A total of 184 species of bryophytes are reported from the Bessyo and Minami-Osawa areas, western part of Tokyo Metropolitan on the basis of around 670 specimens collected.
Campylopus gemmiparus is newly found from Tokyo. There has recognized three rare species (
Aneura gemmifera, Leptodontium pergemmascens, Orthotrichum erubescens), two endangered species (
Riccia fluitans and
Taxiphyllum alternans) and two northern species (
Calliergonella cuspidate, Leptodictyum humile)in this area.
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