Taxonomy and multi-gene phylogeny of (Agaricales, Agaricaceae) with description of six new species from China.

is a relatively small genus containing only 62 previously identified species. Here, we describe six new taxa of based on morphological and phylogenetic analyses: , and and a new record taxon to China. The first Maximum likelihood and Bayesian analyses of a three-gene dataset (ITS, LSU, and ) separated the genus into 18 weakly to strongly supported major clades and subclades, but only a few subclades were synapomorphies. According to phylogenetic analyses, does not belong in . A key to 20 species of in China is provided.