii Torr 103 
 
 villosuni, DC 101 
 
 virgatu m, Porter 102 
 
 Erysimum 
 
 asperum, DC 8 
 
 cheirauthoides, L 8 
 
 Erythronium 
 
 grandiflorum, Pursh 134 
 
 Euchroma 
 
 Ireviflora, Nutt 96 
 
 Eupatorium 
 
 ageratifolium, DC 55 
 
 Berlandieri, DC 55 
 
 purpureum, L 55 
 
 Euphorbia 
 
 dictyosperma, Engelm 126 
 
 Fendleri,T. & G 125 
 
 glyptosperma, Engelm 125 
 
 hexagona, Nutt 125 
 
 lata, Engelm 124 
 
 inaculata, L 125 
 
 marginata, Pursh 125 
 
 inontana, Engelm 126 
 
 obtusata, Pursh 126 
 
 petaloidea, Engelm 125. 
 
 revoluta, Engelm 125 
 
 EUPHORBIACE^; 124 
 
 Eurotia, Adams 118 
 
 lanata, Moq 118 
 
 Eutoca 
 
 sericea, Grah 103 
 
 Evolvulus 
 
 argenteus, Pursh 109 
 
 Fallugia, Eudl 35 
 
 paradoxa, Torr 35 
 
 Festuca 
 
 brevifolia, Br 150 
 
 ovina, L 150 
 
 FILICES 153 
 
 Fontinalis 
 
 antipyretica, L 160 
 
 Neo-Mexicana, S. & L 160 
 
 Fragaria 
 
 vesca, L ' 35 
 
 Virginiana, Ehrh 35 
 
 Frankenia, L 12 
 
 Jamesii, Torr 12 
 
 FRANKENIACE.E 12 
 
 Franseria, Cav 69 
 
 discolor, Nutt 69 
 
 Hookeriana, Nutt 69 
 
 tenuif olia, Gray 69 
 
 tomentosa, Gray 69 
 
 Frasera 
 
 speciosa, Dougl 113 
 
INDEX. 
 
 171 
 
 Fremont ia 
 
 Page. 
 118 
 
 6 
 
 FUMARIACEJE ..................... 
 
