Abstract
Investigation on the moss flora was made of Mt. Toyoguchi and the periphery, one of the calcareous areas in the Akaishi mountain range, Nagano, Japan. Among approximately 1100 specimens collected from 1996 to 1999, 239 species, 5 subspecies, and 11 varieties are recognized in 129 genera of 42 families. Phytogeographical interests reside in Seligeria brevifolia, S. calcarea, Alonia obliquifolia, Encalypta vulgaris, and Neodolichomitra yunnanensis.
