A new species of Oxyporus (Basidiomycota, Aphyllophorales) from Northwest China

Abstract

A new poroid Aphyllophorales, Oxyporus subpopulinus, is described from northwest China. It is characterized by perennial basidiocarps, abundant thick-walled and apically encrusted cystidia, ellipsoid and distinctly thin-walled basidiospores, and by growth on Picea crassifolia exclusively. The new species is very similar to Oxyporus populinus, but the latter species has subglobose and slightly thick-walled basidiospores, thin- to thick-walled cystidia, and it grows on angiosperm trees, especially on Acer.