The flora of the genus Poria Pers. ex Gray fron Taiwan has been studied through the wide-range field survey since 1973. The following six species of the resupinate growth habit of poroid fungi are reported first time from this island: Poria reticulate (Pers. ex Fries) Cooke, P. rigrescens Bres., P. carneolutea Rodway & Cleland , P. versipora(Pers.) Rom., P. cinerascens(Bres.) Sacc., and P. nigra (Berk.) Cooke. P. nigra causes a brown rot of wood and others are the white rotters.