THE EPIPHYTIC BRYOPHYTE COMMUNITY ON PINUS DENSIFLORA SIEB. ET ZUCC.

Abstract

The present investigation was carried out in Tsudai-mura, Kochi Prefecture, Southwest Shikoku. The area is the same as reported in the preceding study on the epiphytic bryophyte community of Shiia cuspidata MAKINO (1957,159-162)^<7)>. In this area, the epiphytic bryophyte communities of Pinus densiflora SIEB. et ZUCC. (Nakao and Kukutsuke) were investigated in two places by the writer. (see Table 1.) The total number of sample trees are twenty. On the whole, the recognized general characters of the epiphytic bryophyte community on Pinus densiflora SIEB. et ZUCC. were : 1) On the trunk of sample trees there were found 17 species of Hepaticae and 9 species of Musci. 2) Frequent species in this epiphytic bryophyte community are Microlejeunea punctiformis, Ptychocoleus nipponicus and Frullania truncatifolia. 3)A greater number of epiphytic species were recognized on the north and east sides of a trunk than on the west. 4) The physiognomy of this community is characterized by the growth-form of frequent species such as Microlejeunea punctiformis, Ptychocoleus nipponicus and Frullania truncatifolia. The chief growth-form is the Hardly pressed mat type(Hp).