Rubroboletus flammeus (Boletaceae, Boletales), a novel species unveiled from subtropical China based on morphological and phylogenetic evidences.

Rubroboletus flammeus is described as a new species from subtropical China based on morphological and molecular phylogenetic analyses. It is morphologically characterized by a red to fiery-red basidioma with a dry pileus, a context in pileus white but that in stipe bright yellow, a stipe densely covered with spots, a blue color change of tissues, and a trichoderm-type pileipellis. Detailed descriptions, color photographs of fresh basidiomata, and line drawings of microscopic features of the new species are presented. A key to the known Chinese taxa of Rubroboletus is provided.

Diversity of Cantharellus (Cantharellales, Basidiomycota) in China with Description of Some New Species and New Records.

Cantharellus is a well-known genus of edible mushrooms, belonging to the family Hydnaceae in the class Agaricomycetes. In this study, a phylogenetic overview of Cantharellus subg. Cinnabarinus and C. subg. Parvocantharellus in China is carried out with the description of four new species. Species description are based on morphological characters of basidiomata and phylogenetic analyses of multi-locus dataset of 28S + tef1 + rpb2. Among the new species, two species, C. chrysanthus and C. sinocinnabarinus, belong to C. subg. Cinnabarinus and two new species, C. convexus and C. neopersicinus, belong to C. subg. Parvocantharellus. Species delimitation characters of the new taxa are compared with closely related species. In addition, three new records of Cantharellus are reported for China: C. albovenosus and C. citrinus of subg. Cinnabarinus and C. koreanus of subg. Parvocantharellus. A key to the species of subg. Cinnabarinus in China was provided.

Three new Melanoleuca species (Agaricales, Basidiomycota) from north-eastern China, supported by morphological and molecular data.

Three new Melanoleuca species, M. chifengense, M. griseoflava and M. pallidorosea, were discovered in the northeast of China. Melanoleuca chifengense is morphologically characterised by its grey to yellowish-grey pileus, decurrent lamellae, grey to yellowish-brown stipe, yellowish-grey context, ellipsoid basidiospores with irregular warts and lack of hymenial cystidia. Melanoleuca griseoflava is mainly characterised by its greyish-brown pileus, adnexed to adnate lamellae, greyish-yellow context, fusiform cystidia and almost reticulate basidiospores. Melanoleuca pallidorosea is characterised by its pinkish-white pileus, white and decurrent lamellae, ellipsoid basidiospores with round and scattered warts and lack of hymenial cystidia. The phylogenetic relationship of the three species was determined by the analyses of the ITS region and the combined data matrix (ITS-nrLSU-RPB2), respectively. The results showed that the three species formed three independent lineages. Based on the combination of both morphological and molecular data, M. chifengense, M. griseoflava and M. pallidorosea were confirmed to be new species. The morphological similarities of the three new species is also discussed.

Hygrophorus subsection Hygrophorus (Hygrophoraceae, Agaricales) in China.

Hygrophorus subsect. Hygrophorus has been relatively well-studied in Europe and North America, but studies on the taxa in Asia, particularly in China, are still limited. In this study, phylogenetic overviews of genus Hygrophorus, based on the nuclear large subunit (LSU) ribosomal RNA gene and of subsect. Hygrophorus, based on the nuclear ribosomal internal transcribed spacer (ITS) regions were generated. Four new species, i.e. H. brunneodiscus, H. fuscopapillatus, H. glutiniceps and H. griseodiscus are described from southern China; and a rarely reported edible species H. hedrychii is described in detail, based upon the materials from north-eastern China. The main characteristics of the species under subsect. Hygrophorus worldwide are summarised in a table.