(836.) H, hispidulum, Brid.; Lesq. & James, Mosses of N. America, 378; Canadian Musci, No. 327.

Mooyie River, B.C. (Lyall.) Bass River, also Little Branch, Miramichi, N.B. (Fowler's Cat.) On the bases of trees, Canaan Forks, Queen's Co., and Elmwood, King's Co., N.B. (J. Moser.) On earth at

Truro, N.S.; on decayed wood at Campbellton, N.B.; roots of trees in shady woods, Gasps' Co., Que., not rare; on the bases of trees in woods around Ottawa; on earth at Carleton Place, near Ottawa; on old logs at Belleville and on the bases of trees, Brighton and Owen Sound, Ont.; on old logs at Lake Nipissing and Lake Nepigon, Ont.; decayed wood, Cypress Hills, Alberta; on earth at the bases of trees at Quesnel and Hastings, B.C. (Macoun.) At London, Ont. (J. Dearness.)

(837.) H. byssirameum, CM. &Kindb. (n. sp.)

Resembling a small form of H. Sommerfeltii, Myr., but the leaves are denticulate all around. Barren.

On the base of a dead tree in William Valentine's woods, Brighton, Northumberland Co., Ont., October 5th, 1888. (Macoun.)

(838.) H. Sommerfeltii, Myrin; Canadian Musci, 328.

H. stellatum var. polymorphum, Drumm. Musc Bor. - Am., No. 186.

On old logs, Never's Rapids, Queen's Co., N.B. (J. Moser.) Salmon River, Kent Co., N.B. (Fowler's Cat.) On logs at Belleville, Ont.; on the bases of trees at Ottawa; on the bases of trees at Leamington, Ont.; also on damp rocks at Sydenham Falls, Owen Sound, Ont.; on wet rocks, Kakabeka Falls, west of Fort William, Lake Superior; on the roots of trees along Peace River, lat. 56°; on earth along the Columbia River at Revelstoke, on logs at Quesnel, B.C.; also on mountains north of Griffin Lake and at Hastings, B.C. (Macoun.) In woods at Kingston, Ont. (Prof. Fowler.) Dripping rocks. (Drummond.)

(839.) H. chrysophyllum, Brid.; Lesq. & James. Mosses of N. America, 378; Canadian Musci, No. 329.

H. stellatum var. chrysophyllum, Drumm. Musc. Bor. - Am., No. 185.

About gravelly, springy places. (Drummond.) Bay Bull Arm, Placentia Bay, Newfoundland. (Rev. A. Waghorne.) On logs, Tobique River, N.B. (Hay.) On earth, Canaan Forks, Queen's Co., N.B. (J. Moser.) Pictou Co., N.S. (McKay.) On rocks along Ste. Anne des Monts River, Gaspe Co., Que.; on roots of trees in woods at Ottawa, and Carleton Place; on old logs in wet woods east of Belleville, Ont.; on stones in woods at Owen Sound, Ont.; on rocks, Lake Nepigon, Ont.; on roots of trees, Manitoba House, Man.; damp rocks in wet woods at Morley, Rocky Mountains; in swamps at Sicamous and Port Haney, Fraser River, B.C. (Macoun.) Near London, Ont. (J. Dearness.) Saskatchewan. (Bourgeau.)

(840.) H. unicostatum, C. M. & Kindb. (n. sp.); Canadian Musci, No. 590.

Differs from Hypnum chrysophyllum in the dense tufts, the stem more irregularly branching, creeping, the leaves shorter-acuminate, the alar cells smaller, not yellow, the costa more distinct, the capsule smaller, the perichetial leaves gradually acuminate-subulate or filiform-pointed with the acumen arcuate.

At Canaan Forks, Queen's Co., N.B. (J. Moser.) In the Mer Bleue near Ottawa, October 4th, 1890. (Macoun.) At Cataraqui, near Kingston, Out., May 23rd, 1884. (Prof. Fowler.)

(841.) H. decursivulum, C. M. & Kindb. (n. sp.); Canadian Musci, No. 514.

H. Sommerfeltii, Canadian Musci, No. 328, in part.

Differs from Hypnum chrysophyllum in the leaves being decurrent with a broader base, borders recurved at the angles; alar cells numerous, hyaline. Barren.

