On the identity of Brachythecium sakuraii Broth. with Brachythecium pseudouematsui Nog. (Brachytheciaceae) from Japan

Abstract Brachythecium pseudouematsui Nog. is proposed to be conspecific with B. sakuraii Broth. based on morphological observations and the study of the type material of both taxa; the name B. sakuraii takes priority. A description is included of B.sakuraii, which is rare and endemic to Japan, complemented by photographic illustrations and a discussion of its distinction from other morphologically similar species.