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Tous les autres exempiaires originaux sont ffiimfo en commenpant par la premiire page qui comporte une empreinte d'impression ou d'illustration et en terminant par ia darniire page qui comporte une telle empreinte. Un des symboles suivants apparattra sur la derniire image de cheque microffiche, selon Ie cas: Ie symbols — ► signiffie "A SUIVRE", ie symbols V signiffie "FIN ". Les cartes, planches, tableaux, etc., peuvent Atrs ffilmte A des taux de reduction diffff^rents. Lorsque Ie document est trop grand pour dtre reproduit en un seui cliche, il est ffiimd A partir de I'angle supArieur gauche, de gauche d droite, et de haut en bas, en prenant ie nombre d'images nAcessaire. Les diagrammes suivants iilustrent la mAthode. 1 2 3 1 2 3 4 5 6 [Reprinted from Ottawa Natukalist.) NEW CANADIAN MOSSES. Described hy Dr. Nils G. Kindherq, Linhopimj, Sweden, 1880. (Communicated by Prof. John Macoun, M.A., F.L.S., F.R.S.C.) Dicranum rngosnm, Kindb. N. sp. Leaves very undulate, acute, fi'om the middle dentate at the papil- lose borders ; cells not rarely porose, the n|>pHr short, the others long and narrow, except the hyaline alar and the pale-yellow basal ones ; costa narrow, subpercurrent, dentate at the back from the middle. Bari'en. Allied to D. Shraderi. — In dunii) woods near Halifax, Nova Scotia (June 91st, 1883). J. Macoun, Coll. Var. ruguloaum. Kindb N. v. Diffei's in the leaves, being sliglitjy undulate, subobtuse, vjanalicu- late; the alar cells pale brown, the costa le.ss dentate. Capsule oblique, evidently furrowed in a dry state. — In the Big Swamp, Murray, Northumberland Co., Ont. (October 10th, 1878.) J. Macoun, Coll. Dicranurri Drnmmondii, Bland, v. trachyneuron, Kindb. N. v. Stems shorter than vy}H>. Leaves smaller, narrower and loosej", more densely and evidently sta-rate on the borders, subuliform-cuspidate; alar cells yellow ; costa not excurrent, rough also below the middle and upwards. — Cedar swanij)s at the base of the Oak Hills, Hastings Co., Ont. (August, 24th, 1876.) J. Macoun, Coll. Desmatodon cernuus, Bruch & Schimp. vai-. xanthopus, Kindb. N. var. Leaves less chloiophyllous than the type, costa virescent. Cai)snle larger ; teeth more united ; pedicel yellow. — On the the banks of Boggy Creek, Manitoba, where the " Carleton trail " crossed it (August 10th, 1872.) John Macoun, Coll. Encalypta rhabdocarjm, Schwmger. var. leiomitra, Kindb. N. v. Calyptra smooth ; peristomial teeth blunt ; spores larger, about 0.05 mm.; costa vanishing at the apex of the leaves. — On rocks along the Olearwatar River, Athabasca, Lat. 57^ (July llth, 1888.) J. M. Macoun, Coll. 7 ;>-. Physcomitrium strangulatam, Kindb. N. sp. Differs from P. pyriforme in the leaves being shorter, obo\'ate- lingulate, more or less aciiniinate, often sei-rate below tlie middle ; costa longer, subpercurrent ; capsule (unripe) larger, constricted under tlie orifice ; calyptra longer ; lid witTiout a beak ; pedicel flexuous or curved. — In a ditcb, Port Dover, Ont. John Dearness, Coll. Webera fontana, Kindb. N. sp. Allied to W. albicans, but quite green, leaves not decurrent, more denticulate, at least to the middle. Banen. — In wet springy places at Canaan Forks, Queen's Co., New Brunswick (November, 1889). J. Moser, Coll. Bryum pendulum, Schimp. x cylindricura, Kindb. N. Subsp. Capsule narrow, cylindric-oblong ; lid deplanate ; spores small, scarcely 0.22 mm. long ; flowers dioecious ; stem-leaves ovate ; costa red, shortrexcurrent. — On wet rocks, Kananaskis Falls, Bocky Mountains (June 23rd, 1886). J. Macoun, Coll. » Thalia compacta, Kindb N. sp. Stems closely creeping. Tufts green, very dense and thick. Branches erect, terete, obtuse and unilateral. Leaves cochleariform, rotundate- obtuse and short-apiculate, very scabrous at the back, with simple in- curved papilliferous cilise ; borders spinulose-dentate or fimbriate- ciliate ; cilise long, curved up and dentate ; costa obsolete or very short. Perichetial leaves oblong-lanceolate, narrowly-acuminate, fimbriate. Capsule pale-brown, ovate-cylindrical ; teeth subulate, short and broad, horizontally divaricate when moist, distantly articulate, dusky, the top a^'ticle cleft ; basilar membrane short, scarcely \ the length of the teeth, without segments ; operculum conic obtuse, not curved, J the length of the capsule ; pedicel smooth scarcely 1 cm. long. Differs from Thelia hirtella in the longer branches, the larger and more pellucid leaves, the greater leaf-cells and the longer, thicker capsule, alio in the peristome. — Abundant on the stems of young maples in the central counties of Ontario. Fruiting abundantly in Seymour, Northumberland Co., and forming thick girdles about four feet from the ground. John Macoun, Coll, e- ta ft le 3 Loskea nerrosa, Myrin, var flagellifera, Kindb, N. var. Stem furnished with numerous flagelliform branchlets ; leaves small. — On trees in McKay's woods near Otttiwa (Oct. 24th, 1885), J. Macoun, Coll. Thudium lignicola, Kindb. N. sp. Monoecious. Tufts yellowish or bright gi-een. Stems simply pinnate with few rhizoids and short, scarcely ramose, paraphyllia ; branches