 Fun aria 
 
 hybernica, Hook ................ 158 
 
 hygrometrica. Hedw ............ 158 
 
 FUNGI ............................ 163 
 
 Gaillardia, Foug... ............... 73 
 
 cristata, Pursh .................. 73 
 
 pinnatifida, Torr ................ 73 
 
 pulchella, Foug ........ . ........ 73 
 
 Galium 
 
 Aparine, L ...................... 54 
 
 asperrimum, Gray ............... 54 
 
 boreale, L ....................... 54 
 
 trifidurn, L ..................... 54 
 
 triflorum, MX ......... . ......... 54 
 
 Gaultheria 
 
 Myrsinitis, Hook ................ 88 
 
 Gaura 
 
 coccinea, Nutt .................. 46 
 
 parviflora, Dougl ............... 46 
 
 Gayophytum, Juss ................. 44 
 
 racemosum, T. & G .............. 44 
 
 ramosissimum, T. & G .......... 44 
 
 Gentiana 
 
 acuta, MX ....................... Ill 
 
 affinis, Smith ................... 112 
 
 Ainarella, L ..................... Ill 
 
 barbellata, Engelm .............. Ill 
 
 detonsa, Fries ................... Ill 
 
 frigida, Haenke ................. 112 
 
 heterosepala, Engehu... ......... Ill 
 
 humilis, Stev ................... 112 
 
 Parryi, Engelm ................. 112 
 
 prostrata, Haenke ............... 112 
 
 tenella, Fries .................... Ill 
 
 GENTIANACE^E .................... Ill 
 
 GERANIACEJE ..................... 17 
 
 Geranium 
 
 albiflorum, Hook ................. 17 
 
 Fremontii, Torr ................. 17 
 
 Richardsouii, F. & M ............ 17 
 
 Geum 
 
 macrophyllum, Willd ............ 35 
 
 Rossii, Seringe .................. 35 
 
 strictum, Ait .................... 35 
 
 triflorum, Pursh ................. 35 
 
 Gerardia 
 
 tenuifolia, Vahl ................. 95 
 
 Gilia, Ruiz & Pav ................ 106 
 
 aggregata, Spreng .............. 107 
 
 congesta, Hook ................. 107 
 
 inconspicua, Dougl .............. 108 
 
 minima, Gray ................... 107 
 
 nudicaulis, Gray ................ 106 
 
 Nuttallii, Gray .................. 106 
 
 pinnatifida, Nutt ................ 107 
 
 pungens, Benth ................. 106 
 
 spicata,Nutt .................... 107 
 
 Glaux 
 
 maritima, L .......... ............ 90 
 
 Glyceria 
 
 aquatic a, Smith ................. 149 
 
 airoides, Thurb ........... ...... 149 
 
 distans, Wahl ................... 149 
 
 pauciflora, Presl ................ 149 
 
 Glycyrrhiza 
 
 lepidota, Xutt ................... 31 
 
 Page. 
 Gnaphalium 
 
 decurrens, Ives 79 
 
 luteo-album, L 78 
 
 Sprengelii, H. &A 78 
 
 strictum, Gray 79 
 
 Goodyera 
 
 Menziesii, Lindl 132 
 
 GRAMIXE.E 142 
 
 Graphephorum 
 
 flexuosum, Thurb 148 
 
 Gratiola 
 
 Virginiana,L 95 
 
 Grimmia 
 
 apocarpa, Hedw 156 
 
 calyptrata, Hook 157 
 
 conferta, Funk 156 
 
 leucophsea, Grev 157 
 
 ovata, W. &M 157 
 
 plagiopodia, Hedw 157 
 
 trichophylla, Grev 157 
 
 Grindelia, Willd 67 
 
 squarrosa, Dunal 67 
 
 Gutierrezia, Lag 62 
 
 Euthamise, T. & G 62 
 
 Gymnostomum 
 
 rupestre, Schwaegr 155 
 
 Habenaria 
 
 dilatata, Gray 132 
 
 hyperborea, Gray 132 
 
 obtusata, Lindl 132 
 
 HALORAGE.E 43 
 
 Hedeoma 
 
 Drummondii, Benth 99 
 
 hirta, Nutt 
 
 hispida, Pursh 
 
 piperita, Benth 99 
 
 Hedwigia 
 
 ciliata, Ehrh 157 
 
 Hedysarum 
 
 Mackenzii, Richards 31 
 
 Helenium 
 
 autumnale, L 76 
 
 Hoopesii, Gray 76 
 
 Helianthella, T. & G 
 
 Parryi, Gray 
 
 uniflora, T. &G 71 
 
 Helianthus 
 
 giganteus, L 
 
 lenticularis, Dougl 
 
 orgyalis,DC 71 
 
 petiolaris, Nutt 
 
 pumilus, Nutt 
 
 rigidus, Desf 
 
 Heliomeris, Nutt 
 
 multiflora, Nutt 72 
 
 Heliopsis 
 
 Isevis, Pers 70 
 
 Heliotropium 
 
 convolvulaceum, Gray 
 
 Curassavicum, L 103 
 
 Hemicarpha 
 
 subsquarf osa, Nees 
 
 Heracleum 
 
 lanatum, MX 
 
 I Hesperis 
 
 Pallasii,T.&G 9 
 
 Heuchera 
 
 bracteata, Seringe 
 
 Hallii, Gray 41 
 
172 
 
 INDEX. 
 
 Page. 
 
 Heuchera Continued. 
 
 parvifolia, Nutt 40 
 
 eracium 
 
 albiflorum, Hook 85 
 
 Fendleri, Schultz 85 
 
 triste, Willd 85 
 
 Hierochloa 
 
 borealis, R. & S 152 
 
 Hippuris 
 
 vulgaris, L 43 
 
 Hoffmanseggia, Cav 
 
 drepanocarpa, Gray 33 
 
 Jamesii, T. &G 33 
 
 Homalobus 
 
 decunibens, Nutt 29 
 
 Hordeum 
 
 jubatum, L 151 
 
 pratense, Huds 151 
 
 Hosackia, Dougl 
 
 Purshiana, Benth 21 
 
 Humulus 
 
 Lupulus, L 127 
 
 Hutchinsia 
 
 calycina, Desv... 8 
 
 HYDROPHYLLACE.E 103 
 
 Hydrophyllum 
 
 Virginicum, L 103 
 
 Hymenopappus 
 
 tenuif olius, Pursh 75 
 
 HYPERICACE.E 15 
 
 Hypericum 
 
 Scouleri, Hook 15 
 
 Hypoxys 
 
 juncea, Smith 133 
 
 Hypnum 
 
 aduncuin, Hedw 161 
 
 albicans, Neck 160 
 
 campestre, Br. & Sch 160 
 
 collinum, Schp 160 
 
 cupressif orme, Hedw 161 
 
 diversif olium, Br. Eur 160 
 
 eugyrium Schp 161 
 
 filicinum, L 161 
 
 fluitans, Dill 161 
 
 giganteum, Schp 161 
 
 hispidulum, Brid 161 
 
 imponens, Hedw 161 
 
 ]setum, Brid 160 
 
 laetum, Schp 160 
 
 molluscum, Hedw 161 
 
 nitens, Schreb 161 
 
 nitidulum, Wahl 160 
 
 orthocladon, Beauv 161 
 
 pallescens, Schp 161 
 
 paludosum, Sulliv 160 
 
 radicale, Brid 161 
 
 reptile, MX 161 
 
 rugosum, Ehrh 161 
 
 serpens, L 161 
 
 strigosum, Hoffm 160 
 
 subtile, Hoffm 161 
 
 uncinatum, Hedw 161 
 
 lonidium, Vent 11 
 
 lineare, Torr 11 
 
 Ipomsea 
 
 leptophylla, Torr 108 
 
 IRIDACEJS 133 
 
 Iris 
 
 tenax, Dougl 133 
 
 Page. 
 
 Iva 
 
 axillaris, Pursh 69 
 
 ciliata, Willd 69 
 
 xanthiifolia, Gray 69 
 
 Jamesia, T. &G 41 
 
 Americana, T. & G 41 
 
 JASMINES 114 
 
 JUNCACE.E 135 
 
 Juncus 
 
 alpinus, Vill 137 
 
 arcticus, Willd 136 
 
 articulatm, Willd 137 
 
 Balticus, Deth 136 
 
 buf onius, L 137 
 
 castaneus, Smith 136 
 
 Drummondii, E. Meyer 136 
 
 ensifolim, Hook 137 
 
 Hallii, Engelm 136 
 
 longistylis, Torr 137 
 
 Mertensianus, Bong 137 
 
 Menzlesii, Gray 137 
 
 nodosus, L 137 
 
 Parryi, Engelm 136 
 
 triglumis, L 136 
 
 xiphioides, E . Meyer 137 
 
 Juniperus 
 
 communis, L . 132 
 
 Virginiana, L 132 
 
 Kallstro3mia, Scop 17 
 
 maxima, T. & G 17 
 
 Kalmia 
 
 glauca, Ait 88 
 
 Kobresia 
 
 scirpina, Willd 138 
 
 Kceleria 
 
 cristata, Pers 149 
 
 Kuhnia 
 
 eupatorioides, L 55 
 
 LABIATJE 98 
 
 Lathy rus 
 
 linearis, Nutt 32 
 
 ornatus, Nutt 
 
 palustris, L 32 
 
 polymorphus, Nutt 32 
 
 pubescens, Nutt 32 
 
 venosus, Muhl 32 
 
 Lecanora 
 
 Brunonis, Tuckerm 162 
 
 calcarea (L.), Somf 162 
 
 cervina (Pers.), Nyl 162 
 
 chlorophana (Wahl.), Ach 162 
 
 cinerea, L 162 
 
 muralis (Schreb.), Schser 162 
 
 rubina,Ach 162 
 
 straminea, Wahl 162 
 
 subf usca, Ach 162 
 
 varia, Fr 162 
 
 xanthophysa, Nyl 162 
 
 Lecidea 
 
 atro-brunnea (DC.), Schser 163 
 
 confluens, Schaer 163 
 
 contigua, Fr 163 
 
 enteroleuca Fr 163 
 
 lapicidea, Ach 163 
 
 lugubris (Somf.), Nyl 163 
 
 LEGUMINOS.E 19 
 
 Lemna 
 
 minor, L 132 
 
 LEMNACE^E 132 
 
INDEX. 
 
 173 
 
 Page. 
 
