AUTHOR=Xu Jize , Jiang Yi , Wang Tiantian , Zhang Di , Li Xiaobin , