Var. lato-decurrens, C. M. & Kindb. (n. var.) Bryum lato-decurrens, Canadian Musci, No. 487.

Differs in the leaves, also in the upper, being looser disposed, longer-decurrent, the uppermost distincter apiculate with a sometimes excur-rent costa, the lower short and broad, the stem more radiculose.

On wet earth in Roger's Pass, Selkirk Mountains; in marshes and ditches at Revelstoke, on both sides of the Columbia River, May 5th, 1890. (Macoun.)

(511.) B. pseudotriquetrum, Schwaegr.; Lesq. & James, Mosses of N. America, 238; Canadian Musci, 183.

Hopewell Bay,and Bay Bull Arm, Newfoundland. (Rev. A. Waghorne.) MiquelonIsland. (Delàmare.) Wet rocks, Bass River, N.B. (Fowler's Cat.) On earth at Canaan Forks, Queen's Co., and Tay, York Co., N.B. (J. Moser.) Wet ground, Jupiter and Gunn rivers, Anticosti; damp woods at Campbellton, N.B.; damp woods near Ottawa; Sydenham Falls, near Owen Sound, Ont.; in bogs, at Morley, very abundant at Banff and at Hector, Rocky Mountains; mountains north of Griffin Lake, Gold Range; also at Quesnel and Yale on the Fraser River, B.C.; at Comox and Victoria, Vancouver Island. (Macoun.) Crevices of wet rocks, Black River, Lake Winnipeg. (J. M. Macoun.) Common and variable in Greenland. (Fl. Gr.) On wet earth at Cape Vincent, near Kingston, Ont. (Prof. Fowler.)

Var. hyalodontium, C. M. & Kindb. (n. var.)

Differs principally in the pale-brown capsule and the pale, hyaline, peristome.

On wet rocks at Hector, Rocky Mountains, B.C., August 13th, 1890. (Macoun.)

(512.) B. denticulatum, Kindb., Bull.Torr.Bot. Club, XVII., 273.

Differs from B. pseudotriquetrum in the leaves being distantly denticulate to the middle, lanceolate-acuminate, reflexed at the base. Barren.

Around springs, on the Cypress Hills, Alberta (1880); in a bog in Roger's Pass, Selkirk Mountains, B.C., August 21st, 1885. (Macoun.)

(513.) B. hydrophilum, Kindb., Bull. Torr. Bot. Club, XVI., 95.

Closely allied to B. pseudotriquetrum, but the leaves are narrower, ovate-lanceolate, reflexed at the base or not at all; costa yellow; tufts loose, radiculose only below. Flowers and capsules not found.

Wet springy places near the sea at Nanaimo, Vancouver Island, June 4th, 1887. (Macoun.)

(514.) B. turbinatum, Schwaegr; Lesq. & James, Mosses of N. America, 238.

On rocks, St. Anne des Monts River, Gaspé Co., Que.; on calcareous rocks at Belleville, Ont.; also along the Athabasca River at Fort Assiniboine, N.W.T.; Blackwater River and Hastings, B.C.; on earth at Comox, Vancouver Island. (Macoun.) Galton Mountains, B.C. (Lyall.) Greenland. (Fl. Gr.)

(515.) B. meseoides, Kindb., Bull. Torr. Bot. Club, XVI., 95;

Canadian Musci, No. 187.

Dioecious. Densely caespitose. Stem 1-2 cm. high, reddish. Leaves yellowish, brown-margined, not decurrent, ovate-oblong or short-lanceolate, short-acuminate, faintly denticulate at the apex, slightly reflexed on the borders at the base, cells rhomboidal-oblong; costa red, scarcely excurrent, abbreviated in the lower leaves; male flowers discoid; perigonial leaves ovate-lanceolate, narrower areolate, denticulate from the middle; perichetial leaves narrow, more acuminate. Capsule narrowly pyriform, defluent to a longer collum, immature, arcuate, pale, wide-mouthed, constricted below the mouth; lid convex, pale-yellow, mammillate; teeth pale-yellow, connivent; annulus double; cilia perfect, long and appendiculate; basilar membrane very low or indistinct; pedicel 2-3 cm. long; spores very small, 0.01 mm.

Differs from B. turbinatum in the leaves being narrower, brown-margined and not decurrent; cells smaller; perigonial leaves denticulate; capsule arcuate and long-necked; spores smaller.

Wet rocks, Gaspé coast, Que.; along Cave Avenue at Banff, Rocky Mountains; along the railway in Roger's Pass, Selkirk Mountains; abundant in wet places at Victoria and Nanaimo, Vancouver Island. (Macoun.)

(516.) B. microcephalum, C. M. & Kindb. (n. sp. ad interim.)

This is a doubtful species, not having been found with capsules. It somewhat resembles Bryum caespiticium, the stem is proliferous with small male buds, the leaves are contorted, the costa is percurrent or short-excurrent, the inflorescence dioecious.

On rocks at Deer Park, Lower Arrow Lake, Columbia River, B.C., June 11th, 1890. (Macoun.)

(517.) B. torquescens, Bruch & Schimp.; Lesq. & James, Mosses of 1ST. America, 230.

Wet places at Truro, N.S.; also on Mount Albert, Gaspé Co., Que. (Macoun.) Determination very doubtful; may be a new variety. (Kindberg.)

(518.) B. Schleicheri, Schwaegr; Lesq. & James, Mosses of N. America, 239; Canadian Musci, No. 516; Drumm. Musc. Bor. - Am, No. 264.

In a marshy spot, near the "Height of Land," Rocky Mountains. (Drummond.) In a wet springy place at the base of Avalanche Mountain, Roger's Pass, Selkirk Mountains, B.C.; on Mount Aylmer, near Devil's Lake, Rocky Mountains, alt. 8,000 feet. (Macoun.) Greenland. (Fl. Gr.)

(519.) B. roseum, Schreb.; Lesq. & James, Mosses of N. America, 239; Drumm. Musc. Bor. - Am., No. 255.

Shady woods, Kent Co., KB. (Fowlers Cat.) About the roots of trees in Upper Canada (Ontario). (Drummond.) Very likely the next species.

(520.) B. Ontariense, Kindb., Bull. Torr. Bot. Club, XVI, 96; Canadian Musci, No. 184.

Intermediate between B. roseum and B. Beyrichii (Hsch.) C. Mueller. Comal leaves very numerous, Ungulate, abruptly and short acuminate, revolute to 2/3 or 3/4, yellow-margined above with great confluent teeth; costa stout, excurrent. Capsule pale, with a distinct, curved collum half as long, teeth papillose and hyaline above; archegonia numerous; lid convex short-apiculate, not oblique.

Hitherto confounded with Bryum, roseum and quite common throughout Ontario; generally in a barren state. On old logs and sometimes on limestone rocks in maple woods, at Ottawa, Belleville and Owen Sound, Ont. (Macoun.) Pine woods, River Rouge, Argenteuil Co., Que. (D' Urban.) Common at London, Ont. (J. Dearness.) Tay and Canaan Forks, N.B. (J. Moser.) Also found in Ohio, United States. (Prof. Wetherby fide Kindberg.)