78/9

North American Musci Pleurocarpi.

ISSUED BY A. J. GROUT, PH.D.

364. Hypnum revolutum (Mitt.) Lindb.
On ground and rocks on side of Mt. Cutler,
Colorado, July 25, 1910.

The flattened, regularly pinnate form present in all the specimens of this number are var. Molendoanum (Schimp.) Limpr. according to Cardot. The fine dark form with stem leaves scarcely revolute or plicate seems to be near var. pygmaeum Molendo. Dr. Jewett states that this last form grew on bare granite rocks, Alt. 7500 ft. Both the larger and the smaller form come from the same mat.)

Coll. H. S. Jewett.

Det. A. J. G.

Yale University Herbarium

YU.234652