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WALKER Department of Botany 1925-1959 Presented by his wife \.,^ Wm t 'Li, r ■'if' ' '• .'-.i^'v-y 1 -^ 1 r* I i fcV The North American Species or Gayophytum and BoSajia. BaPBINTED ,N ADVANOa By WILLIAM TBELBASB. 'HOM THB FlPTR A»«„,. Qabdbn. OP TM MI88O0M iaeirx2> JAWUART S> 1894. I \^ \^ (•.■-:b V \ i- S 1--, ,V "^ yy. '«;»jSi*i ;.v > ■>! feM/ ,^<4ia3 -'"■•«* ,:; ■V ■% , a , ,^ _,J^^,,^ 394628 •4 I REVISION OF THE NORTH AMERICAN SPECIES OF C.AVOIMIYTUM AND BOISDUVALIA. BY WILLIAM TIIKMCASK. Though few in nuiul)er.s, our species of Gayophytuui and Boisduvalia are difficult because of the great variability of several species, and as the naming in herliaria is usually much confused, it is hoped that the following revision may facilitate the determination of future collections. In its preparation I have examined the material in the Engel- niann herbarium and the general herbarium of the Missouri Botanical Garden, and the collections of Columbia College, Harvard Universit}^ the California Academy, and the United States Department of Agriculture, for the use of which I wish to express my thanks. Several western cor- respondents have also placed me under obligation by con- tributing specimens for the Garden herliarium. Gayophytum, Juss. Ann. Sci. Nat. 1832, xxv. 18, pi. 4; Bentham & Hooker, Gen. PI. i. 786, 789. Gayophytum is a small genus of Onagraceao of the as- pect of the paniculatum group of Epilobium, and also more or less similar in appearance to species of Oenothera of the group Sphaerostigma. From the former it differs oy hav- ing its seeds quite destitute of a coma, and by its two-celled ovary and fruit, and isolated pollen grains. Oenotheras of similar habit and with equally reflexed f'e[)al.j, may be dis- tinguished from it by their more elongated calyx-tube, and 4-celled ovary, and the prevailing color of their flowers is yellow, while the flowers of our GaA'ophytums are white or rose-purple. The bark is very frequently papery-exfoliat- ing at base, as in some Ei)ilobiums. The geographical distribution of the genus is peculiar. The species represented in our flora are plants of the mountain region of the west. One or two other represent- 1 MIfHOMM r.OTAMCAl, () AltDKN. i t ativcs, — inc'ludiiiji; tlic Mpocios on which the pjcnus was founded by JiLSHieu, — occupy the corresponding part of the South American continent; but the genuH ap[)ears to be entirely absent from the intervening country. None of the species are truly alpine, though several of them reach up to considerable altitudes in the higher mountains; never- theless the indication is that the former distribution of the genus V/iis continuous along the backbone of both North and South America. Plants of thlL; distribution arc often represented also across the Noilh American continent in high latitudes, and not infrequently they occur likewise in Europe, where they enjoy a similar arclic-alpinc distribu- tion. In the present case, however, the prototype of the genus appears to be of rather recent differentiation from Oenothera, which