(585.) P. sexangulare, Floerke; Bull. Torr. Bot. Club, XVI., 96; Canadian Musci, No. 428.

On the summit of Copper Mountain, south of the Bow River at Castle Mountain, Rocky Mountains; on Mount Cheops, Selkirk Mountains, alt. 7,500 feet, B.C.; also on the Gold Range, north of Griffin Lake, B.C., alt. 7,000 feet. (Macoun.) Herald Island, north of Alaska. (Nelson.) Jakobshavn. (B. Brown.) Common in Greenland. (Fl. Gr.)

(586.) P. gracile, Menz.; Lesq. & James, Mosses of N. America. 264; Canadian Musci, No. 478.

New Harbor, Newfoundland. (Rev. A. Waghorne.) Miquelon Island, (DelÓmare.) Bogs near St. Andrews, N.B. (Hay.) Canaan Forks, N.B. (J. Moser.) North shore of Lake Superior. (Agassiz.) Mer Bleue, 12 miles from Ottawa, Ont.; on earth near the Gravel Pit, Belleville, Ont.; on earth and rocks in Boger'sPass, Selkirk Mountains, B.C.; on earth, Gold Range, north of Griffin's Lake, B.C.; alt. 7,000 feet. (Macoun.) Kotzebue Sound. (Both. Alask.)

(587.) P. formosum, Hedw.; Lesq. & James, Mosses of N. America, 264; Canadian Musci, No. 429.

Miquelon Island. (DelÓmare.) [Bay Bull Arm, Newfoundland. (Rev. A. Waghorne.)] (?) On earth in woods, Pelee Point, Lake Erie; on rocks at Revelstoke, and logs at Hastings, B.C. (Macoun.) Sitka Island, Alaska, 1891. (J. M. Macoun.) Alaska. (Nelson.)

(588.) P. Ohioense, Ben. & Card.; Coult. Bot. Gaz. XIII, 199;

Canadian Musci, No. 221.

Stem erect, simple or bipartite, 3-6 cm. long, a little tomentose below. Leaves spreading when moist, erect, flexuous when dry, from a sheathing base linear-acuminate, cuspidate, serrate; lamellae about 50, each in section of a row of 5-7 cells, the marginal one much larger, transversely dilated, about twice broader than high, very slightly convex, often almost plane. Perichetial leaves longer with a longer hyaline base. Pedicel 4-8 cm. long, reddish below, pale above. Capsule erect, finally horizontal, tetragonal or pentagonal, rarely hexagonal, acute-angled, rather narrowed toward the base, with a very small or indistinct hypophysis; length 5-7 mm., diameter 2-2 1/2 mm.; lid conic-acuminate, red at margin.

This species seems to include the greater part of the specimens formerly referred to P. formosum. On the ground at Bass River, N.B. (Fowler's Cat.) Canaan Forks, N.B. (J. Moser.) Woods, Montcalm Co., Que. (D' Urban.) In woods, Becscie River, Anticosti; woods, North Sydney, Cape Breton; Mount Stewart and Brackley Point, Prince Edward Island; along the Ste. Anne de Monts River, GaspÚ Co., Que.; on earth in woods at Casselman, near Ottawa; on earth in woods in Peterboro and Victoria counties, Ont.; also at North Bay Lake Nipissing; at Leamington, Lake Erie; in woods, near Fort William, Lake Superior; on earth and rocks along the Columbia River, above Revelstoke, B.C. (Macoun.)

(589.) P. conorhynch m Kindb. (n. sp.)

Differs from Polytrichum formosum in the leaves being canaliculate and the capsule shorter and broader, not attenuate at the base; differs from Polytrichum gracile also in the capsule, which is distinctly acute-angulate, the conic-rostrate lid and the long-sheathing leaves.

In a small bog along the C. P. Railway in Roger's Pass east of the summit. Selkirk Mountains, July 31st, 1890. (Macoun.)

(590.) P. piliferum, Schreb.; Lesq. & James, Mosses of N.America, 264; Canadian Musci, No. 222; Drumm. Musc. Bor. - Am., No. 278.

Grassy Mountains. (Drummond.) Gravelly knolls, Bass River, N.B. (Fowler's Cat.) Ste. Clotilde, Arthabaska Co., Que. (St. Cyr.) Miquelon Island. (DelÓmare.) On rocks, North West Arm, Halifax, N.S.; on earth in sandy woods, Murray, Northumberland Co., Ont.; barren ground and rocks, Lake Nepigon and Lake Nipissing, Ont.; at Hector, Rocky Mountains; on rocks at Deer Park and Sproat, Columbia River; on earth at New Westminster Junction, B.C.; very common at Victoria and Cedar Hill, also Mount Benson near Nanaimo, Vancouver Island. (Macoun.) Vancouver Island. (Lyall.) Alaska. (Nelson.) Kobbefjord, West Greenland, 28th June, 1884. (Warming & Holm.)

Var. Hoppei, Rabenh.

On Castle Mountain, Rocky Mountains; alt. 7,500. (Macoun.)

(591.) P. hyperboreum, R. Brown, Fl. Melv. Is., 69. Melville Islands. (R. Brown.) Common in Greenland. (Fl. Gr.)

(592.) P. boreale, Kindb., Laubm. Schwed. & Norweg.

