Seven New Species of Subgenus (Entolomataceae, Agaricales) from Subtropical Regions of China.

is a relatively large genus in Agaricales, with a rich diversity of species and a wide distribution. In this study, seven new species of belonging to the subgenus have been identified based on morphological and phylogenetic evidence from subtropical regions of China. Morphologically, is characterized by the yellow, depressed, estriate pileus and medium-sized basidiospores; is recognized by the white and papillate pileus, adnexed lamellae, and presence of clamp connections; is identified by the pink-to-maroon and estriate pileus, and lamellae with lateral veins; differs from other cuboid-spored species by the lamellae edge which is red-brown-underlined; is characterized by the white pileus and carneogriseum-type cheilocystidia; is recognized by the pileus margin exceeding the lamellae, 2-layered pileipellis with hyphae of different widths, and the presence of clamp connections; is identified by the tomentose pileus, heterogeneous lamella edge, and versiform cheilocystidia with brown-yellow contents. Their distinct taxonomic status is confirmed by the positions of the seven new species in both the ITS + LSU and 3-locus (LSU, , ) phylogenetic trees. Detailed descriptions, color photos, and a key to related species are presented.