 LEXTIBULACE.E 90 
 
 Lenzites 
 
 sepiaria, Fr 164 
 
 Lepachys 
 
 colunmaris, T. & G 70 
 
 Lepidium 
 
 alyssoides, Gray 10 
 
 intermedium, Gray 10 
 
 montanum, Nutt 10 
 
 sativum, L 10 
 
 Leptobryum 
 
 pyriforme (L.,) Schp... 158 
 
 Leptochloa 
 
 f aseicularis, Gray 148 
 
 Leptotrichum 
 
 glaucescens (Hampe), Hedw 156 
 
 Lepturus 
 
 paniculatus, Nutt 151 
 
 Leucampyx, Gray 77 
 
 Newberryi, Gray 77 
 
 Leucocrinum, Nutt 135 
 
 montanum, Nutt 135 
 
 Liatris 
 
 punctata, Hook 54 
 
 scariosa, Willd 54 
 
 LICHEXES 161 
 
 Ligusticnm 
 
 apiifolium, H. & B 51 
 
 montauum, Gray 51 
 
 scopulorum, Gray 51 
 
 LILIACE.E 133 
 
 Lilium 
 
 Philadelphicum, L 134 
 
 Limosella 
 
 aquatica, L 95 
 
 LIXACE^E 16 
 
 Linaria 
 
 Canadensis, Spreng 90 
 
 Linnsea 
 
 borealis, Gronov 53 
 
 Linosyris, Lobel 63 
 
 Bigelovii, Gray 64 
 
 depressa, Torr 64 
 
 graveolens, T. & G 64 
 
 Hoicardii, Parry 63 
 
 Parry i, Gray 64 
 
 sernilata, Torr 65 
 
 viscidijiora, T. & G 64 
 
 Linnm 
 
 perenne, L 16 
 
 rigidum, Pursh '. . 16 
 
 Lippia 
 
 lanceolata, MX 98 
 
 Listera 
 
 cordata, E. Br 133 
 
 Lithopkragma 
 
 parviflora, Xutt 40 
 
 Lithospermum 
 
 angustif olium, MX 100 
 
 hirtum, Lehm 101 
 
 longiflorum, Spreng 100 
 
 pilosum, Nutt 101 
 
 Lloydia, Salisb 134 
 
 serotina, Reich 134 
 
 LOASACEJS 47 
 
 Lobelia 
 
 cardinalis, L 87 
 
 syphilitica, L 87 
 
 LOBELIACE.E... 87 
 
 Page. 
 
 Lonicera 
 
 involucrata, Banks 53 
 
 Lophanthus 
 
 anisatus, Benth 100 
 
 urticsef olius, Beiitk 10 
 
 LORANTHACE^: 124 
 
 Lupinus 
 
 argenteus, Pursh 20 
 
 ceespitosus, Nutt 20 
 
 decumbens, Torr 20 
 
 omatus, Dougl 19 
 
 parviflorus, Nutt 20 
 
 pusillus, Pursh 20 
 
 Luzula 
 
 pardflora, Desv 135 
 
 spadicea, DC ' 135 
 
 spicata, Desv 136 
 
 Lychnis 
 
 apetala, L 12 
 
 Drurumondii, Watson 12 
 
 LYCOPODIACE^: 154 
 
 Lycopodium 
 
 annotinuin, L 154 
 
 Lycopus 
 
 sinuatus^Ell 98 
 
 Lygodesniia 
 
 juncea, Don 86 
 
 Lysimachia 
 
 ciliata, L 90 
 
 LYTHRACE^E 
 
 Lythrum 
 
 alatum, Pursh 46 
 
 Machieranthera, Nees 58 
 
 canescens, Gray 59 
 
 pulverulenta, Nees 58 
 
 tanacetif olia, Nees 59 
 
 Macronema, Nutt 65 
 
 discoidea, Nutt 66 
 
 Macrorrhynchus, Less 87 
 
 glaucus Eaton 87 
 
 troximoides, T. & G 87 
 
 MALVACEAE 15 
 
 Malvastrum 
 
 coccineum, Gray 16 
 
 Mamillaria, Haw 47 
 
 Nuttallii, Engeka 47 
 
 vivipara, Haw 48 
 
 Meesia 
 
 uliginosa, Hedw 159 
 
 Melampodium, L 68 
 
 cinereum, DC 68 
 
 leucanthum, T. & G 68 
 
 Melica 
 
 bulbosa, Geyer 149 
 
 mutica, MX 149 
 
 poceoides, Torr 149 
 
 Menodora, H. & B 114 
 
 scabra, Gray 114 
 
 Mentha 
 
 CanadensiSjL 98 
 
 Mentzelia 
 
 albicaulis, Dougl 47 
 
 multinora, Nutt 47 
 
 nuda,T. &G 47 
 
 oligosperma, Nutt 47 
 
 Wrightii, Gray 47 
 
 Merteusia 
 
 alpina, Don 101 
 
 brevistyla, \Yatsou 101 
 
174 
 
 INDEX. 
 
 Page. 
 
 Mertensia Continued. 
 
