New taxa of Boletaceae from China

China possesses a remarkably rich fungal diversity, particularly among boletes, which can be attributed to its heterogeneous plant communities and varied topography and geography. Despite significant taxonomic efforts, the diversity of bolete species remains inadequately characterized in China, and it is expected that many unexplored taxa are yet to be discovered. Through a combination of morphological observations and molecular phylogenetic analyses, this work identified 12 new taxa of Boletaceae in China, including two new genera (Acyanoboletus and Hongoboletus), nine new species (Acyanoboletus controversus, Acyanoboletus dissimilis, Cyanoboletus fagaceophilus, Neoboletus brunneorubrocarpus, Rubroboletus flavus, Rubroboletus serpentiformis, Suillellus flaviporus, Suillellus pinophilus, Suillellus yunnanensis) and one new combination (Hongoboletus ventricosus). Detailed illustrations and comparisons with other related species were provided to aid in identification. This study can significantly contribute to our understanding of bolete species diversity in China and allied regions.