(825.) A. orthocladon, (Beauv.) Lesq. & James.

Hypnum orthocladon, Beauv.; Lesq. & James, Mosses of N. America, 374; Canadian Musci, No. 337, in part.

On stones in brooks at Belleville, Ont.; also in brooks and larger streams around Owen Sound, Ont. (Macoun.) Kent Co., N.B. (Fowler's Cat.) (Pictou Co., N.S. (McKay.) ?)

(826.) A. irriguum, (Wils.) Bruch & Schimp. Bryol. Europ.

Hypnum irriguum, Lesq. & James, Mosses of N. America, 374.

On wet limestone rocks along the Moira River at Belleville, July 11th, 1878. (Macoun.)

Var. spinifolium, Lesq. & James; Canadian Musci, No. 321.

On boulders in the Kaministiquia River, below Kakabeka Falls, west of Lake Superior. (Macoun.)

(827.) A. fluviatile, Bruch & Schimp. Bryol. Europ. t. 567.

Hypnum fluviatile, Swartz; Lesq. & James, Mosses of N. America, 375; Canadian Musci, No. 446.

On stones in brooks, Queen's Co., N.B. (J. Moser.) On rocks, St. John River, Fredericton, N.B. (Prof. Fowler.) Blaketown Harbor, Newfoundland. (Rev. A. Waghorne.) On rocks in the brook that discharges Kingsmere four miles west of Chelsea, Que.; on rocks in the Sydenham and other rivers around Owen Sound, Ont. (Macoun.) On stones in brooks near London, Ont. (J. Dearness.) Near Owen Sound, Ont. (Mrs. Hoy.) On rocks at Kingston, Ont. (Prof. Fowler.)

(828.) A. curvipes, Guemb., Bryol. Europ.

On earth in Dow's Swamp, near Ottawa; on logs, Huntingdon, North Hastings, Ont., July 19th, 1868. (Macoun.)

(829.) A adnaturn, (Hedw.) Lesq. & James.

Hypnum adnatum, Hedw.; Lesq. & James, Mosses of N. America, 375;

Canadian Musci, No. 322, in part. Hypnum adnalum var., Canadian Musci, No. 323.

On stones in woods, Canaan Forks, Queen's Co., N.B. (J. Moser.) On flat stones in McKay's Woods, near Ottawa; also abundant in woods at Brighton, Wooler, Belleville and Owen Sound, Ont.; at Lake Agnes, Rocky Mountains. (Macoun.) On stones at Delaware and London, Ont. (J. Dearness.)

(830.) A. dissitifolium, Kindb. (n. sp.)

Tufts compact, sparingly radicant, green, not glossy. Leaves very loosely disposed, long-decurrent, ovate-oblong, short-acuminate, denticulate all around; areolation loose, the upper cells narrower; the alar larger, quadrate and well distinct, as chlorophyllose as the other cells; costa percurrent. Inflorescence probably dioecious; only male flowers found. This species is nearly allied to Amblystegium compactum, which grows chiefly on decayed wood.

On flat limestone rocks which receive the dripping of water at the falls on the rivers, flowing into the head of Owen Sound Bay; in similar situations near the Whirlpool, Niagara Falls, September 24th,. 1890. (Macoun.)

(831.) A. compactum, (C. Muell.) Bruch & Schimp.

Hypnum compactum, C. Muell.; Lesq. & James, Mosses of N. America, 375-H.serpens var. compactum, Drumm. Musc. Bor. - Am., No. 188.

On the ground in moist places. (Drummond.) On the bases of trees, Canaan Forks, Queen's Co., N.B. (J. Moser.) Bay Bull Arm, Placen-tia Bay, Newfoundland. (Rev. A. Waghorne.) On decayed wood in a swamp at Carleton Place, Ont.; on rocks at Colpoy's Bay, Lake Huron.; on rocks, on islands in Lake Nepigon, Ont.; on the tufa mounds at Banff, Rocky Mountains. (Macoun.)

(832.) A. subcompactum, C. M. & Kindb. (n. sp.) Hypnum compactum, Canadian Musci, No. 324.

Differs from Amblystegium compactum (Drummond, No. 188) in the stems being thicker, the leaves larger and longer, also in the asymmetric capsule, curved in the younger state, at least doubly greater. The British Columbian specimens have a peculiar habit; the tufts are decolorate below, bright green above, the stems are erect, about 2 cm. high.

Growing in thick tufts at the bases of trees around springs and the margins of bogs at Spence's Bridge, Clinton, and along Blackwater River, B.C., June 10th, 1875; on wet rocks near the Whirlpool, Niagara Falls. (Macoun.)

(833.) A. riparium, (Linn.) Bruch & Schimp. Bryol. Europ.

Hypnum riparium, Linn.; Lesq. & James, Mosses of N. America, 376;

Canadian Musci, No. 325; Drumm. Musc. Bor. - Am., No. 170. H. uncinatum var. plumosum, Canadian Musci, No. 374.

About the roots of trees in swamps. (Drummond.) Saskatchewan and Rocky Mountains. (Bourgeau.) On stones in brooks, Molus River, N.B. (Fowler's Cat.) On Kennebecasis Island, N.B. (Hay.) "Wet places, Norman's Cove, Newfoundland. (Rev. A. Waghorne.) On sticks and roots of trees in pools, at Ottawa; on stones in brooks and on rocks and logs in the Moira at Belleville, Ont.; abundant on stones in the rivers and brooks around Owen Sound, and at Red Rock, Lake

Superior, Out.; in mud at Swan Lake House, Man.; on sticks in pools, Cypress Hills, Alberta; boggy pools, Cave and Basin, Banff, Rocky Mountains; in pools in woods, Lesser Slave Lake, N. W.T.; at Quesnel and Blackwater River, B.C.; on sticks in ponds at Comox, Cedar Hill and Victoria, Vancouver Island. (Macoun.) In pools in woods near London, Out. (J. Dearness.) Greenland. (Fl. Gr.)

