FISSIDENS SOLDANIANUS SP. NOV. (BRYOPSIDA, FISSIDENTACEAE) FROM VIETNAM

抄録

  Fissidens soldanianus Tad.Suzuki & Z.Iwats. is described from Vietnam. It is an aquatic species, and in general aspect it is similar to subgenus Octodiceras. However, this species does not belong to subgenus Octodiceras, but perhaps is related to the eastern Asiatic F. geminiflorus and allies which grow in similar habitats. Fissidens soldanianus is easily distinguished from F. geminiflorus by its lack of axillary hyaline nodules, non-decurrent dorsal lamina, and a costa that ends far below the leaf apex.