Five new species of (Cortinariaceae) from Yunnan, China, based on molecular and morphological evidence.

is a globally distributed, exceptionally species-rich genus of Cortinariaceae, serving as important ectomycorrhizal fungi. Yunnan province, located in southwestern China, boasts a vast array of environmental conditions and fungal resources, with numerous new species yet to be discovered. Based on morphological evidence and phylogenetic inference using a two-locus dataset, five novel species have been identified within the genus, namely , , , , and . Notably, two of these species ( and ) occur in subtropical areas, while the other three species (, , and ) inhabit subalpine temperate areas. Taxonomic descriptions for these five species are provided.