On earth at the mouth of the Illicillewaet Canon, near Revelstoke, B.C., May 18th, 1890. (Macoun.)

.) D. fra ifolium, Lindb.; Lesq. & James, Mosses of N. America, 73; Canadian Musci, No. 41.

On rotten wood, near Lesser Slave Lake, Sept. 20th, 1872; also on logs at Hudson Hofe, Peace River. Lat. 55° 12'. 1872. (Macoun.)

(110.) D. longifolium, Hedw.; Lesq. & James, Mosses of N. America, 70; Canadian Musci, No. 38; Drumm. Musc. Bor. - Am. Nos. 93-94.

Greenland. (Fl. Gr.) Miquelon Island. (Delamare.) On rocks at Sudbury Junction, and along the north shore of Lake Superior, and common at Lake Nepigon and along the Dawson Route west of Lake

Superior; on rocks, Roger's Pass, Selkirk Mountains, B.C. (Macoun.) Crevices of rocks, Elk River, Rocky Mountains. (Dawson.) About Lake Superior (93), and at Great Bear Lake (94). (Drummond.)

(111.) D. albicans, Bruch & Schimp.; Lesq. & James, Mosses of N. America, 71; Canadian Musci, No. 404.

Crevices of rocks at the summit of the Gold Range, north of Griffin Lake, B.C., 1889, alt. 7,000 feet; on rocks along the Asulcan Glacier, Selkirk Mountains, and on rocks by the railway three miles below Hector, and at Lake Agnes, Rocky Mountains, 1891. (Macoun.) Greenland. (Fl. Gr.)

(112.) D. Bonjeani, De Not.; Braithw. Brit. Moss-Flora, 149.

D. pcdustre, Lesq. & James Mosses of N. America, 74; Canadian Musci No. 409.

In Dow's Swamp, near Ottawa; " Big Swamp," Murray, and five miles north of Colborne, Northumberland Co., Ont.; swamps, Porcupine Mountains, Man.; wet rocks, North Arm, Burrard Inlet, B.C.; and in wet woods at Victoria, Vancouver Island. (Macoun.) Peat bog at base of McKay's Mountain, Port Arthur. (Mrs. E. G. Britton.) Nulato and Sitka. (Roth. Alask.) Jakobshavn, Greenland. (R. Brown.)

*D. Columbiae, Kindb., Bull. Torr. Bot. Club, Vol. XVII., 86.

Caespitose, tomentose and yellowish green. Leaves ofen-erect, undulate above, ovate-lanceolate, obtuse or short-acute, serrate at the back and on the borders above; the uppermost cells oblong, the others linear, except the quadrate ones at the angles; costa narrower, disappearing below the apex. Capsule solitary, narrow-cylindric, curved, striate, pale brown, not strumose, beak as long as the capsule; pedicel yellow. Dioecious.

Differs from the true D. Bonjeani, De Not. (D. palustre, Schimp.) principally in the leaves being blunt, serrate below the middle, the costa serrate also below the middle and the capsule without a neck.

Damp woods, by the borders of ponds, Cedar Hill, near Victoria, 1887; and on Campbell Hill, Cache Creek, B.C., alt. 2,500 feet, May 25th, 1875. (Macoun.)

(113.) D. undulifolium, C. M. & Kindb. (n. sp.)

Dioecious. Plants robust; branches thick. Stem sparingly, and only the base radiculose, (furnished with rhizoids) 3-4 cm. high. Leaves green or golden glossy, faintly undulate, loosely appressed, broad ovate-lanceolate, nearly entire, acumen generally sab-obtuse; alar cells brown, the others narrow and porose, the uppermost oblong; costa not percurrent, smooth and narrow. Barren. Has often the habit of Orthothecium chryseum.

This species could be considered as intermediate between D. scofarium and D. Bergeri, but differs from both in its peculiar habit and the sparingly radiculose stem.

On earth near Fort Rupert, Vancouver Island, 1885. (Dawson.)

(114.) D. subpalustre, 0. M. & Kindb. (n. sp.)

Differs from the allied D. Bonjeani in the leaves being more concave, suddenly narrowed into a long setiform acumen; alar cells dark brown, forming distincter auricles; the outer perichetial leaves long-aristate, the inner obtusate or very short-apiculate and entire. The leaves are faintly undulate and slightly crispate.

On earth on rocks at Hector, Rocky Mountains; on rocks at Deer Park, Lower Arrow Lake, Columbia River, June 18th, 1890. (Macoun.)