 paniculata, Don 101 
 
 Sibirica, Don 101 
 
 Mimulus 
 
 floribundus, Dougl 94 
 
 Jamesii, Torr 94 
 
 luteus, L 94 
 
 rubellus, Gray 94 
 
 Mirabilis,L 115 
 
 multiflora, Gray 115 
 
 oxybaphoides, Gray 115 
 
 Mite'lla 
 
 pentandra, Hook 40 
 
 Mnium 
 
 cuspidatum, Hedw 159 
 
 punctatum, L 159 
 
 serratum, Schrad 159 
 
 spinosum, Voit 159 
 
 spinulosnm, Br. Eur 159 
 
 Monarda 
 
 aristata,Nutt 99 
 
 fistulosa, L 99 
 
 punctata, L 100 
 
 Monardella, Benth 100 
 
 odoratissima, Bentli 100 
 
 Moneses 
 
 uniflora, Gray 88 
 
 Monolepis, Sclirad 117 
 
 chenopodioides, Moq 117 
 
 Montelia 
 
 tamariscina, Gray 119 
 
 Mulilenbergia 
 
 gracilis, Gray 144 
 
 gracillinaa, Torr 144 
 
 pungeiis, Gray 144 
 
 sylvatica, T. & G 144 
 
 Texana, Thurb 144 
 
 Mulgedium 
 
 pulchellum, Nutt 87 
 
 Munroa, Torr 147 
 
 squarrosa, Torr 147 
 
 Musci 154 
 
 Musenium, Nutt 51 
 
 divaricatum, Nutt 51 
 
 Greenii, Gray 51 
 
 tracliyspermurn, Gray 51 
 
 Myosotis 
 
 fruiicosa,ToYT 103 
 
 Myosurus 
 
 minimus, L 2 
 
 Nabalus 
 
 racemosus, Hook 86 
 
 NAIADACE.E 132 
 
 Nama,L 105 
 
 dichotoma, Ruiz & Pav 105 
 
 Nardosmia 
 
 sagittata. Hook 55 
 
 Nasturtium 
 
 obtusum, Nutt 5 
 
 officinale, R. Br 5 
 
 palustre,DC 5 
 
 sinuatum, Nutt 5 
 
 Negundo 
 
 aceroides, Moench 19 
 
 Nicotiana 
 
 attenuata, Torr , 110 
 
 Nuphar 
 
 polysepalum, Engelm 5 
 
 NYCTAGINACE js 115 
 
 Page. 
 
 NYMPH.EACE.E 5 
 
 Obione, Gaertn 117 
 
 argentea, Moq 117 
 
 canescens, Moq 117 
 
 Suckleyana, Torr 118 
 
 OEnothera 
 
 albicaulis, Nutt 44 
 
 biennis, L.... 44 
 
 breviflora, T. & G 46 
 
 canescens, Torr. & Frem 48 
 
 caespitosa, Kutt 45 
 
 coronopif olia, T. & G 44 
 
 eximia, Gray 45 
 
 guttulata, Geer 45 
 
 Hartwegi, Benth 45 
 
 Missouri ensis, Sims 45 
 
 marginata, Nutt 45 
 
 montana, Nutt 45 
 
 Nuttallii,ToTr 46 
 
 pinnatifida, Nutt 44 
 
 serrulata, Nutt 46 
 
 triloba,Nutt 44 
 
 ONAGRACE^E 43 
 
 Onosmodium 
 
 Carolinianum, DC 100 
 
 Opuntia 
 
 arborescens, Engelm 49 
 
 Camanchica, E. & B 49 
 
 Missouriensis, DC 49 
 
 Rafinesquii, Engelm 49 
 
 ORCHIDACE^E 132 
 
 Oreophila 
 
 myrtifoUa, Nutt 18 
 
 OROBANCHACE.E 
 
 Ortuocarpus, Nutt 96 
 
 luteus, Nutt 96 
 
 Orthotrichum 
 
 anomalum, Hedw 157 
 
 Hallii, Sull. & Lesq 157 
 
 Hutcbinsiae, Smith 157 
 
 speciosum, Nees 157 
 
 Utaheiise, Sulliv 157 
 
 Oryzopsis 
 
 micrantha, Thurb 145 
 
 Osmorrhiza 50 
 
 lreri8tyU8,'DC 50 
 
 nuda/Torr 50 
 
 Oxybaphus 
 
 angustif olius, Sweet 115 
 
 Cervantesii, Lag 115 
 
 hirsutus, Sweet 115 
 
 multiflorus, Torr 115 
 
 nyctagineus, Sweet 115 
 
 Oxyria 
 
 digynn, Campd 122 
 
 Oxtryopis 
 
 arctica, R. Br 30 
 
 campestris, L 30 
 
 deflexa, DC 31 
 
 Lamberti, Pursh 30 
 
 multiceps, Nutt 30 
 
 nana, Nutt 30 
 
 splendens, Dougl 31 
 
 Uralensis, L 30 
 
 Pachypodium 
 
 integrifolium, Nutt 9 
 
 Pachystima, Raf 18 
 
 Myrsiiiites, Raf 18 
 
INDEX. 
 
 175 
 
 Page. 
 
 Palafoxia, Lag 74 
 
 Hookeriana, T. & G 74 
 
 Texana, Hook 74 
 
 Panicum 
 
 amarum, Ell 152 
 
 capillare,L 152 
 
 Crus-galli, L 152 
 
 pauciflorum, Ell 152 
 
 virgatum, L 152 
 
 Papaver 
 
 alpina, L 6 
 
 PAPAVEK ACE JE 6 
 
 Parietaria 
 
 Pennsylvania, Muhl 127 
 
 Parinelia 
 
 caperata, Ach 162 
 
 conspersa, Aeh 162 
 
 Kauitschadalis, Eschw 161 
 
 lanata, Nyl 162 
 
 olivacea, Ach 162 
 
 Parnassia 
 
 fimbriata, Banks 41 
 
 parviflora, DC 41 
 
 Paronychia 
 
 Jamesii, T. & G 119 
 
 pulvinata, Gray 119 
 
 sessiliflora, Nutt 119 
 
 PAROXYCIIIE.E 119 
 
 Paspaluiu 
 
 setaceum, MX 152 
 
 Pectis, L 54 
 
 angustif olia, Torr 54 
 
 Pedicularis 
 
 bracteosa, Bentli 97 
 
 Canadensis, L 97 
 
 crenulata, Bentli 97 
 
 Grcenlandica, Retz 97 
 
 Parryi, Gray 97 
 
 procera, Gray 98 
 
 racemosa, Dougl 97 
 
 Sudetica . Willd 98 
 
 Pellaja 
 
 atropurpurea, Link 153 
 
 gracilis, MX 153 
 
 mucronata, Eaton . . 153 
 
 Wrightii, Eaton 153 
 
 Peltigera 
 
 aphthosa, Hoffin 162 
 
 canina, Holfni , . 162 
 
 Pentstenion 
 
 aeuuiinatus, Dougl 92 
 
 albidus, Nutt 92 
 
 alpinus, Torr 91 
 
 ambigims, Torr 92 
 
 OMtff02*K9,Nutt 92 
 
 barbatus, Nutt 90 
 
 cseruleus, Nutt 92 
 
 caespitosus, Nutt 92 
 
 confertus, Dougl 94 
 
 cristatus, Nutt 93 
 
 eyananthus, Hook 91 
 
 Fremontii, Gray 91 
 
 glaber, Pursli 91 
 
 glaucns, Grah 93 
 
 gracilis, Nutt 93 
 
 Harbourii, Gray 93 
 
 Hallii, Gray...' 93 
 
 humilis, Nutt 93 
 
 pubescens, Solander 93 
 
 Page. 
 
