Cirriphyllum Grout, 1898.

Cirriphyllum is a plant of perennially wet soil primarily in riparian areas of northern Washington State. It resembles a large Brachythecium except for the very narrow acumen that occupies about 1/3 of the otherwise broadly ovate, lightly plicate or wrinkled leaf. We do not expect this plant to occur in California.
see key to Brachythecium Etc.

Species included:
Cirriphyllum cirrosum (Schwägrichen in Schultes) Grout, not known from CA