(815.) A. minutissimum, (Sulliv. & Lesq.)

Hypnum minutissimum, Sulliv. & Lesq.; Lesq. & James, Mosses of N. America, 371; Canadian Musci, No. 541.

On rocks, North Hastings, Ont.; on earth at the outlet of Lake Louise, Rocky Mountains; also on earth at Revelstoke, Columbia River, B.C. (Macoun.)

(816.) A. Sprucei, Bruch & Schimp. Bryol. Europ.

Hypnum Sprucei, Bruch & Schimp Ms.; Lesq. & James, Mosses of N.

America, 372; Canadian Musci, No. 315. H. confervoides, Drumm. Musc. Bor. Am., No. 100.

Shady banks among the Rocky Mountains. (Drummond.) On earth, Mount Albert, GaspÚ Co., Que.; on trees in Dow's swamp near Ottawa; on old stumps in Brighton, Ont.; on old stumps at Hudson Hope, Peace River, lat. 56°; on bases of stumps and on earth under rocks at Hector, and on old stumps, Lake Louise, Rocky Mountains; on earth in woods at Revelstoke, Columbia River, B.C.; on stumps at Lytton, B.C.; and on stumps at Nanaimo, Vancouver Island; on stumps near Lesser Slave Lake, N.W.T. (Macoun.) Greenland. (Fl. Gr.)

(817.) A. speirOPhyllum, Kindb. Ott. Nat. IV., 64.

Plants loosely caespitose, dark-green. Stem capillary, irregularly ramulose, not or sparingly radiculose. Leaves small, long-distant, spreading, subcordate or oval-oblong, blunt or sub-acute, entire or denticulate; cells short; costa sub-percurrent, broad, sometimes very distinct. Barren. Probably dioecious. Habit of Amblystegium Sprucei.

On rocks at Canaan Forks, Queen's Co., N.B., November, 1889. (J. Moser.)

(818.) A. fenestratum, Kindb.

A. tenuifolium, Kindb. Ott. Nat. IV., 65.

Plants loosely coherent, green; stems capillary, irregularly ramulose. Leaves small, spreading, very narrow, ovate-lanceolate, acute, denticulate; cells dilated but elongate; costa more or less distinct. Barren. Habit of Amblystegium Sprucei.

On the borders of a pond near London, Ont., June, 1889. (J. Dearness.)

(819.) A. subtile, Bruch & Schimp. Bryol. Europ.

Hypnum subtile, Hoffm.; Lesq. & James, Mosses of N. America, 372; Canadian Musci, No. 316; Drumm. Musc. Bor. - Am., No. 227.

On the roots of trees in Upper Canada (Ontario); at Holland Landing, etc. (Drummond.) On the bases of trees in McKay's woods and Low's swamp, Ottawa; very abundant also on trees at Owen Sound, Ont. (Macoun.)

(820.) A. confervoides, Bruch & Schimp. Bryol. Europ.

Hynum confervoides, Brid.; Lesq. & James, Mosses of N. America, 372; Canadian Musci, No. 317.

On stones in woods, Canaan Forks, Queen's Co., N.B. (J. Moser.) On flat limestone rocks in McKay's woods and in woods west of Ottawa; on limestone boulders in woods around Belleville, Ont.; on flat limestone rocks in woods at Owen Sound, Ont.; also on limestone rocks at Hector, Rocky Mountains. (Macoun.)

(821.) A. Yuratzkae, Schimp. Synops. ed. 1.

Hypnum Zuratzskae, Canadian Musci, No. 4G6.

On dead wood, stones and bases of trees in damp woods around Ottawa; also on the bases of trees in woods at Owen Sound, Ont.; on old logs west of Revelstoke, B.C. (Macoun.)

(822.) A. serpens, Bruch & Schimp., Bryol. Europ.

Hypnum serpens, Linn.; Lesq. & James, Mosses of N. America, 373; Canadian Musci, No. 318; Drumm. Musc. Bor. - Am., No. 187.

Roots of trees in shady situations. (Drummond.) On earth at the bases of trees at Bass River and Frederic ton, N.B. (Fowler's Cat.) On earth in woods, Canaan Forks, Queen's Co. N.B. (J. Moser.) Miquelon Island. (DelÓmare.) Vicinity of Quebec. (St. Cyr.) Battle Harbor, Labrador. (Rev. A. Waghorne.) Decayed wood, South-west Point, Anticosti; on earth, Brackley Point, Prince Edward Island; on earth in woods at Ottawa, Belleville, Wooler, Niagara Falls and Owen Sound, Ont.; on roots of trees, Moose Mountain, Assiniboia; on earth at Hudson Hope, Peace River, lat. 56°; abundant at the bases of trees north of Edmonton, N.W.T.; on earth at Quesnel, Spence's Bridge, Sicamous, Kamloops and Agassiz, B.C.; on earth at Cedar Hill, near Victoria, Vancouver Island. (Macoun). Near Dorchester, Middlesex Co., Ont. (J. Dearness.) Greenland. (Fl. Gr.)

Var. xanthodictyon, Kindb. (n. var.) (A. serpens * lutescens, Kindb. MS.)

Tufts loose, yellow-brown. Stem pinnate. Leaves, from an ovate-oblong base, acuminate, denticulate or entire; the alar and often also the lower basal cells quadrate, yellowish, the other oblong except the inner, sublinear near the costa and in the acumen. Perichetial leaves very small, nerveless.

Although the areolation of the leaves differs very much from the commoner forms of Amblystegium serpens, we dare not propose the present as a distinct species.

On stones along St. Mary's River, Anticosti, August 29th, 1883. (Macoun.)

(823.) A. porphyrhizum, (Lindb.) Schimp. Synops. muscor. Euro.

Hypnum porphyrhizum, Canadian Musci, No. 319.

H. radicale, Lesq. & James, Mosses of N. America, 373, in part; Drumm. Musc. Bor. - Am., No. 189.

On decaying trees. (Drummond.) Fredoricton, N.B. (Fowler's Cat.) On damp earth, Tobique River, N.B. (Hay.) Never's Rapids and Canaan Forks, Queen's Co., N.B. (J. Moser.) Miquelon Island. (DelÓmare.) Fox Harbor, Labrador. (Rev. A. Waghorne.) On wet earth and stones, Brackley Point, Prince Edward Island; decayed wood, Pictou, N.S.; wet ground at Campbellton, N.B.; on wet rocks, South-west Point, Anticosti; on stones in woods at Ottawa, also at Carleton Place, Brighton, Belleville and Owen bound, Ont.; on damp ground, Manitoba House, Lake Manitoba, Man.; on wet logs and rocks at Morley and at Lake Louise, Rocky Mountains; on earth along Lesser Slave Lake, N.W.T. (Macoun.) Saskatchewan; and by the Assiniboine at Fort Ellice. (Bourgeau.) Pack River, Galton Mountains, B.C. (Lyall.) At London, Ont. (J. Dearness.)

(824.) A. varium, (Hedw.) Lindb.

Hypnum radicale, Lesq. & James, Mosses of N. America, 373, in part; Canadian Musci, No. 320.

Near Fredericton, N.B. (Prof. Fowler.) Miquelon Island. (DelÓ-mare.) On roots of trees, Canaan Forks, Queen's Co., N.B. (J. Moser.) On earth at Brackley Point, Prince Edward Island; roots of trees, Gunn River, Anticosti; on stones in McKay's woods, Ottawa; damp ground, Pipestone Creek, and along Lake Winnipegoosis, Man. (Macoun.) Saskatchewan. (Bourgeau.) Pend d'Oreille River, B.C. (Lyall.)