 Pentstemon Continued. 
 
 eecundiflorus, Benth 92 
 
 Torreyi, Bentli ; 91 
 
 Pericome, Gray 68 
 
 caudata, Gray 68 
 
 Petalostenioii 
 
 candidus, MX 23 
 
 violaceus, MX 24 
 
 Peucedanum 
 
 nudicaule, Nutt 52 
 
 Peziza 
 
 8cutellata, L 164 
 
 vulcanalis, Peck 164 
 
 Phaca 
 
 rnacrocarpa, Gray 27 
 
 simplicifolius, Nutt 29 
 
 Pkacelia 
 
 circiuata, Jacq 103 
 
 integrif olia, Torr 103 
 
 Neo-Mexicana, Tliurb 103 
 
 Popei, T. &G 103 
 
 sericea, Gray 103 
 
 tanacetif olia, Benth 103 
 
 Phalaris 
 
 arundinacea, L 152 
 
 Pharomitrium 
 
 subsessile, Schp 156 
 
 Phascum 
 
 Carnolicum, W. & M 155 
 
 cuspidatum, Schreb 155 
 
 Phegopteris 
 
 Dryoptens, F6e 154 
 
 Phelipsea 
 
 Ludoviciana, Don 90 
 
 Philadelphus 
 
 microphyllus, Gray 41 
 
 serpyllifolius, Gray 41 
 
 Phleum 
 
 alpiuum, L 142 
 
 Phlox 
 
 canescens, T. & G 105 
 
 csespitosa, N 105 
 
 Douglasii, Hook 105 
 
 lougifolia, Nutt 105 
 
 Phragmites 
 
 communis, L 151 
 
 Physalis 
 
 angulata, L 110 
 
 lobata, Torr 110 
 
 Pennsylvanica, L 110 
 
 pubescens, L 110 
 
 viscosa, L 110 
 
 Physaria 
 
 didymocarpa, Gray 
 
 Pliyscomitrium 
 
 pyriforme, Brid 153 
 
 tetragonum, Brid 158 
 
 Pinus 
 
 aristata, Engelni 130 
 
 Balf onriana, Murr 130 
 
 commutota,Pnrl 130 
 
 contorta, Engelm 129 
 
 edulis, Engelm 130 
 
 flexilis, James 130 
 
 ponderosa, Dougl 129 
 
 Placodium 
 
 bolacinum, Tuckerm 162 
 
 callopismum, Ach 162 
 
 cerinuin, Ach 16^ 
 
176 
 
 INDEX. 
 
 Pago. 
 Placodium Continued. 
 
 coralloides, Tuckerm 162 
 
 vitellinum (Ehrh.), Ach 162 
 
 PLANTAGINACEiE 89 
 
 Plantago 
 
 eriopoda, Torr 89 
 
 Patagoiiica, Jacq 89 
 
 Pleuraphis, Torr 146 
 
 Jamesii, Torr 146 
 
 Pleurogyna, Esch 113 
 
 rotata, Griseb 113 
 
 Poa 
 
 airoides, Nutt 149 
 
 alpina, L 150 
 
 Andina, Nutt 150 
 
 ctesia, Smith 150 
 
 serotina, Elirh 150 
 
 tenuif olia, Nutt 150 
 
 Pogonatum 
 
 alpinum, Roehl 159 
 
 capillare, Brid 159 
 
 urnigerain, L 
 
 Polanisia 
 
 trachysperma.) T. & G 11 
 
 uniglandulosa, DC 11 
 
 PeLEMONlACE^E 105 
 
 Polemonium 
 
 capitatum, Hook 108 
 
 craruleurn, L 108 
 
 conf ertum, Gray 108 
 
 humile, Willd 108 
 
 pulchellum, Bunge 108 
 
 pulcherrima, Lelim 108 
 
 Michardsonii, Grab 108 
 
 Polygala 
 
 verticillata, L 19 
 
 POLYGALACE.E 19 
 
 POLYGONACE.E 119 
 
 Polygonum 
 
 amphibium, L 123 
 
 aviculare, L 123 
 
 Bistorta, L :. 123 
 
 dumetorum, L 124 
 
 erectum, L 123 
 
 imbricatum, Nutt 123 
 
 incarnatum, Ell 123 
 
 Pennsylvanicum, L 123 
 
 ramosissimum, MX 123 
 
 tenue, MX 123 
 
 viviparum, L 123 
 
 Polypodium 
 
 vulgare, L 153 
 
 Polytricbadelphus 
 
 Lyallii, Mitt 159 
 
 Polytrichum 
 
 gracile, Menzies 159 
 
 j uniperinum, Hedw 160 
 
 Icevipiliim, Hampe 160 
 
 piliferum, Scbreb 160 
 
 Populus 
 
 angulata, Ait 129 
 
 angmtifolia, James 129 
 
 balsamifera, L 129 
 
 tremuloides, MX 129 
 
 Portulaca 
 
 oleracea, L , 14 
 
 retusa, Engelm 14 
 
 PORTULACACE/E 14 
 
 Page. 
 