(115.) D. Bergeri, Bland., Musc. fr. exs. III., No. 104 (1804).

D. Schraderi, Web. & Mohr. (1807); Lesq. & James, Mosses of N. America. 75; Canadian Musci, No. 45; Drumm. Musc. Bor. - Am., Nos. 87-88.

D.rugomm, Kindb. & var. rugulosum, Kindb., Ottawa Naturalist Vol. IV. 61,

Moist rocky places, not rare, especially about Norway House. (Drummond.) Wet woods, Bass River, N.B. (Fowler's Cat.) Peat bogs, Jupiter River and Salt Lake, Anticosti; peat bog, Louisburg, Cape Breton; cedar swamps, Hastings and Northumberland Co's., Ont.; Porcupine Mountains, Man.; mountain bogs, Lesser Slave Lake; bogs at Stephen, summit of Rocky Mountains; also in Roger's Pass, Selkirk Mountains. (Macoun.) Kotzebue Sound. (Roth. Alask.) Godhavn, Greenland. (Fl. Gr.) Miquelon Island. (Delàmare.) Peat bog near London, Ont. (J. Dearness.)

(116.) D. Drummondi, C. Muell.; Lesq. & James, Mosses of N America, 76; Canadian Musci, No. 47.

D. Starkii, var. major, Drumm. Musc. Bor. - Am. No. 84. D. undulatum, Turn., var., Drumm. Muse. Bor. - Am. No. 86.

Upper Canada in shady woods; very common. (Drummond.) Damp woods, Brackley Point, P.E.I.; peat bogs, Sudbury Junction, Hastings Co., and Lake Nepigon, Ont. (Macoun.) Woods near London, Ont. (J. Dearness.)

Var. trachyneuron, Kindb. (n. var.)

Stems shorter. Leaves smaller, narrower and looser, more densely and evidently serrate on the borders, snbuliform-cuspidate; alar cells yellow; costa not excurrent, rough also below the middle and upwards.

Cedar swamps at the base of the Oak Hills, Hastings Co., Ont., July 3lst, 1871. (Macoun.)

(117.) D. undulatum, Turn.; Lesq. & James, Mosses of N. America, 76; Canadian Musci, No. 48; Drumm. Musc. Bor. - Am.

No. 85.

Miquelon Island. (Delamare.) Dry woods, on the ground, Bass River, and Grand Lake, N.B. (Fowler's Cat.) Beau Lac, Madawaska, and swampy ground, Tobique River, N.B. (Hay.) Bogs, Tignish, P.E.I.; common in McKay's Woods, Stewart's Bush, Dow's Swamp and Mer Bleue, Ottawa; in cedar swamps throughout Ontario; North Bay, Lake Nipissing, woods at Lake Nepigon; swamps, Porcupine Mountains, Man.; at Donald, Columbia Valley, and Deer Park, Lower Arrow Lake, Columbia River, B.C.; and at Victoria, Vancouver Island. (Macoun.) In woods, Missinaibi River, Ont. (R. Bell.) Shady woods; common. (Drummond.) Among Sphagnum, near London, Ont. (J. Dearness.) Nashwaaksis, York Co., N.B. (J. Moser.)

(118.) D. spurium, Hedw,; Lesq. & James, Mosses of N. America, 75; Drumm. Musc. Bor. - Am. No. 90; Canadian Musci, No. 46 in part; barren.

About Lake Superior. (Drummond.) On rocks, North West Arm, Halifax, N.S.; on metamorphic rocks, Gatineau River at Chelsea, Que., and at Shannonville, Hastings Co., Ont., 1865. (Macoun.)

(119.) D. brachycaulon, Kindb. (n. sp.)

D. spurium, Canadian Musci, No. 46, in part.

Allied to Dicranum spurium, but differing in the short stem only 1 cm. high, the leaves smaller and shorter, oblong-ovate, acute, not acuminate, entire, not papillose at back, costa elevate, percurrent and smooth, alar cells brown, capsule small, pedicel 1 cm. long. This species is peculiar in its short leaves and the elevate costa.

On dry rocks in open woods near the lighthouse at Yarmouth, N.S., June 23rd, 1883. (Macoun.)

(120.) D. dipteroneuron, C. Muell., Beitr. zur Biyol. Nord_ Amerikas in Flora 14. (1887.)

Alaska. (0. Mueller.)

WACOUN.]