Global Diversity and Taxonomy of (Hymenochaetales, Basidiomycota): Four New Species and Keys to Species of the Genus.

The genus is a polypore genus with resupinate, white to cream or buff fresh basidioma, poroid or hydnoid hymenophore, a monomitic or dimitic hyphal system with generative hyphae bearing clamp connections, the presence of rosette-like crystals and allantoid to lunate basidiospores. We study the phylogeny and diversity of herein by using both morphological and molecular methods. Phylogenetic analyses are based on the ITS dataset, the combined 2-locus dataset (5.8S + nLSU) and 7-locus dataset (ITS + nLSU + RPB1 + RPB2 + TEF1 + mtSSU + nSSU) of 15 taxa of all over the world. Among them, four species are new to science and described and illustrated in this paper, viz. , , and In addition, three taxa were treated as sensu lato. An identification key of the 14 accepted species of worldwide is provided.