Allied to Bryum Muehlenbeckii, but differing principally in the color of the plant, the leaves thinner, broader and shorter, at the apex patent or sometimes reflexed, not cucullate.

On dripping rocks on the face of a small waterfall in a brook just west of the ferry at Kamloops, B.C., June 18th, 1889. (Macoun.)

(493.) B. miniatum, Lesq.; Lesq. & James, Mosses of N. America, 233.

On wet rocks on Sproat Mountain, Columbia River, B.C. (Macoun.)

(494.) B. capitellatum, C. M. & Kindb. (n. sp.)

B. minialum, Canadian Musci, No. 175, in part.

Tufts small compact, yellowish green above, reddish-rufescent below. Stems (primary branches) subjulaceous, clavate, acute, radiculose at the base, about 1 cm. high; innovations short. Leaves gradually larger upwards, not decurrent, very concave, not margined nor revolute at the entire borders; areolation wide and pellucid, upper cells sub-rhomboidal, the lower sub-rectangular; the lowest leaves very small, short-elliptic and blunt, loosely disposed, the other crowded, the median suboval and blunt, the uppermost ovate-oblong, subacute; costa finally red, percurrent in the upper leaves, abbreviate in the lower. Barren.

Probably allied to Bryum Atwaterioe and B. miniatum, which both differ in the leaf-cells being narrower and yellow, the leaves obtuse and cucullate at the apex, faintly revolute at the borders below the middle; the last has smaller leaves and shorter marginal cells.

Borders of ditches at Comox, Vancouver Island, April 30th, 1887. (Macoun.)

(495.) B. Atwateriee, C. Muell.; Lesq. & James, Mosses of N. America, 234; Canadian Musci, No. 176.

B. Macounii, Aust. in Coult. Bot. Gaz. II. 110.

On wet rocks along Gull Lake, Addington Co., Ont.; abundant on wet rocks, Sproat Mountain, Columbia River; wet rocks, North Arm, Burrard Inlet, B.C.; Mount Erskine, Salt Spring Island, Gulf of Georgia; abundant on wet rocks near Victoria and at Comox, Vancouver Island; also on wet rocks along Stewart's -River, northern British Columbia. (Macoun.)

(49G.) B. argenteum, Linn.; Lesq. & James, Mosses of N. America, 234; Canadian Musci, No. 177; Drumm. Musc. Bor. - Am., No. 251.

Common in various situations. (Drummond.) On earth or stones, Truro, N.S. (Fowler's Cat.) Common on earth by roadsides and paths, and on bare rocks, chiefly the var. lanatum. Quite common in Ontario and westward. On earth, Manitoba House, Lake Manitoba, Man.; also at Edmonton, Athabasca; and McLeod's Lake, lat. 55°; and at Cache Creek, B.C. (Macoun.) Very common on sandy soil at London, Ont. (J. Dearn ess.) New Harbor and Chance Cove, Newfoundland. (R,ev. A. Waghorne.) Rocky Mountains. (Bourgeau.) Disco Island, G reenland. (Fl. Gr.) Iktigalik, Alaska. (Both. Alask.) St. Paul Island, Behring Sea. 1891. (J. M. Macoun.)

Var. lanatum, Bruch & Schimp.

Common on earth at Ottawa, Belleville and Owen Sound, Ont.; Cove Head, Prince Edward Island; on rocks at Morley, Rocky Mountains; and at Revelstoke and Deer Park on the Columbia River, B.C. (Macoun.) On sandy knolls at London, Ont. (J. Dearness.)

(497.) B. caespiticium, Linn.; Lesq. & James, Mosses of N. America, 235; Canadian Musci, No. 178.

Chance Cove, Newfoundland; Fox Harbor and Vesuvius Pickle, Labrador. (Rev. A. Waghorne.) On dry ground, Bass River, N.B. (Fowler's Cat.) On earth, Queen's Co., N.B. (J. Moser.) Halifax and Pictou counties, N.S. (McKay.) River du Loup (en bas,) Que. (St. Cyr.) Common on earth in open places in woods and in pastures across the continent. Brackley Point and Cove Head, Prince Edward Island; at Ste. Anne des Monts, Gaspé Co., Que.; abundant at Ottawa and Belleville, Ont.; amongst rocks at Lake Nepigon; in pastures, where water has stood, at Morley and Banff, Rocky Mountains; in Roger's Pass, Selkirk Mountains; also at Revelstoke, Deer Park, Cache Creek, Spence's Bridge and Lytton, B.C.; north of Edmonton, Athabasca. (Macoun.) On logs at Lobourough Lake, near Kingston, Ont. (Prof. Fowler.) Little Whale River, Hudson Bay. (G. Barnston.) Clearwater river, N.W.T., lat. 57°. (J. M. Macoun.) Jakobshavn, Greenland. (B. Brown.) Big Duck Island, Baffins' Bay. (J. Sadler.)

(498.) B. synoico-caespiticium, C. M. & Kindb. (n. sp.); Canadian Musci, No. 513.

Tufts dense, about 1 cm. high, radiculose only at the base, green above, brown-decolorate below. Leaves erect, not decurrent, subovate, acuminate, not margined, recurved at the borders, slightly denticulate above; costa long-excurrent, very rigid, thick and often denticulate, light-brown. Capsule turgid, oval, very short-necked, not, or slightly, constricted below the mouth, pendent; peristome perfect; lid low and umbonate; spores about 0.015 mm.; pedicel geniculate below the middle, arcuate at the apex, about 5 cm. long, thick and red. Synoecious.

This species is very different from the allied Bryum caespiticium in the synoecious inflorescence, the larger spores and the long, geniculate pedicel of the capsule.

On earth amongst gravel in the old channels of the Illecillewaet River below the Canon at Revelstoke, B.C., May 27th, 1890. (Macoun.)

(499.) B. Vancouveriense, Kindb., Bull. Torr. Bot. Club, XVI., 95; Canadian Musci, No. 457.

Differs from B. caespiticium in the leaves being longer acuminate, at the base red, and reflexed only below the middle; cells small, upper very narrow; costa very thick, excurrent in most of the leaves; capsule not pendent and not constricted below the mouth, lid deplanate; spores larger, about 0.015 mm.; stem indistinct with gemmiform innovations; pedicel very long, 4-5 cm.

On wet slopes of Mount Finlayson at Goldstream, Vancouver Island, June 28th, 1887. (Macoun.)

(500.) B. microglobum, C. M. & Kindb. (n. sp.)

Tufts compact, green, radiculose below, small and about 1 cm. high: branches very short, bearing small buds. Leaves narrow-margined, subentire: stem-leaves ovate-oblong and short-acuminate, faintly revolute at the borders, branch-leaves ovate-acute and not revolute; upper cells short except the narrow marginal ones; costa more or less short-excurrent. Capsule small, inclined, pale, globose-pyriform small-mouthed; peristome perfect; teeth pale; cilia short but appen-diculate; lid convex with a conical mammilla; pedicel arcuate at apex, about 3 cm. long. Dioecious.