2005 年 8 巻 12 号 p. 389-392
Pleuridium palustre (Bruch & Schimp.) Bruch & Schimp. is added to the moss flora of Japan. The species is closely related to P. japonicum Deguchi, Matsui & Z. Iwats., but has no annulus near the base of beak. It was found on soil, at 10-15 m alt., Bettouga bog near Nemuro, Hokkaido, Japan. Description (in Japanese) and illustrations of the species are given.