is of wide American distribution (one specic.i, Tasmanian, according to Bentham and Hooker), of which genus it represents an accentuated mountain type. The principal revisions of our species appear in Torrey & Gray, Fl. N. A. i. 512; Watson, Bot. Calif, i. 221; Coulter, Man. Kocky Mt. Bot. 103; and Greene, Flora Franciscana, 218. For other references see Watson, Bibl. Index, 370. SYNOPSIS, * Seeds canescent with appressed liairs. Flowers siirnll, tlie petals aljout 1 nun. long G. lasiospermum. Flowers large, the i)etals 3 to mm. long G. eriosptrimim. ** Seeds glal)rous, either smooth or low papillate. -•- Much forked above, mostly remotely leaf y : stigma rather small: pedicels llliform, elongated: capsules subclavate, mostly toru- lose : seeds rather few, suberect, large, mostly dark colored. Large flowered, the petals 3 to 6 mm. long: seeds al)0Ut 1.5 ram- long G. diffusum. Small floAvercd, the petals 1 to 2 mm. long: seeds 1 to 1.5 mm. long. G, ramonissimum. H- ••- Subsimple or paniculately hranclicd, especially toward the base, densely leafy: stigma largo, capitate: pedicels short or almost wanting: capsules neither clavate nor conspicuously torulose: seeds numerous, small, pale. Capsules narrowly linear, witli suberect seeds O. caesium. Capsules broadly ol)loug, tiattencd contrary to the septum, with very oblique seeds G. pumilum. 2 OAYOI'IIYII M A.\0 BOIHDLVALl V. long. G. LASiosPEKML'M Grcciic, Pitloiiiii, 1891, ii. 1(>4. — A 8|i!m lo .'I foot liiirit, loosely dichotomous willi lilitorni brunches, i\ui upper leaves aiul InHoreseeneo more or less cmioseent with iipprcssed or spreadim^ shoi't haii's; le.'ive.s aseendiiiir ; Howers small, tlio petals about 1 mm. loiiir; shorter stamens with Minall anthers; stij^iiia ;:lobose, about .3 nun. in diameter; capsules erect, about e(|ualinX1.2r) nun, (varying from .29 to .OO X.92 to 1.72 nun). — Washington to Southern California and Nevada. Specimens examined from Washington (near Mt. Adams, Henderson, Aug. 6, 1892, 2466, and Suksdorf, Aug. 31, 1881, 22; Spokane, Henderson, Juno 10, 1892, 24(57), California (Julian, Dunn, 1888; Congdon, 1889; Pringlo, 1881; Cuiamaea Mts., Palmer, 1875, 99; Mojave River, Parish, 1884 and 1886, 1824; Sunuuit, Mrs. Curran, Sept. 1888; Donner, Brandegeo, Aug. 1883; Tehachapi, Brande- gee, July 1884, and Mrs. Curran ; Susanville, Brandegee, July 1, 1^*92 ; Lassen Co., hb. Calif. Acad. ; Laguna, Cleve- land, 1885, 462; San Diego Co., Palmer, 1875, 138,— with seeds as large as in the next, and torulose ca})sules, and Palmer, 1876, 131 in part; Sierra Co., Lenunon, 1874; Kernville, Coville & Funston, 1891, 1040 and 2167; Ft. Tejon, Coville & Funston, 1891, 1180), and Nevada (Cavson City, Anderson, 1864.) As hero understood, this species is quite variable in aspect, the habit of some specimens being that of ramositisimwnf while others more nearly resemble caesium. The numerous usually small seeds recall the latter species, but in some cases the capsules and seeds have more nearly the form and size of those of the former, and it is possible that another species may be