Abundant on old logs in a boggy place under the trestle just east of of Albert Canon Station, Selkirk Mountains, B.C., May 29th, 1890. (Macoun.) Near New Harbor, Newfoundland. (Rev. A. Waghorne.)

(842.) H. Columbiae, Kindb.

Amblystegium serpens' Columbiae, Kindb. Bull. Torr. Bot. Club. XVII. 279.

Tufts dense. Stems short, very tomentose, irregularly branching; branches short. Leaves narrower than in Hypnum chrysophyllum, from the narrow-ovate base gradually tapering into the acumen; borders denticulate all around, recurved at the angles; areolation often wide, as in Amblystegium; costa short, reaching to the acumen or sometimes longer. Capsule generally smaller and shorter than in H. chrysophyllum, curved; lid short-apiculate; peristome dark-yellow, not pale; perichetial leaves short-acuminate.

Differs from H. chrysophyllum in the narrower, denticulate leaves, from H. hispidulum and H. Sommerfeltii in the long costa.

On wet logs near a spring about one mile from Sicamous, B.C., on the road to Enderby, July 19th, 1889. (Macoun.)

(843.) H. Macounii, Kindb. Bull. Torr. Bot. Club, XVII., 279; Canadian Musci, No. 522.

H. Halleri, Drumm. Musc. Bor. - Am., No. 191.

Allied to Hypnum hispidulum. Habit of the European H. Halleri. Monoecious. Plants small, interlaced in dense brownish-green tufts.

Stems pinnate, prostrate, sparingly radiculose. Leaves densely crowded, squarrose-recurved, round-deltoid, short-acuminate, reflexed on the borders of the entire base to the denticulate acumen; alar cells quadrate, pellucid, not numerous, the other short-oblong or short-lanceolate; costa obsolete or none. Capsule small, narrow-cylindrical, slightly curved, annulus simple; basilar membrane low; lid convex, obtuse and not apiculate; pedicel reddish-brown, smooth, 2 cm. long. On earth by springs at Mount Stephen, also abundant forming thin mats on flat stones at Hector and on the slopes of Cathedral Mountain. Rocky Mountains, alt. 5,600 feet. (Macoun.) Bocks about the Portage River, in the Rocky Mountains. (Drummond.)

(844.) H. stellatum, Schreb.; Lesq. & James, Mosses of N. America, 379; Canadian Musci, No. 330.

Nottingham Island, Hudson Strait. (R. Bell.) Miquelon Island. (DelÓmare.) New Harbor, Newfoundland, and Fox Harbor, Labrador (Rev. A. Waghorne.) On earth in bogs and swamps at Gunn River and Becscie River, Anticosti; on earth in a meadow, GaspÚ Co., Que.; beaver meadow, Lake Nipissing; on boggy toil at Current River and Mamainse, Lake Superior; peaty meadow, Porcupine Mountains, Man.; in swamps at Murley and Stephen, Rocky Mountains; in bogs near Fort Assiniboine, Athabasca River; in a limestone spring, Sicamous, B.C.; also on the mountains north of Griffin Lake, Gold Range, B.C (Macoun.) Greenland. (Fl. Gr.) In swamps at London, Ont. (J. Dearness.)

Var. protensum, Bruch & Schimp.; Canadian Musci, No. 331.

In beaver meadows, Huntingdon, Hastings Co., Ont.; also in swampy meadows at Stephen and Morley, Rocky Mountains-; in limestone springs, shore of Lake Mara, near Sicamous, B.C. (Macoun.)

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

Leaves smaller, decurrent, abruptly acuminate from a short-ovate base; alar cells more numerous. Not found fruiting.

Amongst Dieranum scoparium on earth by springs in a swamp near Brighton, Northumberland Co., Ont., October 5th, 1888. (Macoun.)

(845.) H. polygamum, Wils.; Lesq. & James, Mosses of N. America, 379.

H. stellatum, Drumm. Musc. Bor. - Am., No. 184.

Swamps; not frequent. (Drummond.) In the "Big Swamp," Murray, Northumberland Co., Ont.; on earth in the valley of the Thompson

River at Kamloops. B.C. (Macoun.) Greenland. (Fl. Gr.) Miquelon Island. (DelÓmare.) At New Harbor, White Bay and Blaketown, Newfoundland, and at Battle Harbor and Fox Harbor, Labrador. (Rev. A. Waghorne.) At Canaan Forks, Queen's Co., N.B. (J. Moser.)