New species and newly recorded species of the family Strophariaceae (Agaricomycetes, Agaricales) in China
Two new species, Pholiota songjiangensis and Pyrrhulomyces pileocystidiatus, and one species newly recorded in China, Agrocybe eduardii, are described in this study. All of these species belong to the family Strophariaceae. Pholiota songjiangensis is characterized by a pallid pileus with appressed and concentric squamules, a white stipe covered with light yellowish-brown small scales, ellipsoid to ovoid basidiospores with an obvious germ pore, pleurocystidia as chrysocystidia, and cheilocystidia with two shapes: elongate-cylindrical with a capitulate apex and narrowly lageniform. Pyrrhulomyces pileocystidiatus is characterized by a bright orange-red to ochraceous brown pileus with an obtuse umbo, bitter taste, blackening basidiomata, pleurocystidia as chrysocystidia, and broadly clavate and orange-red pileocystidia. The specimens of Agrocybe eduardii collected from China in the present study closely matched the original morphological description of this species. These three species are described and illustrated, and phylogenetic analysis of a multigene dataset (ITS+nrLSU) is presented. Morphological and phylogenetic analyses confirmed that Pholiota songjiangensis and Pyrrhulomyces pileocystidiatus were distinctly different from other Pholiota and Pyrrhulomyces species, respectively. The Chinese samples formed a monophyletic group with the holotype of Agrocybe eduardii, confirming its newly recorded status from China when combined with the morphological evidence. Keys to species of Pyrrhulomyces, Agrocybe from China, and Pholiota subgenus Pholiota from China are provided.
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