 Potamogeton 
 
 nataus, L 132 
 
 perf oliatus, L 132 
 
 Potentilla 
 
 Anserina, L 38 
 
 arguta, Pursh 35 
 
 concinna, Richards 37 
 
 dissecta, Pursh 37 
 
 dlrsrsifolia, Lehm 37 
 
 eifusa. Dougl 36 
 
 fissa, Nutt 36 
 
 f ruticosa, L 38 
 
 glandulosa, Lindl 36 
 
 gracilis, Dougl 37 
 
 Grayi, Watson 37 
 
 Hippiana, Lehm 36 
 
 liuniif usa, Nutt 37 
 
 miUegraaMf Engelm 36 
 
 nivea, L 36 
 
 Norvegica, L 36 
 
 Nuttallii, Lehm 37 
 
 Pennsylvania, L 36 
 
 Plattensis, Nutt 36 
 
 procumbens, Clairv 35 
 
 rigida, Nutt 37 
 
 rivalis, Nutt 36 
 
 Pottia 
 
 cavif olia, Hedw 156 
 
 Heimii, Sehp 156 
 
 Primula 
 
 aiigustif olia, Torr 89 
 
 f arinosa, L 89 
 
 Parryi, Gray 89 
 
 PRIMULACE.E 89 
 
 Prunus 
 
 Americana, Marsh 33 
 
 Chicasa, MX 33 
 
 Pennsylvania, L 33 
 
 Virginiana, L 33 
 
 Psoralea 
 
 argophylla, Nutt 22 
 
 cnjptocarpa, T. & G 22 
 
 cuspidata, Pursh 22 
 
 digitata, Nutt 22 
 
 floribunda, Nutt 22 
 
 hypogaja, Nutt 22 
 
 lanceolata, Pursh 22 
 
 Ptelea 
 
 iingustif olia, Benth 18 
 
 trifoliata, L 18 
 
 Pteris 
 
 aquilina, L 153 
 
 Pterospora 
 
 Andromedea, Nutt 88 
 
 Ptilagrostis 
 
 MoHgolica, Griseb 145 
 
 Puccinia 
 
 Porteri, Peck 164 
 
 Purshia, DC 34 
 
 tridentata, DC 34 
 
 Pylaissea 
 
 intricata (Hedw.), Schp ,.. . 160 
 
 Pyrola 
 
 clilorantha, Swartz . . ". 88 
 
 minor, L 88 
 
 rotundifolia, L 88 
 
 secunda, L 88 
 
 Pyrrhopappus 
 
 grancliiloruSj Nutt 86 
 
INDEX. 
 
 177 
 
 Page. 
 
 Pyrus 
 
 sambucifolia. Cli. & Sclil 38 
 
 QuamocUdion 
 
 multiflora, Torr 115 
 
 oxybapJioides, Gray 115 
 
 Quercus 
 
 alba, L 127 
 
 Einoryi, Torr 127 
 
 undulata, Torr 127 
 
 Racomitriuni 
 
 heterosticlmm, Brid 157 
 
 R ANUXCULACE.E 1 
 
 Ranunculus 
 
 adoneus, Gray 
 
 affinis, R. Br 
 
 alismsefolius, Gey er 2 
 
 aquatilis, L 2 
 
 cardiophyllus, Hook 
 
 Cymbalaria, Pursh 
 
 diraricatus, Schrank 2 
 
 EschsclwUzii, Schl 
 
 Flammula, L 
 
 glaberrimus, Hook 
 
 liyperboreus, Rottb 
 
 multifidus, Pursh 
 
 nivalis, R, Br 3 
 
 Xuttallii. Gray 
 
 Pennsylvanicus, L 
 
 pygnueus, Wahl 
 
 repens, L 4 
 
 sceleratus, L 3 
 
 RTIAMXACEJE 18 
 
 Kims 
 
 aromatica, Ait 19 
 
 glabra, L 19 
 
 Toxicodendron, L 19 
 
 frtto&afa, Xutt 19 
 
 Ribes 
 
 aureum, Pursh 42 
 
 cereum, Dougl 42 
 
 floridum, L 42 
 
 hirteUum, MX 42 
 
 irriguum, Dougl 42 
 
 lacustre, Poir 42 
 
 leptanthum. Gray 42 
 
 prostratum, L'Her 42 
 
 Rinodia 
 
 oreina ( Acli.), Mass 162 
 
 sophodes (Ach.), Mass 162 
 
 Robinia 
 Xeo-Mexicana, Gray 23 
 
 Rosa 
 
 Arkansana, Porter 38 
 
 blanda, Ait 33 
 
 f raxinif olia, Bork 38 
 
 ROSACE.E 33 
 
 RUBIACE.E 54 
 
 Rubus 
 
 deliciosus, Torr 34 
 
 Xutkanus, Moq 34 
 
 strigosus, MX 34 
 
 triflorus, Richards 34 
 
 Rudbeckia 
 
 hirta, L 70 
 
 laciuiata, L 70 
 
 Rumex 
 
 Acetosella, L 123 
 
 longifolia, DC 123 
 
 . maritimus, L 123 
 
 12 F C 
 
 Page. 
 
 Rumex Continued. 
 
 salicifolius, Weinm 123 
 
 venosus, Pursh 123 
 
 RUTACE.E 18 
 
 Sagina 
 
 decumbens, T. &G 14 
 
 Linnaei, Presl 14 
 
 Sagittaria 
 
 variabilis, Engelm 132 
 
 SALICACE.E 128 
 
 Salix 
 
 arctica, Pall 128 
 
 chlorophylla, Anders 128 
 
 cordata, Muhl 128 
 
 desertorum, Anders 128 
 
 discolor, Muhl ' 128 
 
 glauca, L 128 
 
 longifolia, Muhl 128 
 
 livida, Wahl 128 
 
 nigra, Marsh 128 
 
 reticulata. L 128 
 
 rostrata, Richards 128 
 
 Salicornia 
 
 herbacea, L 118 
 
 Salsola 
 
 dcpressa, Pursh 115 
 
 Salvia 
 
 lanceolata,Willd... 99 
 
 Pitched, Torr 99 
 
 Irichostein moides, Pursh 99 
 
 Sambneus 
 
 j?M&ew6-,Mx 54 
 
 racemosa, L 54 
 
 Sanicula 
 
 Marilandica, L 53 
 
 SAXTALACE.E 124 
 
 Sapindacecc 18 
 
 Sapouaria 
 
 Vaccaria, L 12 
 
 Sarcobatus, Nees 118 
 
 vermiculatuSj Torr 118 
 
 Saxifraga 
 adscendens, L... . 
 
 cesttialis, Fisch 
 
 caespitosa, L 
 
 cernuus, L 
 
 controversa, Sternb. 
 debilis, Engelm . 
 
 38 
 
 39 
 
 33 
 
 38 
 
 38 
 
 38 
 
 flagellarisrWilld 39 
 
 Hirculus,L 39 
 
 integrifolia, Hook 40 
 
 Jamesii, Torr 
 
 nivalis, L 
 
 punctata, L 
 
 rivularis, L 38 
 
 serpyllifolia, Pursh 39 
 
 stellaris, L 39 
 
 SAXIFRAGACE.E 33 
 
 Schraukia 
 
 uncinata, Willd 33 
 
 Scirpns 
 
 atrovirens, Muhl 
 
 csespitosus, L 
 
 maritimus, L 138 
 
 paucifloms, Lightf 138 
 
 punge-ns, Vahl 138 
 
 sylvaticup. L 133 
 
 validus. Vahl 138 
 
178 
 
 INDEX. 
 