Var. fluitans, Lesq. & James; Canadian Musci, No. 326.

Floating in water north shore of Lake Superior; in pools, Thunder Creek, west of Moose Jaw, Assiniboia; in pools at Revelstoke, B.C.; also floating in water at Spence's Bridge, B.C. (Macoun.) In pools at London, Ont. • (J. Dearness.)

(834.) A. vacillans, Sulliv.

Hypnum vacillans, Lesq. & James, Mosses of N. America, 377.

Floating in water, marshes of Bay of Quinte, Ont. (Macoun.) So named by C. F. Austin.

(835.) A. distantifolium, Kindb. (n. sp.)

Stems irregularly branching, creeping. Leaves green, distant, spreading when dry, patent when moist, long ovate-lanceolate, long-cuspidate, not or indistinctly decurrent, sharply serrulate all around, chlorophyllose; cells wide, suboblong; costa thick percurrent or nearly excurrent. Barren.

Differs from A. serpens in the leaves being longer cuspidate and the thick, very much longer costa.

On rocks, Chance Cove and New Harbor, Newfoundland, August 16th, 1890. (Rev. A. Waghorne.)

Obs. A. Wollei, (Aust.) Kindb. is. No. 644 Leskea Wollei, Aust.

815. A. minutissimum, Sulliv. & Lesq.

On earth in a ravine at Goldstream, near Victoria, Vancouver Island, June 2nd, 1893. (Macoun.)

816. A. Sprucei, Bruch & Schimp.

On old logs, Jumping Pound Creek, and on earth, Crow's Nest Pass, Rocky Mountains, Alta., 1897. (Macoun.) In good fruit at Dawson, Yukon, August 7th, 1899. (Williams.)

817. A speirophyllum, Kindb.

Mr. L. C. Cheney says of this species that it is sterile and probably a form of A. irriguum or A. variwn. (Bot. Gaz. Vol. XXIV 141).

819. A. subtile, Bruch & Schimp.

On bark of trees, Cāche Lake, Algonquin Park, Ont., June, 1900. (Macoun.)

822. A, serpens, Br. Eur. var. subenerve, Ren. & Card.;

Bot. Gaz., Vol. XXX., p. 22.

Bay of Islands, Newfoundland. (Waghorne.)

1172. A. pseudo-Confervoides, Kindb., Revue Bryol., 1895.

Leaves smaller, shorter and less distinctly denticulate than in A. confervoides; cells wider oval-oblong. Stem-leaves ovate-oblong obtusate acute or short-acuminate. Branch-leaves suberect when moist. Capsule arcuate; lid conic-obtuse; pedicel very short. Perichetial leaves nearly entire. Stems and branches subjulaceous.

On flat limestone rocks near the Experimental Farm, west of Ottawa, Ont., April 16th, 1893; also in same habitat at Carleton Place, Ont., and west of Hull, Que., 1899. (Macoun.)

823. A. porphyrhizon, (Lindb.) Schimp.

On rocks, Credit Forks, Ont., Sept., 1893. (Jas. White.) On old logs at Baddeck, Cape Breton Island, N.S., July 1898; on earth along Scull Creek, Crane Lake Assa., June, 1894; on earth along Jumping Pound Creek, Rocky Mountains, 1897. (Macoun.)

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

On rotten logs, Edmonton, Ont., Oct., 1892. (Jas. White.) In woods, Cāche Lake, Algonquin Park, Ont., 1900; quite common on stones and earth at Niagara and Queenston, Ont., 1901; on earth in the Cypress Hills, Assa., June, 1894; on rocks, Crow's Nest Pass, Rocky Mountains, Alta., Aug., 1897. (Macoun)

825. A. orthocladon, (Beauv.) Lesq. & James Reduced to A. varium by Mr. L. S. Cheney. Bot. Gaz., Vol. XXIV., 265.

On earth below Queenston Heights, Ont., May 8th, 1901. (Macoun.)

827. A. fluviatile, Bruch & Schimp.

On stones in brooks, Cape Breton Island, N.S., July, 1898; Meech's Lake, Que., and in Rockcliffe Park, Ottawa, Ont., 1900. (Macoun.)

828. A. curvipes, Grumb.

A. Kochii, Bruch & Schimp.; L. C. Cheney. Bot. Gaz., Vol. XXIV., p. 265.

On old logs, Foster's Flats, Niagara Falls, Ont., May 13th, 1901; on earth at the base of trees in woods at Tilsonburgh, Ont., June 26th, 1901. (Macoun.)

829. A. adnatum, (Hedw.) Lesq. & James.

On stones in woods, Credit Forks, Ont., 1892. (Jas. White.) On sandstone rocks, Cypress Hills, Assa., June, 1894. (Macoun.)

1173. A. Lescurii, Sulliv.; Lesq. & James Mosses of N. America, 376. Platyloma Lescurii (Sulliv.); Kindb., Bryol. N. Am. & Eur., 79.

On wet rocks, Joe Creek, and Petewawa River, Algonquin Park, Ont., July 1900. (Macoun.)

831. A. compactum, (C. Muell.) Bruch & Schimp. Very common at Dawson, Yukon. (Williams.)