separated, intermediate between lasiosper- mum and crioaptrmum. G. EKiosFERMUM CoviUc, Botauy of the Death Valley 3 MISSOURI BOTANICAL GARDEN. Expedition, 1893, 103. — Liir<;oi- und tuoro loosely forked ; tlowcrs very liir<;«, the petalH 3 to inin. lonjjf, rosy; anthcr.s and Ktijjma twiro as largo as in tho preceding; capHules more Hproadiiij;, toruloHo; 8eed8 few, 1.3 to 1.5 nun. long. — Oregon to Central California. Specimens examined from Oregon (Camp Harney, Bcndire, 1875), and California (Bolander, 186fi, 6371; Peru Creek, Rothrock, 187.'), 225; Fresno Co., Engelmann, Sept. 13, 1880 — the seeds of some s[)ecimens of this collection glabrous and i)apillate, strongly suggesting hybridity with lUffusum; Kern Co., Palmer, 1888, 155; Tularo Co., Coville and Fuuston, 1891, 1316; Siskiyou Co., Pringlc, Sept. 6, 1882). G. DIFFUSUM Torrey and Gray, Fl. 1840, i. 513. — A foot or two high, loosely dichotomous, somewhat cancseont above or with spreading hairs throughout ; flowers largo, tho petals about 3 mm. long; stamens all with good anthers; stignui little enlarged, about .25 mm. in diameter; capsule* thick, subclavate, torulose, erect or refracted; seeds few, low papillate, about .55X1.3 mm. (varying from .42 to .85X1.05 to 2 mm).— Washington to Central Cali- fornia, Idaho and Northern Utah. Specimens examined from Washington (Snake River, Fremont, 1843, 782 ; Spokane River, Cooper, 18(50 ; Fal- con Valle}-^, Suksdorf, Sept. 2, 1881, and Howell, Aug. 19, 1882), Oregon (Nuttall ; Harford; Klanuith Valley, Cronk- hite, 1864; Geyer, 546; Cusick, June 1878; Lyall, 1860; Howell, June 1877, and 1880), California (Bridges; Brewer, 1860-2, 1414; Lassen Co., Bryant; Amador Co., Mrs. Wiley, July 1886; Plumas Co., Mrs. Ames, 1874, and Cleveland, June 1882 ; Alta, Jones, July 3, 1882 ; Crescent Lake, Kellogg and Harford, 1868, 280; Sequoia Mills, Brandegee, July 19, 1892; Mt. Shasta, Pringle, Aug. 29, 1882; Sierra Nevada Mts., Lemmon, 1875; Sissons, Mrs. Curran, July 1887 ; Yosemite, Gray, 1872, Torrey, 1865, 112, Bolander, 1866, 4922, Mrs. Curran, July 1883, and Brandegee, July 1883) , the Yellowstone Region ? ( Hayden, 4 i OAYOIMIYTUM AND lU)l8I)rVAI-IA. y forked ; 'jr. rosj; roccding ; .3 to 1.5 Harnoy, 0, (J371; golnmnn, I of this ij?gesting 38, 155; Siskiyou 513.-.A ianoscont iVH largo, th good iameter ; f racted ; ng from ral Cali- 3 River, JO; Fai- Liig. 19, Cronk- 1860; ridges ; or Co., 74, and rescent Mills, ug. 29, s, Mrs. , 1865, 3, and avden. f ▼arious ntnulMTM (»f iMrjll-tiO, in tiic Kiij^clmann lior- Imriiiin, — tinis*' plaiils of leafy hahil witli more aiiipio foliage than usual, and less dicholonious, hut loo yonng f«)r Hati?*fa('torv .stndv), Maho (Ti'toii Foot Hills, Ilaydcn KxpcHlition, 1872), and Utah ( Parley's Park, Watscuj, .Inly 1869, 404). (i. iiAMOsisHiMUM Torr. & Gray, Fl. i. 1840, :)i;j.