 Scrophularia 
 nodosa, L 
 
 SCROPHULARIACE.E 
 
 Page. 
 
 90 
 90 
 
 Scutellaria 
 
 galericulata, L 
 
 resinosa, Torr 100 
 
 Sedum x 
 
 rhodanthum, Gray 43 
 
 Rhodiola, DC 43 
 
 stenopetalum, Pursh 43 
 
 Selaginella 
 rupestris, Spring 154 
 
 Senecio 
 
 amplectens, Gray 
 
 Andinus, Nutt 
 
 aureus, L 
 
 Bigelovii, Gray 
 
 cauus, Hook 82 
 
 cernuus, Gray 82 
 
 eremophilus, Richards 82 
 
 exaltatus, Nutt 80 
 
 filifolius, Nutt 82 
 
 Fremontii, T. & G 82 
 
 integerrimus, Nutt 81 
 
 longilobus, Bentli 82 
 
 lugeus, Richards 80 
 
 renifolius, Porter 83 
 
 Soldanella, Gray 83 
 
 triangularis, Hook 81 
 
 Seseli,L 52 
 
 Hallii, Gray 52 
 
 Sesleria 
 dactyloidcs, Nutt 147 
 
 Setaria 
 
 Italica, Kunth 152 
 
 viridis, Beauv 152 
 
 Shepherdia 
 
 argentea, Nutt 124 
 
 Canadensis, Nutt 124 
 
 Sibbaldia 
 procumbens, L 35 
 
 Sidalcea, Gray 15 
 
 Candida, Gray 16 
 
 nialvseflora, Gray 15 
 
 Sieversia 
 paradoxa, Don 35 
 
 Silene 
 
 acaulis, L 12 
 
 Drummondii, Hook 12 
 
 Menziesii, Hook 12 
 
 Scouleri, Hook 12 
 
 Sisymbrium 
 
 canescens, Nutt 
 
 glaucum, Nutt 8 
 
 Sisyrinchium 
 Bermudiana, L 133 
 
 Sitanion 
 
 elymoides, Raf 151 
 
 Sium 
 
 angustif olia, L 50 
 
 lineare, MX 49 
 
 Smelowskia, Meyer 8 
 
 calycina, Meyer 
 
 SMILACACEJB 133 
 
 Smilacina 
 
 amplexicaulis, Nutt 133 
 
 racemosa, Desf 133 
 
 SOLAXACE^E 109 
 
 Page. 
 
 Solatium 
 
 Coronopus, Duu 110 
 
 heterodoxum, Dun 110 
 
 nigrum, L 109 
 
 rostratuin, Dun 109 
 
 triflorum, Nutt 109 
 
 Solidago 
 
 Canadensis, L 63 
 
 Guiradonis, Gray 62 
 
 humiUs, Pursh 62 
 
 lanceolata, L 63 
 
 Missouriensis, Nutt 63 
 
 nenaoralis, Ait 63 
 
 occidentalis, T. & G 63 
 
 pumila, T. &G 63 
 
 rigida, L 62 
 
 Virga-aurea, L 62 
 
 Solorina 
 
 bispora.Nyl 162 
 
 Sophora, L 31 
 
 sericea, Pursh 31 
 
 Sorghum 
 
 nutans, Gray 152 
 
 Sparganium 
 
 simplex, Huds 132 
 
 Spartiiia 
 
 cynosuroides, \Yilld 146 
 
 gracilis, Trin 146 
 
 Specularia 
 
 perfoliata, A. D. C 88 
 
 Sphagnum 
 
 acutif olium, Ehrb 155 
 
 Sphffiralcea, St. Hil 16 
 
 angustif olia, Spach 16 
 
 stellata, T. & G 16 
 
 Spiraea 
 
 aricpfolia, Smith 33 
 
 dumosa, Nutt 33 
 
 opulif olia, L 33 
 
 Spiranthes 
 
 Romanzomaua, Ch 133 
 
 Sporobolus 
 
 cryptandnts, Gray 143 
 
 Stachys 
 
 cordala, Riddell 100 
 
 palustris, L 100 
 
 Stanleya, Nutt 9 
 
 in tegrifolia, James 9 
 
 pinnatifida, Nutt 9 
 
 Staurothele 
 
 umbrina (Wahl.), Tuck 163 
 
 Stellaria 
 
 borealis, Bigel 13 
 
 crassifolia, Ehrh 13 
 
 Jamesiana, Torr 13 
 
 longipes, Goldie 13 
 
 unibellata, Turcz 13 
 
 Stenosiphon, Spach 46 
 
 virgatus, Spach 46 
 
 Stenotus 
 
 pijgmwus, T. & G..- 66 
 
 Stephanomeria, Nutt 85 
 
 minor, Nutt 85 
 
 runcinata, Nutt 85 
 
 Stereocaulon 
 
 condensation, Laur 163 
 
 paschale, Laur 162 
 
 Stipa 
 
 Mongolica, Turcz 145 
 
INDEX. 
 
 179 
 
 Page. 
 
 Stipa Continued. 
 
