New insights into the genus (Gyroporaceae, Boletales), with establishment of four new sections and description of five new species from China.

Species of from southern China were studied in this study. Based on morphology and molecular phylogenetic analyses of DNA sequences from the nuclear ribosomal internal transcribed spacer (ITS), the nuclear ribosomal large subunit (nrLSU), and the mitochondrial adenosine triphosphate ATP synthase subunit 6 ( was divided into four main branches in the phylogenetic tree, and four sections were firstly proposed i.e. sect. . sect. . sect. and . sect. . Five new species, i.e. and , were revealed from China, and their phylogenetic positions were also analysed. Among them, and were nested into the sect. , although morphologically similar to and , with obvious cyanescent oxidation reactions, were nested into the sect. ; and characterised by its long cystidia and was nested into the sect. . The new species were formally described and illustrated in the present study, and a key to the sections and species of in China was provided.