Atmospheric deposition in the bulk precipitation were investigated for total nitrogen (NO₃^-, NH₄⁺, and dissolved organic nitrogen) in the Central Japan with an altitude range of 335-1850 m. Total nitrogen showed a strong altitude dependency and was particularly high in the suburban area due to acidic deposition. An excessive nitrogen deposition causes the nitrogen saturation. It was suggested that the balance of the material cycle in forest ecosystems have collapsed due to the nitrogen saturation.

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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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As a continuation of my first and second papers on Lejeuneaceae species in Kanagawa, Japan, this paper provides additional drawings of 8 species: Cololejeunea minutissima, Cololejeunea nakajimae , Lejeunea anisophylla, Lejeunea compacta, Lejeunea ulicina, Leptolejeunea elliptica, Spruceanthus semirepandus, and Trocholejeunea sandvicensis.

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