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Species of Cantharellus subgenus Cantharellus are interesting and important for their mycorrhizal properties, medicinal values, and edibility. In China, there are many undescribed species of the subgenus. In this study, four new species of subg. Cantharellus, viz. Cantharellus albopileatus, Cantharellus chuiweifanii, Cantharellus pinetorus, and Cantharellus ravus from Hainan and Hunan Provinces, respectively, were described based on morphological and phylogenetic evidence as a contribution to the knowledge of the species diversity in China. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of microstructures of these four new species are presented as well as comparisons with related species.

Tylopilus callainus (Boletaceae, Boletales) is described as a new species from the south of China. It is morphologically characterized by a brown pileus tinged with sea-green, a sea-green color change of hymenophore and context when injured, a stipe with sea-green color on the upper part, and a trichodermal pileipellis with slightly inflated hyphae. Phylogenetic analyses of DNA sequences from partial 28S regions, the nuc rDNA internal transcribed spacer (ITS) and the translation elongation factor 1-α gene (TEF1) also confirm that T. callainus forms an independent lineage within Tylopilus s. str. Consequently, a detailed description, color photos of fresh basidiomata and line-drawings of microstructures are presented.

The morphology, ecology, and phylogenetic relationships of species of Crocinoboletus (Boletaceae, Boletales) were investigated. One species, C. pinetorum, new to science, is characterized by a pileus yellowish orange to pale orange in color, surface of pileus and stipe usually unchanging in color when bruised, shorter basidiospores measuring 9.5–11.5 × 4–5 (–5.5) μm, and its association with pine trees. Information on C. laetissimus and C. rufoaureus is updated. A key to all known taxa of Crocinoboletus is also provided.

The morphology and phylogenetic relationships of species of Hourangia (Boletaceae, Boletales) from China were investigated. Five phylogenetic species are recognized in the country; two of them, H. densisquamata and H. dilatata, are described as new; two of them, H. cheoi and H. nigropunctata, are previously described taxa, and the remaining one is not described due to the paucity of material. Besides specimens of Hourangia, collections of Aureoboletus were also made during field trips in China. The morphological and molecular data indicated that some collections labeled as A. cf. venustus or identified as A. venustus in previous studies represented a new species, therefore the new species A. erythraeus is described, and A. venustus is redescribed. A key to all known taxa of Hourangia is also provided.