A new species of Postia (Basidiomycota) based on morphological and molecular characteristics

A new wood-decaying polypore from southern China, Postia cylindrica , is described and illustrated using morphological characteristics and rDNA ITS sequences. The new species is characterized by resupinate to effused reflexed basidiocarps, cream to buff and azonate pileal surface, reddish-brown and incurved margin, gloeoplerous hyphal cells in cuticular layer, absence of cystidia, and cylindrical, thin-walled basidiospores. Molecular analyses confirm the phylogenetic position of the new species Postia . The discriminating characters of the new species and the closely related species are discussed.