On earth and rock at Dawson, Yukon. (Williams.)

733. B. velutinum, Bruch & Schimp.

On earth at the bases of trees, Foster's Flats, Niagara River, Ont., May 16th, 1901. (Macoun.)

734. B, Starkei, Bruch & Schimp.

On earth in woods, Cāche Lake, Algonquin Park, Ont., June, 1900. (Macoun.) Lake Lindeman, Yukon. (Williams.)

735. B. cedipodium, Mitt.

On earth in woods, Cāche Lake, Algonquin Park, Ont., June, 1900. (Macoun.)

737. B. reflexum, (Stark.) Bruch & Schimp.

Eurhynchium reflexum, Stark.; Kindb., Bryol. N. Am. & Eur. 101.

On boulders, Meech's Lake, Chelsea, Que., Sept. 23rd, 1893. On stones in a brook, Big Intervale, Margaree, Cape Breton Island, N.S., July, 1898. (Macoun.) On a knoll in woods at Edmonton, Ont., 1892. (Jas. White.) Lake Lindeman, Yukon. (Williams.)

Var. Demetrii, (Ren. & Card.) Bot. Gaz. Vol. XIX, p.

239.

Differs from the genuine form in the stronger habit, the thicker erect branches, and the broader softer leaves.

Squaw Island, Labrador, 1891. (Waghorne.)

738. B. rutabulum, Bruch & Schimp.

On earth, Foster's Flats, Niagara River, Ont, May, 1901. (Macoun.)

739. B. spurio-rutabulum, C. M. & Kindb.

Dr. A. J. Grout reduces this species and No. 742 to B. asper-rimum, Mitt. Kindberg does not recognize this species in my collections. On old logs in woods near Victoria and at Comox, Vancouver Island, 1893. (Macoun.)

748. B. campestre, Bruch & Schimp.

On earth in woods at Cache Lake, Algonquin, Park, Ont., June 1900. (Macoun.)

749. B. rivulare, Bruch & Schimp.

Port Etches, Alaska, Lat. 60° 30', 1892. (J. M. Macoun.) On stones in spring brooks, Big Intervale, Margaree, Cape Breton, Island, N.S., July, 1898. (Macoun.) St. Paul Island, Behring Sea. (Dr. Merriam.)

751. B. populeum, Bruch & Schimp.

On rocks and stones in damp woods, Margaree, Cape Breton Island, N.S., July, 1898; on boulders in woods, Cache Lake, Algonquin Park, Ont., June, 1900. (Macoun.)

752. B. plumosum, Bruch & Schimp.

On rocks, Aroostook Falls, N.B., 1899; on rocks in brooks and damp woods, Margaree, and Half-Way House, Cape Breton Island, 1898; abundant on rocks, Meech's Lake, Chelsea.Que., Sept., 1893; on stones in woods, Cāche Lake, Algonquin Park, Ont., 1900. (Macoun.) Chilliwack Valley, B.C., 1901. (J. M. Macoun)

1144. B. cavernosum, Kindb., Revue Bryol., 1895.

Differs from B. rutabuliforme: Leaves more concave, recurved on both sides to acumen; alar and lower basal cells small, green and well-defined. Lid of capsule longer pointed or rostellale.

On rocks near high-water mark, Spanish Mills, and on moist rocks, Credit Forks, Ont, 1892-93. (Jas. White.)

1145. B. Hillebrandi, Lesq.; Lesq. & James, Mosses of N. America, 340.

On old logs in woods, Carleton Place, Ont., May 12th, 1900. (Macoun.)

1146. B. biventrosum, Muell.; Lesq. & James, Mosses of N. America, 338.

On old logs in woods, Carleton Place, Ont., May 12th 1900. (Macoun.)

1147. B. calicareum, Kindb., Revue Bryol., 1895.

Leaves crowded, long-acuminate, filiform-pointed, more or less recurved, incurved-falcate when dry, patent when moist; angular cells short, special alar cells few, hyaline and much larger, the others linear. Stem-leaves with a broad base; costa short, generally vanishing near the middle. Branch-leaves narrow; costa nearly reaching the acumen. Capsule small, arcuate; cilia not appendiculate; lid apiculate; pedicel smooth about 1 cm. long. Tufts dense, radiculose, green, faintly glossy. Stem irregularly divided; branches not compressed. Habit of B. intricatum.

Abundant on flat limestone rocks in Rockcliffe Park, Ottawa, Ont., Oct., 1892, May, 1899, and June, 1900. (Macoun)

1148. B. intricatum, Hedw.; Kindb., Bryol. N. Am.& Eur. 118.

On damp rocks, Meech's Lake, Chelsea, Que., Sept. 23rd, 1893. New to America. (Macoun.)

1149. B. subintricatum, Kindb., Revue Bryol., 1895.

Leaves narrowly ovatc-oblong, or ovate-lanceolate nearly uniform (those of the branches not much narrower), nearly crowded (at least those of the stem), decurrent, not falcate when dry; alar cells few, the others linear; costa vanishing above the middle.

Capsule arcuate; pedicel very rough. Stem subpinnate. Differs from B. velutinum and B. intricatum: Leaves faintly denticulate filiform-pointed; alar cells often dilated. Perichetial leaves nearly entire with a long filiform deflexed point. Capsule oblong-cylindric, arcuate. Tufts loose, sparingly radiculose dusky green. Branches faintly compressed.

On trunks, near their bases, Sea's farm, near Victoria, Vancouver Island, 1893. (Macoun.)

1150. B. erythrorrhizon, Bruch & Schimp.

On earth, common at Dawson, Yukon. (Williams.) Canaan Forks, Queen's Co., N.B. (J.Moser.) This specimen was referred to Eurhynchium hians in Part VI. 206.

1151. B. cirrosum, Schwaegr.

Cirripliyllum cirrosum (Schwaegr.) Grout.

In thick mats on rocks by a stream. Collected in rather old fruit, August 27th, 1899, at Skagway, Alaska. (Williams.)

1152. B. petrophyllum, R. S. Williams, Bull, of New York Bot. Gar., Vol. II., p. 136, 1901.

In low dense tufts or sometimes in thin mats with long creeping stems and short subpinnate branches. Stem leaves 1.5 mm. long by .04 mm. wide, narrowly ovate-lanceolate, about one-half costate, serrulate all round, more or less decurrent and margin reflexed near base, not very concave, and scarcely or not plicate. Median leaf-cells linear, flexuous up to .065 mm. long, and .005 mm. wide. Alar cells short and broad, not forming a distinct cluster. Branch leaves very similar to stem leaves but mostly a a little smaller with longer costa ending in spine on back and adjacent cells, sometimes papillose by the projecting upper ends. Inner perichetial leaves pale ecostate, gradually narrowed to a slender, flexuous, serrulate point, with rarely I or 2 coarse teeth at its base. Capsule nodding, curved with lid about 2.5 mm. long and 1 mm. broad. Lid conical its height about equal to basal diameter. Annulus of two rows of cells. Teeth of peristome hyaline bordered, papillose above, outer plates striate, inner lamellae about 30, segments without rounded perforations, more or less split along the keel with mostly 2 appendiculate cilia

19 1/2 between. Seta rough throughout, up to 1 cm. high. Smooth spores up to 011 mm.

On rock at Dawson, Yukon In good fruit, June 24th, 1898. This species is evidently nearest to suberythrorrhizon but differs in the rough pedicel, leaves narrower, less serrate and plicate, and cilia appendiculate. (Williams.)