The genus Phylloporus (Boletaceae, Boletales), from Mekong river basin (Yunnan Province, China)

The genus Phylloporus is a gilled bolete and a typical ectomycorrhizal mushroom which forms mycorrhizal associations with woody Fagaceae or Pinaceae. Collections of Phylloporus were made from Xiaozhongdian (Shangri-La), Haitang (Baoshan) and Mengsong (Xishuangbanna) from May to October 2012. Morphology and sequence analysis revealed that the Phylloporus collections belonged to seven groups and five species: P. imbricatus (Xiaozhongdian, Shangri-La), P. pachcystidiatus and P. yunnanensis (Haitang, Baoshan), P. rubiginosus (Mengsong, Xishuangbanna) and P. megacystidiatus sp. nov (Mengsong, Xishuangbanna). In this paper we introduce one new Phylloporus species: Phylloporus m egacystidiatus sp. nov., and new record P. rubiginosus for the first time in Yunnan Province, China. The new species and the new record are described and illustrated with drawings and color photos. Also the species and new record are compared with similar taxa.