Tylopilus yangzhuliangii (Boletaceae, Boletales), a new bolete from tropical China

Tylopilus yangzhuliangii (Boletaceae, Boletales) is described as a new species, based on morphological and phylogenetic evidence, from Hainan Province, a tropical region of southern China. A detailed description, color photos of fresh basidiomes, and line-drawings of microstructures of the new species are presented as well as comparisons with related species.