— A upan to a loot or Isvo high, intricately dichotonious with filiform hraiu-hes, glabrous, appressed eaneseent above, or very e.xeeptionally with spreading hairs throughout ; leaves mostly narrow, usually less consijii nous than in the last, often appressed against tlie branches; flowers snuill, the petals 1 to 2 nun. long; stamens in two sets, the; shorter ones often with abortive anthers; stigma larg(>r, about .4 mm. in dianu^ter; capsuhjs about 1 mm. thick, oblong to Bubelavat(!, often torulose, erect or refracted, on filiform peduncles; se'.fds few, nearly erect in a single series, papil- late, about .5X1. 3mm. (varylngfrom.38to .80X.84 — 1.89 mm.), often abruptly dilated on(!-third above the base. — Washington to the Yellowstone, Arizona auul Southern California. Specimens examintul from Washington (Brandegee, 1882, 280, and 1883, 781; Yakima Co., Henderson, May 30, 1892, 2463, and Aug. 3, 1892, 2464 ; Falcon Valley, Suksdorf, Aug. 2, 1881, 20, and Sept. 2, 1881, 13; North Branch of the Columbia, Wilkes Exped, 1838-42, 1052), Oregon (Geyer,4 and 547; Hall, 1871, 183; Howell, 1880; John Day Valley, Howell, May 12, 1885; Stein's Moun- tain, Howell, June 1, 1885), Idaho (Kootenai Co., Sand- berg, July 1892), Montana (Birch Lakes, Canby, Aug. 8, 1883, 133), Yellowstone Park (Miss Cooley, June 1891, 4), Rocky Mountains (Nuttall, Hall and Harbour, 1862, 172 for the most part). Black Hills of the Platte (Hayden), Colorado (Central City, Letterman, 1885; Palmer Lake, Miss Eastwood, 1890; Sierra Mojado, Brandegee, June ■jS877 ; Fremont Co., Brandegee, 1872, 450; Golden, Greene, 1870; Parry, 1872; Clear Creek, Parry, 1861-2, 124; 5 lllSflOUItl DOTANICAL OAltDRN. Eaglo River, Coulter, Auj;. 20, 187.'i; Empire, Pnttorson, Aug. 13, 1892, 208; South Park, Wolf, 187.1, LOO (447); Lcudvillo, Treleasc, July 188(5; BriMk«!nri(l;;e, Mrs. Win- li/enuM, 1887; Vanpy, 1868, li)0; Ilar)l>it'M Ear Pa.sH, Shol- (lon, 1884, 186), Utah (Frisro, Joijoh, Juno 22, 1880, 1953 ; Ogdc'u, Tracy & Evans, July 31, 1887,573; Alta, Jono8, Aug. 1, 1879, 1148; Salt Lako City, Watson, May 1869, 401; City Crook Caflon, Jones, Sept. 11, 1882; Palmer, 1877, 157 in })art; Antelo[)o Island, Stansbury Exped. Juno 30, 1850, and Watson, Juno 1869, 401), Arizona (Wil- liams, Rusby, July 20, 1883), Nevada ( Carson City, Ander- son, 1864, 239, 282, and Stret(^h, May 1865; Gray, 1872; Auruni, Jones, Juno 12, 1893; Soda Springs, Jones, July 20, 1881, 2403; Empire City, Torrey, 1865, 96; Monitor Valley, Watson, July 1868, 401 ; Virginia Mountains, Watson, July 1867, 401 ; Palisade, T.acy & Evans, July 26 and 29, 1887, 515), California (Tuolumne, Bolander, 1866, 5059; Brewer, 1860-2, 1711, 1945; Palmer, 1876, 131 ; Mt. Shasta, Brandegoe, July 1887, and Pringle, Aug. 29, 1882 in pail, toward diffuaum; Merced River, Torroy, 1865, 96a; Yosomite, Torroy, 1865, 96; San Jacijito Mts., Parish, July 1881, 1023; Summit, Mrs. Curran, Sept. 1888; Snow Mountain, Brandogee, Aug. 24, 1892; Del Norte Co., Brandegoe, Sept. 1885; Doniior Lako, Torroy, 1865, 98 ; Truekee, Brandegoe, July 1884, and Mrs. Cur- ran, Sept. 1887). Specimens ai)parcntly referable here, but with larger flowers, the staiiions of the two sots subequal, from Cali- fornia (Strawberry Valley, Pringle, Aug. 16, 1881, 108; Big Trees, Bolander, 1866, 6365) and Washington (Falcon Valley, Suksdorf , Aug. 2, 1881, 21). A leafy paniculatoly branched plant from Sierra Valley, Calif., Lemmon, 1873, with leaves as much as 4X35 mm., apparently belongs here also. The more villous plants can hardly be distinguished from lasiospermum except b}' seed characters. What may be this species was collected by Brandogee at Baja Cali- fornia, L. Cal., May 28, 1893. " 6 O/WOI'in n M AM» llOlM»l,VAI,IA. •0 (447); ^I'H. WiH- asH, Shol- 80, 1953; ta, JonuH, lay 18(Jl), ; Paliner, pc(|nally almndantnml of similar dislrihulion. Cornssponding forms oct'ur in ollmr spc'cioH, HO that it has linrdly sccniiHl dcsirahh^ to maintain th to .8 mm, in diameter; capsules .5 nun. wide, narrowly linear, littlo flattened, nearly sessile, often finely torulos(!, erect; seeds numerous, nearly ere 1 1! the Hooker fr.agment referred to above?) should all bear the name micranthum. BoiSDUVALiA, Spaeh, Hist. Nat. des Veg. 1835, iv. 383, and Atlas, pi. 85, f . 2 ; Monogr. Onagrearum, 1835, 398, pi. 31, f. 2; Benth. and Hook., Gen. Plant, i. 790, — as section of Oenothera. Like Gayophytuni, this is a small group, confined to the mounttiins of Western North and South America, what has boen said of the distribution of the former genus applying eijually to this, except that our species are more closely confined to the Pacific coast. In general habit it approaches closest to Oenothera, with which Bentham and Hooker unite it, but in aspect it differs from most species of Oeno- thera proper, from which it also differs (so far as our species are concerned) in its short, nearly basifixed anthers in two sets, erect calyx lobes, and pollen grains adnate in tetrads. It is also closely related structurally to Epilobium, from which it differs in aspect, and in its seeds destitute of a coma. In my study, I have thought best to follow most American botanists in treating it as a distinct genus. The principal revisions of our species appear in Torrey & Gray, Fl. N. A., i. 505 (under Oenothera); Watson, Bot. Calif, i. 233; Behr, Flora of the vicinity of San Fran- cisco; and Greene, Flora F^ranciscana, 224. — For other references see W^atson, Bibl. Index, 302, and Jackson, Index Kewensis, i. 318- SYNOPSIS. * Capsule membranaceous, loculicidal, a considerable portion of the septa remaiuiu!^ atlaclietl lo the valves on deliisceiice. Leaves ovate lanceolate, 1i»>>ilu;d, the upper not reduced: ficeds minute, fusiform B. glabella. Leaves nnrrov.ly lanceolate, nearly entire, the upper small: sciids broad and flattened B. stricta. *♦ Capsule menil)ranaceous, septifraijal, tlie septa wholly adherent to the placenta, rendering; the latter stronsily 4 winged: leaves lanceolate, toothed, tiie upper broader B. densfflora. *•♦ Capsule coriaceous, 4 sided, very tardily (locullcidally?) dehiscent: leaves narrowly l.tnit'ohitc. toothed, the upper not enlarged. B. elf I ^togama. 10 ik' I tJAVOt'lIYTl .M AM) li(il>l)l \ AI.IA. 1 all bear , iv. 383, 835, 398, 2 790, — as 'I led to the what has • applying re closely jproaches i Hooker of Oeno- ir as our id anthers adnate in Ipilobium, 5 destitute to follow t ■A- let genus. -i' n Torrey f tson, Bot. *v vm Fran- t 'f ! 