Differing from the nearly allied P. hyperboreum, E. Br., principally in the leaves being distinctly dentate above; the apex is hyaline in the upper part, red in the lower.

St. Paul Island, Behring Sea, 30th July, 1891. (J. M. Macoun.)

(593.) P. juniperinum, Willd.; Lesq. & James, Mosses of N. America, 265; Canadian Musci, No. 223; Drumm. Musc. Bor. - Am., No. 277.

P. commune var. furmosum, Drumm. Musc. Bor. - Am., No. 276. P. pallidisetum var. Drumm. Musc. Bor. - Am., No. 280.

Grassy mountainous situations (No. 277); about York Factory, Hudson Bay (No. 276); upon the "Height of Land," Rocky Mountains (280). (Drummond.) Both sides of Baffin's Bay. (Capt. Boss.) Smith's Sound. (Dr. Kane.) Christianshaab, Greenland. (Fl. Gr.) Smith's Sound, between lat. 78°-82°. (Dr. Hayes.) Ste. Clotilde, Arthabaska Co., Que. (St. Cyr.) Miquelon Island. (DelÓmare.) Pictou Co., N.S. (McKay.) Dry hills and gravelly knolls everywhere in New Brunswick. (Fowler's Cat.) Dry places, Tobique River, N.B. (Hay.) In woods by stumps, Canaan Forks and Tay, N.B. (J. Moser.) Quite common around St. John and Placentia Bay, Newfoundland; Little Bay Islands, Labrador. (Rev. A. Waghorne.) Very abundant from the Atlantic to the Pacific, chiefly in old pastures by stumps and by lumber roads in woods, just as common west of the Rocky Mountains as east of them. (Macoun.) Saskatchewan. (Bourgeau.) Vancouver Island and British Columbia. (Lyall.) Common on knolls in woods and on upturned pine stumps, Dorchester and London, Ont. (J. Dearness.) Kotzebue Sound and Nulato. (Both. Alask.)

Tar. Waghornei, Kindb. (n. var.)

Differs in the leaves being dentate in the upper part, not at the lower arm only; marginal cells papillose, also other characters as in true P. juniperinum.

Deep Water Creek, Venison Tickle and Cape Charles, Labrador, August, 1891. (Rev. A. Waghorne.)

(594.) P. strictum, Banks; Lesq. & James, Mosses of N. America, 265; Canadian Musci, No. 224.

P. alpestre, Drumm. Musc. Bor. - Am., No. 281.

Swampy places; frequent. (Drummond.) Canaan Forks, N.B. (J. Moser.) In swamps at Nain, Labrador. (R. Bell.) On rocks, River

Rouge, Argenteuil Co., Que. (D'Urban.) Miquelon Island. (DelÓ-mare.) Harbor Breton and Broad Cove, Newfoundland. (Rev. A. Waghorne.) In bogs, Jupiter River, Anticosti; at Truro, N.S.; Brackley Point, and Otter Pond, Prince Edward Island; on Mount Albert, GaspÚ Co., Que.; at Morley and Banff, Rocky Mountains; and common in Roger's Pass, Selkirk Mountains; in bogs, at Blackwater River, and McLeod's Lake, B.C.; also Peace River near Dunvegan, lat. 56°. (Macoun.) Mountains south of Tulameen River, B.C.; alt. 6,000 feet. (Dawson.) Cascade Mountains, B.C. (Lyall.) Kotzebue Sound and Sitka. (Roth. Alask.) Jakobshavn, Greenland. (R. Brown.) Common in Greenland. (Fl. Gr.)

(595.) P. commune, Linn.; Lesq. & James, Mosses of N. America, 266.

P. pallidisetum, Drumm. Musc Bor. - Atu., No. 279.

In Canada. (Drummond.) Pictou Co., N.S. (McKay.) Miquelon Island. (DelÓmare.) New Harbor, Newfoundland. (Rev. A. Waghorne.) Damp shady places; common at Bass River, N.B. (Fowler's Cat.) In woods, Belledune, N.B. (Chalmers.) Canaan Forks, N.B. (J. Moser.) Damp woods, Missinaibi River, Ont. (R. Bell.) Common in swamps near London, Ont. (J. Dearness.) Sitka. (Roth. Alask.) Not uncommon in Greenland. (Fl. Gr.)

Var. perigoniale, Bruch & Schimp.

In swamps near Stirling, Hastings Co., Ont.; abundant at Pass Creek near Sproat, Columbia River, B.C.; also at McLeod's Lake, lat. 55°, B.C. (Macoun.)

Var. Canadense, Kindb. (n. var.); Canadian Musci, No. 563. Polytrichum commune, Canadian Musci, No. 225.

Differs principally in the low stem, about 6-8 cm. high, the pedicel not much longer, the blackish capsule much shorter than in the type which probably is very rare in Canada and only once examined by Kind berg.

On damp earth at Rustico Bay and Royalty Junction, Prince Edward Island; woods, Mount Albert, GaspÚ Co., Que.; McKay's woods, Ottawa, also at Belleville, Ont.; damp woods, Lake Nepigon; abundant on earth in the railway cuttings above the trestle at Albert Canon Station, Selkirk Mountains, B.C., May 29th, 1890. (Macoun.)