CEPHALOZIA EXTENSA (Tayl.) Spruce, On Cephalozia, 44. 1882 Jungernzannia extensa Tayl. Lond. Jour. Bot. 5: 279. 1846.
Gametophyte a prostrate pale or rufous, sparingly branched leafy stem ; leaves spreading, complicate-concave, those of the basal portion contiguous, those of the apical portion crowded, bifid more than one-half their length, with triangular-lanceolate acuminate and often apiculate divisions ; leaf-cells about 35 p. in diameter : dioicous ; perianth on a more or less elongated branch, linear-fusiform or sublanceolate, three times the length of the in volucral leaves, which are in three or four ranks, deeply cleft and slightly longer than the ordinary stem-leaves. Sporophyte a long
stalked oval capsule, 0.7 mm. long; spores about 9 p in diameter.
This plant was originally described from material collected by Dr. Scouler at Observatory Inlet, N. W. America and appears from present data to extend from Washington and British Co lumbia to northern California. It was distributed in Can. Hep. 22.