'A For other ¥ Jackson, | V irtion of the 0. need: fioeds . B. glabella. nnall: seeds :, . . B. stricta. V iidherciit to J ged: leaves f. denafflora. ik ) dehiscent: t )t euhirged. ';' clfiHogama. V B. OLAHF.LLA (Nutt. ) WiiliHTs, Kopcrt. 1843, ii. 89; Watson, B(»t. Calif. 1870, i. 233; Indox, iW2,— Omoffirra ylahtlla Nutt. in Torroy & Gray, Flora, 1840, i. .'iO,'). — A .span or two hijj;h, siniplo or mostly drcunihcntiy branched near the base aiu' fre(|ucntly with ascending branches above, bluish, (icpsely soft villous to glabrous; loaves half an inch long, ovate lanceolate, acute, serrulate, the upper similar; flowers in a terminal cluster and a few shorter literal spikes, also occasionally in the lower axils, shorter than the subtending leaves; corolla about 2 mm. long, violet; capsules rather slender, nearly straight, usually acute, about 7 mm. long, subterete with 4 broad nerves or laterally somewhat 2-keeled, loculicidal ; seeds about 6 in each cell, subfusiform, small, about .35X1 mm. (varying from .25 to .42 X .84 to 1.26 mm.).— British Columbia to Montana, Nevada, and southern Californa. Specimens examined from British Columbia (Cypress Hills, Macoun, 1880, 67; Bullrush Lake, Macoun, July 25, 1880, — both with narrower leaves than usual), Washington (Pullman, Henderson, July 17, 1892, 2469), Oregon (Hall, 1871, 190; "Walla Walla, Nuttall ; Howell, 1887, 702; Grant's Pass, Howell, 1887, 1145; Wasco Co., Suksdorf, 1886, 862), Montana (Sand Coulee, Anderson, July 1887; Deer Lodge?, Notestein, 1892), Nevada (Carson Valley, Watson, Aug. 1867, 413; Truckee Valley, Bailey, 1867, 413), and California (Vasey, 11875; Mrs. Austin, July 1884, 176; Ehnira, Mrs. Curran, Aug. 1883; San Diego, Cleveland, 1882, 868, and Orcutt, 1887, 1119; San Luis Obispo, Brandegee, July 1886, and Palmer, 1876, 14.") j; Santa Monica, Hasse, June 1892; Siskiyou Co., Greene. 1876, 892; Gilroy, Brandegee, June 1885; Antioch, Brandegee, June 8, 1892; Mt. Eden, Brandegee, June 16, 1893; Snow VX., Brandegee, June 23, 1891 and Aug. 1892; Byron, Brandegee, June 9, 1892; Monterey Co., Congdon, June 1881). B. STiiiCTA (Gray). — GayopJiytum strictum Gray, Proc. Amer. Acad., 1867, vii. 340. — Oenothera Torreyi 11 ,# mSSOUKI BOTANICAL OAKDEN. "I I 1 ( ■ 1 1 f ! I ^ \ i i 1 iii Watson, Proc. Amer. Acad. 1873, viii. 600. — O. densiflora var. tenella Gray, Proc. Amer. Acad. 1873, viii. 384 — Boisduvalia Toireyi Watson, Bot. Calif. 1876, i. 233; Index, 363. — A foot to a foot and a half high, slender, simple or with a few long erect virgate branches chiefly toward the base, densely villous, often hoary ; leaves com- monly under 1 in. long, narrowly lanceolate, acute, entire or minutely denticulate, the upper shorter and not widened ; flowers axillary along the branches, about ecjualing the leaves; corolla 2 to 4 mm. long, violet; capsules slender, generally curved outwards, tai)ering above, more or less 2- edged, about 10 mm. long, loculicidal, the lateral nerves commonly heavier; seeds 6 to 8 in each cell, similar to those of densijlora