Pluteus umbrosoides and P. chrysaegis, new records from China

Pluteus umbrosoides and P. chrysaegis are reported as new records from China based on morphological observation and molecular evidence. Pluteus umbrosoides is characterized by a brown to dark brown squamulose pileus lacking an appendiculate pileus margin, a nearly glabrous stipe, ellipsoid basidiospores, predominantly capitate pleurocystidia, and a trichohymeniderm pileipellis. Pluteus chrysaegis is distinguished by its bright yellow pileus, subglobose to globose basidiospores, lageniform to fusoid cheilocystidia with long apical appendages, and abundant fusoid pleurocystidia. Morphologically and phylogenetically both species are members of P. section Hispidoderma. Morphological descriptions, illustrations, and line drawings of Chinese collections of the two species are provided.