close, distichous, attenuate, flexuous or slightly recurved. Stem- leaves from the broad cordate base attenuate to a long, often curved, point, faintly striate, reflexed on the borders ; branch-leaves shorter, acuminate ; all denticulate from the middle upward and papillose at the back or on both sides ; cells obscure and rounded ; costa vanishing in or below the apex. Capsule cylindical, arcuate and light brown ; teeth pale ; cilise long, perfect ; annulus double ; lid conical. Differs from T. Blandovii in the shorter artolations of the leaf-cells, the smaller capsule and the shorter paraphyllia. — On rotten logs along the base of the Porcupine Mountains, Manitoba (July 29th, 1881). John Macoun, Coll. Cylindrothecium cladorrhizans (Hedw) Sulliv. Non Schimp. This species differs from the European C ylindrothecmm Schleicheri Bruch, & Schimj), principally in the easily detached annulus of the cap- sule (Demeteir- Revue Bryol, 1885, No. 6). — On rotten logs and on stones and roots of trees in woods ; Ontario. Comir^on at Ottawa. Brachythecium rivulare, Bruch Ms. x Novaj-Brunsvicise, Kindb. N. Subsi). Stem irregularly divided ; branches simple and elongate. Leaves glossy, ovate, blunt or short-acute, striate, decurrent, indistinctly denti- culate above or from the middle ; cells dilatate, principally the lower and the uppermost, the alar and basilar finally orange-reddish, the alar rarely greater ; costa short and simple. — On a horse trough at Canaan Forks, Queen's Co., New Brunswick (October, 1889). J. Moser, Coll. Brachythecium cyrtophylhim, Kindb. N. sp. Habit of a small form pf li. albicans. Plants ctespitose, green and faintly glossy. Stems irregularly divided, not creeping ; branchlets .y ^afcjjj j^ f r^- filiform sub-obtuse. Leaves small, close, loosely appressetl when dry, open-ereci when moistened, ovate acute or short acuminate, not suicate or decurrent, serrulate at least above the midiile ; borders recurved below the middle ; areolation loose ; upper cells nai rowly rhomboidal, inner suVilinear ; alar quadrate somewhat luiuierous, chlorophyllose ; costa stout leaching to 5. Porigonial h;av('s ocostato. Di(eci()us. — On elm logs in thick woods, Brighton, NorthuinliorlHad Co , Ontario (October 6th, 1888). J. Macoun, Coll. Isothecium (?) Dawsoiii, Kindb. N. sp. Tufts soft, bright green intiicate. Steins slender, filiform, irregu- larly branching, sparingly radiculose ; branclikts short, flexuous or incurved. Leaves sniall, spreading, loose or not crowded, ovateoblong, cuspidate or filiform-acuminate, at the base slightly reflexed on the borders, denticulate above, pellucid but sometimes faintly papillose ; most of the cells narrow-lanceolate, the basal and marginal quadrate- oblong ; costa none or very short and simple. Capsule oblong, pale brown, not striate ; lid obliquely short beaked ; annulus large, [>edicel smooth, bright red-yellow, A^ cm. long. Dioecious. Habit of Pylaisia velutina. — On the base of trees in woods, Jupiter River, Anticosti (August 26th, 1883). J. Macoun, Coll. Rhyncostegium (?) aneuron, Kindb. N. sp. Tufts dense, green and glossy. Leaves distichous, crowded and patent, flat, ovate-oblong, aciite or short-acuminate estriate, entire or denticulate above the middle, decurrent ; cells very long and narrow, the alar large, hyaline and subquadrate ; costa none or obsolete. Cai)sule cylindric-obovate, horizontally curved ; teeth yellow ; pedicel smooth, 2 cm. long ; lid unknown. Probably diceeious. — This species could possi- bly be referred to Pliujlothecium. On dead wood in Dow's Swamp, near Ottawa (October 17th, 1884). J. Macoun, Coll. Amblystegium speciophyllum, Kindb. N". sp. Plants loosely caispitose, dark green. Stems capillary, irregularly ramulose, not or sparingly radiculose. Leaves small, long-distant, spread- ing, subcordate or oval oblong, blunt or sub-aoute, entire or dentif^u. late ; cells short ; costa sub-percurrent, broad, .sometimes very distinct leii dry, ; silicate [•eciu'ved mboid-al, ihyllose ; us. — On Ontario 1, irregu- scuous or ieoblong, [1 on the papillose ; qnadnite- ong, pale ;e, i)edicel ' Pylaisia Auticosti Barren. Probably dicecious. Habit of Amhlysteyium S/yrucei. On rocks at Canaan Forks, Queen's Co., New Brunswick (November, 1879). J. Moser, Coll. Amblysteginm tenuifoliuui, Kindb. N. sp Plants loosely coherent, green ; stems capillary, irregularly ramu- lose. Leaves small, far apart, spreading, very narrow, ovate-lanceolate acute, often denticulate ; cells dilated but .longate ; costa more or less distinct. Barren. Habit of AmUysteyimn SpniceL— On the borders of a pond near London, Ont. (June, 1889). John Dearness, Coll. Hypnura (Harpidiura) Moseri, Kindb. N. sp. Differing from //. undnatum in the leaves not being striate, but sometimes recurved at the base ; costa faint, often failing ; differing from all other //«r/>«Zta in the stem being densely radiculose.— On the base and trunks of poplar trees in woods at Canaan Foiks, Queen's Co., New Brunswick (December 30th, 1889). J. Moser, Coll. )wded and entire or larrow, the Capsule smooth, 2 :ould possi- wanip, near irregularly ant, spread- or deutirn. sry distinct