Phylloporia osmanthi and P. terrestris spp. nov (Hymenochaetales, Basidiomycota) from Guangxi, South China

摘要

Phylloporia osmanthi and P. terrestris are newly described and illustrated from Guangxi Autonomous Region, South China. Both species have pileate basidiocarps, a duplex context separated by a black line, a monomitic hyphal system, absence of setae, and tiny, yellowish, thick-walled basidiospores, all features that point toward Phylloporia as presently defined. Phylloporia osmanthi resembles Phylloporia pectinata; as both species share the imbricate basidiocarps with sulcate surface and the pore sizes. However, P. pectinata differs by its perennial habit, a dimitic hyphal system and longer basidiospores. Phylloporia terrestris is also characterized by stipitate basidiocarps emerging from the ground. It distinguishes from the other three terrestrial and stipitate species of Phylloporia, namely, P. minutispora, P spathulata, and P. verae-crucis, in having smaller pores. In addition, P. terrestris has smaller basidiospores than P. spathulata and P. verae-crucis.