Basidiodendron yunnanense (Auriculariales), a New Species from Southern China Based on Morphological and Molecular Evidence

A wood-decaying fungal species, Basidiodendron yunnanense Z.Y. Duan & C.L. Zhao sp. nova (Auriculariales) from the Yunnan-Guizhou Plateau, China, is described based on morphological and molecular evidence. Basidiodendron yunnanense has effused, monomitic basidiomata, clamped hyphae, abundant gloeocystidia and broadly ellipsoid or subglobose basidiospores (5–6.5 × 4.5–6 µm). According to a phylogenetic analysis based on ITS region sequences, as well as according to maximum likelihood analysis, maximum parsimony and Bayesian inference B. yunnanense is sister to B. luteogriseum in a monophyletic clade sister to a clade formed of B. alni and B. eyrei.