Updated taxonomy of Chinese Phylloporus (Boletaceae, Boletales): six new taxa and four redescribed species

Species of Phylloporus (Boletaceae, Boletales) in China were investigated using morphology and molecular phylogenetic analyses of DNA sequences from the nuclear 28S rDNA D1–D2 domains, rDNA internal transcribed spacer region, and translation elongation factor 1-α gene. Ten species are recognized from China in the present study. Among them, P. alboinfuscatus, P. grossus, P. microsquamus, P. nigrisquamus, P. nigrobrunneus, and P. tenuissimus are new to science; and P. bogoriensis, P. castanopsidis, P. luxiensis, and P. subrubeolus are previously described. Phylloporus megacystidiatus, originally described from southwestern China, is likely conspecific with P. yunnanensis. A key to the Chinese species of Phylloporus is provided. A preliminary biogeographical analysis showed that the affinities of Phylloporus species between subtropical/tropical China and Thailand were evident, both regions share seven common taxa; P. nigrisquamus and P. microsquamus are closely related to taxa from North/Central America.