(754.) S. caespitosum, Bruch & Schimp. Bryol. Europ.

Hypnum caespitosum, Wils.; Lesq. & James, Mosses of N. America, 346; Canadian Musci, No. 290.

Alaska, (Kellogg.) On rocks, Mount Tolmie and Mount Finlayson, near Victoria, Vancouver Island. (Macoun.)

(755.) S. obtusifolium, (Hook.) Kindb.

Hypnum (Limnobium) obtusifolium, Hook; Lesq. & James, Mosses of N. America. 400; Canadian Musci, No. 359; Drumm. Musc. Bor. - Am., No. 193.

In a rivulet in the Rocky Mountains. (Drummond.) On rocks in brooks at Revelstoke; wet rocks in a brook at Deer Park, Columbia River; on stones in mountain brooks at Griffin Lake, Spence's Bridge,. Yale and Agassiz, B.C.; common at Goldstream, on Mount Benson and on the falls of Somas River near Alberni, Vancouver Island. (Macoun.)

(756.) S. Krausei, C. Mueller. Alaska. (Krause.)

(757.) S. illecebrum, (Schwaegr.) Bryol. Europ.

Hypnum illecebrum, Schwaegr; Lesq. & James, Mosses of N. America, 347. Alaska. (Kellogg.)

754. S, caespitosum, (Wils.) Br. & Sch.

On rocks, Drew's Harbour, Vancouver Island, 1885. (Dr. G.M. Dawson.) On rocks, Lake Athabasca, Sept., 1875. (Macoun.)

757. S. illecebrum, (Linn.) Br. & Sch.

On rocks in Pier's woods, near Victoria, Vancouver Island, May 8th, 1893; on wet rocks, Agassiz, B.C., May 8th, 1889; the latter specimen was referred in Part VI., p. 202 to S. obtusifolium by Kindberg. (Macoun.)

1153. S. colpophyllum, (Sulliv.) Grout.

Cedar Hill, near Victoria and on the bases of trees near Esqui-malt, Vancouver Island, 1893; also a doubtful specimen (named by Kindberg) at Otter Lake Creek, Algonquin Park, Ont., July 19th, 1900. (Macoun.)

Var. attenuatum, Grout.

Stoloniferous, much more slender, with more distant, loosely spreading leaves; leaves much narrower with a longer and more slender acumination; branch leaves varying from 1.7 x 0.54 mm. on the longer branches to 1 x 0.2 on the smaller.

Type from perpendicular rocks at Goldstream, near Victoria, Vancouver Island, June 2nd, 1893. (Macoun.) I have followed Dr. A. J. Grout in the arrangement of the specimens of this genus. See his revision of the North America species of Scleropodiwn in the Contributions of the Department of Botany of Columbia University, No. 165.