Field and phylogenetic study reveals four new Cystolepiota species in northeastern China, indicating previously unrecognized fungal diversity within the Agaricaceae family.
Cystolepiota is a tiny lepiotaceous fungi. During our 3 years fieldwork, we found four new species of Cystolepiota from northeastern China. A phylogenetic study of a combined dataset of ITS+nrLSU+rpb2+tef1-α revealed that Cystolepiota changbaishanensis and Cystolepiota hetieri are sister clades; Cystolepiota hongshiensis belongs to Cystolepiota seminuda complex; Cystolepiota luteosquamulosa formed a clade not closely related with any other; Cystolepiota nivalis and Cystolepiota sp. (HMJAU68235) formed a sister clade. All new species are provided with descriptions, photos of the basidiomata, and colored illustrations of the microstructures. A key for the identification of Cystolepiota species from China is also presented.
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