but smaller, about .5X1 mm. (varying from .38 to .63X.88 to 1.6 nun.). — Washington to Idaho and Central California. Specimens examined from Washington (Brandegee, 1882 and 1883, 788; Seattle, Piper, 1888, 411; Spokane, Henderson, 1892, 2468 in part, and Sandberg, Aug. 1892; Klickitat Co., Suksdorf, Aug. 8, 1881; Falcon Valley, Suksdorf, Aug. 1880, 378, and July 3, 1882), Oregon (Hen- derson, 1882, 360; Howell, Aug. 1880; Hall, 1871, 189; Grant's Pass, Howell, June 23, 1884; Idaho (Kootenai Co., Heller, 1892, 905), and California (Rockville, Earle, Aug. 1, 1880; Yreka, Greene, 1876, 853; Humboldt & Sonoma Counties, Bolander, 1866-7, 6535; Almaden, Torrey, 1865, 109; Borax Lake and Bear Mountain, Torrey, 1865; Sta. Lucia Mts., Vasey, July 1880, Kern- ville, Coville and Funston, 1891, 1041,- Lake Co., Brande- gee, July 1884, and June 1890; Howell Mt., Brandegee, Aug. 1888; Plumas Co., Brandegee, July 4, 1892; Byron Sta., Greene, May 24, 1886 ; Newcastle, Brandegee, July 5, 1889; Sonoma, Brandegee, June 1892; Modoc Co., Mrs. Austin, Aug. 1885; Humboldt Co., Mrs. Bush.) B. DENSIFLORA (Liudlcy) Watson, Bot. Calif. 1876, i. 223; Index, 362. — ^. Douglasii Spach, Hist. Nat. Ve- getaux, 1835, iv. 385, atlas, })1. 85, f. 2; Monographia 12 ! ! (^^^()IMlYTlM and HOisnrvALiA, densiflora lii. 384 — 6, i. 233; h, slender, he.s chiefly !aves eom- ute, entire ; widened ; iling the es slender, ) or less 2- ral nerves similar to . (varying: n to Idaho Jrandegee, Spokane, .ug. 1892; 3n Valley, gon ( Hen- L871, 189; (Kootenai ille, Earle, Humboldt Almaden, Mountain, J80, Kern- ., Brande- Jrandegee, 92 ; Byron egee, July I Co., Mrs. '■. 1876, i. . Nat. Ve- inographia Onnfri'f'.'ii'uni, 1H35, 400, pi. 31, f. 2. — 0( iinfhcra tfrns/ffnra Lindhy, Bol. Reg. 1833, xix. 1)1. 15!)3. — Mostly a foot or two high, simple or with few ascending l)r!Ui(hos, green to hoar> , more oi- li'ss viUoiis ; leaves 1 to 3 in, long, lan- ceolate, acute, denticulate! to rather sharply serrate, the upper ubruj)tly becoming shorter, broadly ovate, acuminate, mostly entire, sometimes much crowded ; flowers in an often dense terminal spike, similar but shoi-ter clusters ending the braiH'hes; corolla 12 mm. long, deep vioU^t, mostly exceeding the subtending leaves; capsules stout, straight, usually blunt, terete, about 7 mm. long, shorter than the leaves, septifragal, with 4 bropd but low nerves; seeds rarely over 6 in each cell, pale at both ends, gen- erally very concave on the inner face and much deformed by mutual pressure, about .!) X 1.7 mm. (exception- ally varying from .(53 to 1.20 X 1.2(5 to 2.31 mm.). — Vancouver Island and Washington to Nevada and Lower California. Specimens examined from Vancouver ( Macoun, July 9 and Aug. 27, 1887), Wiishington ( Brandegee, 1883, 787; Yakima Co., Henderson, May 27, 1892, 2470; Seattle, Smith, July (5, 1-^89, 108; Piper, July 1 and Aug. 9, 1888, 27()1, and Miss Shumway, May 1892; Klickitat Co., Suksdorf, Aug. 8, 1881, 15), Oregon (Hall, 1871, 185, 18(), 187, 188 in part; Lyall, 18(50; Newberry, Williamson Sur- vey; Kellogg & Harford, 18(58-9,1152; Douglas ; Gcver, 591; Nuttall — types of imbn'cafa, sa/lriiia, and salicina albijlora; Dalles, Brandcgco, 1882; Grant's Pass, Bran- degee, Sept. 1885;' Clear Water, S[)alding), Califoi'uia (Fitch; Kellogg & Harford, 18(58-9, 275; Vasey, 1875; Brewer, 18j0-2, 811; Alta, Pringle, Sept. 29, 1882: Sierra Nevada Mts., Lcnimon, 1875 ; Susanville, Brandegee, July 2, 1892; Sonoma Co., Samuels, 72; Sonoma Valley, Torrey, 1865, 104; Sta. Lucia Mts., Vasey, July 1880, 205 and an albino, Brandegee, ]88f5; Placer Co., Vasey, 1880; Jolon, Vasey, July 1880, 20(5; Kern Co., Palmer, 1888, 141 — an albino; Oakland, Jones, 1881, 2358; Stanislaus 13 Mis.s<)i;i:i M)r\M(Ai, cakdkx. I' I 'I ll I! .11' River, Bigelow, 1853-4; Hcaldsburre variable mens from Mic'ia Mts., on Valley, 3, 557 and species and iracters, as r a possible rar. parvi- ;s ; but this buds, more ntire leaves with inourvod tonicntutu, thouirli in lialiit it hoars a rather close ix>('iiil)Iuiicf lo //. dmisfjiora. n. (;lrisi'()(}.\.m,\ ('ill-ran, Hull. Calif. Acad. llSHl, i. 12 ; Mrs. lirandcjrcc, Zoc, iii. I^TO. — A spau <(!• t\v;) hi; 8, two seeds, X 18. Plate 21, G, caeaium. — \, Habit, natural size; 2, flower, X 9? 8, stigma, X 37; 4, capsule, X 6; 6, section of capsule, X 16; 6, seed, X 18. Plate 22, G. pumilum. — 1-2, Habit, natural size; 8, flower, X 3; 4, stigma, X 37; 5, capsule, X 5; 6, section of capsule, X 15; 7, two seeds, X 18. Plate 23, Boiaduvalia glabella. — 1, Habit, half size; 2, branch, half size; 3, two stigmas, X 18; 4, two pollen tetrads, X 200; 5, capsule, X 1; 6, two seeds, X 18. Plate 24, /?. stn'cta. — 1, Habit, half size; 2, branch, natural size; 3, opened flower, X '>; *> stigma, X 18; 6, capsule, X 6; 6, four seeds, X 18; 7, pollen tetrad, X 200; 8, glandular and non-glandular hairs, X 200. Plate 25, B. densiflora. — 1, Branch, half size; 2, diagramatic section of flower, enlarged; 3, pollen tetrad, X 200; 4, capsule and bract, natural size; 5, capsule, X 3, and section X 3; 6, two seeds-, X 18. Plate 26, B. c leiatogama. — 1, Habit, half size; 2, smaller plant, natural aize 3, capsule, X 5> and section, X 5; 4, stigma, X 18; 5, seed, X 18. 16 ( . 'It i M fis, somewhat two stlRinafl, ; 6, olougatcd apsule In soe- ver, X 9; 8, 15; 6, seed, X •wer, X 8; 4, 7, two seeds, , branch, half capsule, X 1; Ltural size ; 3, 5, lour seeds, ndular hairs, imatic section 3 and bract, is-, X 18. plant, natural seed, X 18. liKti. Mil. r>'>i. (;\i;i>., \ (PI.. ■' KXK n (iAYOl'IIVTI M lASlOSl-KUMlM. ' 'i MM Bri'i. 5Io. 11(11. UAiii) , \<>t.. .'). flatb fit. MriMIIM it .'<>* EKir. Mo. Hut. .. Vol.. .'>. I'l.Atr |i». I (JAVOIMIVTIM UAMOSISSIMUM. Kl Kkpt. Mo. Hot. (iAHO., Voi. I'l.ATK n GAVoi'iiY'iuM (;aksh;.\i. 1{( iVWWBV Hkpt. Mo. nor. (;.\i(ii., vol. s n.MT, ij. (iAYUI'lIVTUM I'lI.MIIA'M. Hki't. Mo. Hot. »;auu., Vui,. ,'). I 'I, mi; i:?. UOlSUrVALIA LiLAI'.KLl.A. lU'.rr. Mo. Iior. (Jauh., s oi., liOlSUUVAI.IA STHICTA. '••"* Ukpt. Mo. Hot. Uari»., Vol,, .'i. I'l AlK *S. BOISDIIVAI.IV DKNSin.OKA. r , !*^flK;rj«ilBVl*»W« II KV L ItKI'T. M<>. Ilur. liAlllt , Nil ri.uK ■:>'<. IJOISDUVALIA CLEISTUGAMA.