 spartea, Trin 146 
 
 viridula, Trin 146 
 
 Streptanthm 
 
 angustifolim, Nutt 6 
 
 lincarifoUus, Gray 9 
 
 Streptopus 
 
 amplexifolius, DC 133 
 
 Sanaa 
 
 depressa, Ledeb 118 
 
 maritima, Dumort 118 
 
 Swertia, L 113 
 
 perenuis, L 113 
 
 Symphoricarpus 
 
 montanus, H. B. K 53 
 
 occidentalis, E. Br 53 
 
 Synthyris 
 
 alpina, Gray 95 
 
 plantaginea, Benth 95 
 
 Talinum 
 
 pygnueum, Gray 14 
 
 teretif olium, Pursli 14 
 
 Taraxacum 
 
 palustre, DC 87 
 
 Tayloria 
 
 splachnoides, Hook 158 
 
 Tellima, R. Br 40 
 
 parviflora, Hook 40 
 
 Teloxys, Moq 116 
 
 cornuta, Torr 116 
 
 Tetradymia, DC 84 
 
 canescens, DC 84 
 
 glabrata, T. & G 84 
 
 inermis, Nutt 84 
 
 Teucrium 
 
 Canadense, L 98 
 
 Culense, L 98 
 
 laciniatum, Torr 98 
 
 Thalictrum 
 
 alpinum, L 1 
 
 clatatum, Hook 1 
 
 Fendleri, Gray 1 
 
 purpurascens, L 1 
 
 sparsiflorum, Turcz 1 
 
 Thaspium 
 
 montanum, Gray 51 
 
 trachypleuruni, Gray 52 
 
 trifoliatum, Gray 52 
 
 Theleoschistes 
 
 parietinus (L.) 161 
 
 Thelespenna, Gray 72 
 
 filifolium, Gray 72 
 
 gracile, Gray 72 
 
 Themiopsis, R.Br 19 
 
 f abacea, DC 19 
 
 rhombif olia, Nutt 19 
 
 Thlaspi 
 
 alpestre, L 10 
 
 coc 1i lean forme, DC 10 
 
 Tlmidium 
 
 abietinum, Br. Eur 160 
 
 Blaiido\vii, "NV. & M 160 
 
 Tiinmia 
 
 Austriaca, Hedw 159 
 
 megapolitana, Hedw 159 
 
 Townsendia, Hook 58 
 
 grandiflora, Nutt 58 
 
 sericea, Hook 58 
 
 j Tradescantia 
 
 I Virginica, L 138 
 
 ; Tragia 
 
 nepetaef olia, Mull 126 
 
 ramosa, Torr 126 
 
 Tribulus 
 
 maximus, L 17 
 
 Tricuspis 
 
 acuminata, Thurb 148 
 
 avenacea,Kih 148 
 
 niutica, Torr 148 
 
 purpurea, Nutt 143 
 
 Trifolium 
 
 dasycarpum, T. &. G 21 
 
 involucratum, Willd 21 
 
 longipes, Nutt 20 
 
 nanum, Torr 21 
 
 Parryi, Gray 21 
 
 Triglochin 
 
 maritimum, L 132 
 
 palustre, L 132 
 
 Trisetum 
 
 subspieatum, Beauv 151 
 
 Triticum 
 
 agilopoide*, Turcz 151 
 
 caninum, L 151 
 
 repens, L 151 
 
 strigosum, Steud 151 
 
 Trollius 
 
 laxus, Salisb 4 
 
 Troximon 
 
 cuspidatum, Pursh 85 
 
 glaucum, Nutt 87 
 
 Tj-pha 
 
 'latifolia,L 132 
 
 TYPHACEJE 132 
 
 UMBELLLFER^: 50 
 
 UmbUicaria 
 
 cylindrica, Ach 162 
 
 rugifera, Nyl 162 
 
 Vniola 
 
 8tricta,Torr 150 
 
 Urachne 
 
 micrantha, Trin 145 
 
 Urtica 
 
 dioica, L 127 
 
 gracilis, Ait 127 
 
 URTICACE.E 127 
 
 Usnea 
 
 trichodea, Ach 161 
 
 Utricularia 
 
 gibba, L 90 
 
 vulgaris, L 90 
 
 Taccaria 
 
 vulgaris, Host 12 
 
 Vacc'iniuni 
 
 csespitosmn. MX 88 
 
 Myrtillus, L 88 
 
 Valeriaaa 
 
 dioica, L 54 
 
 edulis, Nutt 54 
 
 sylvatica, Richards 54 
 
 YALERIAXACE.E 54 
 
 ; Taseya, Thurb 145 
 
 comata, Thurb 145 
 
 Yeratrum 
 
 album, L 133 
 
 Verbena 
 
 Aubletia, L 98 
 
180 
 
 INDEX. 
 
 Pago. 
 
 Verbena Continued. 
 
 bracteosa, MX 98 
 
 hastata, L 98 
 
 stricta, Vent 98 
 
 VERBEXACEJE 98 
 
 Veronica 
 
 alpina, L 95 
 
 Americana, Sclrweiii 95 
 
 peregrina, L 1*5 
 
 serpyllifolia, L 95 
 
 Verrucaria 
 pyrenophora, Nyl 1G3 
 
 Vesicaria 
 
 didymocarpa, Hook 
 
 Ludoviciana, DC 7 
 
 montana, Gray 
 
 stenophylla, Gray 7 
 
 Viburnum 
 pauciflorum, Pylaie 54 
 
 Vicia 
 
 Americana, Muhl 32 
 
 micrantha, Nutt 32 
 
 truncata. Nutt 32 
 
 Vilfa 
 
 airoides, Nees & Meyer 143 
 
 cryptandra, Torr 142 
 
 cuspidata, Torr 143 
 
 depauperata, Torr 143 
 
 ramulosa, H. B. K 143 
 
 tricholepis, Torr 143 
 
 Villanova, Lag 
 
 chrysanthenioides, Gray 
 
 Viola' 
 
 biflora, L 
 
 Cauadensis, L 
 
 eamna, L 
 
 75 
 
 75 
 
 11 
 
 11 i 
 
 n 
 
 Page. 
 
 Viola Continued. 
 
 cucullata, Ait 11 
 
 delphinifolia, Nutt 11 
 
 Nuttallii, Pursk 11 
 
 palustris, L 11 
 
 VIOLACE^C 11 
 
 VITACE.E > 18 
 
 Vitis 
 
 cordifolia, MX 18 
 
 rinaria. MX 18 
 
 Webera 
 
 cruda, Schreb 158 
 
 elongata, Schwiogr 158 
 
 Ludwigii, Sprcug 158 
 
 Weisia 
 
 cirrhata, Hedw 155 
 
 crispula, Hedw 155 
 
 Withania, Puq 110 
 
 Coronopus, Torr 110 
 
 Woodsia 
 
 Oregana, Eaton 154 
 
 scopuliua, Eaton 154 
 
 Ximciiesia, Cav ~'.\ 
 
 encelioides, Cav 73 
 
 Yucca 
 
 augustif olia, Ptirsli 135 
 
 Zieria 
 
 demissa (Horn.), Sclip 159 
 
 Zinnia, L 70 
 
 grundiilora, Nutt 70 
 
 Zygadeiius 
 
 ^laucus, Nutt 133 
 
 Nuttallii, Gray . . . 133 
 
 Zygodon 
 
 l,;i])])ouicus, Br. Eur 157 
 
 ZYGOPHYLLACE.E.. 17 
 

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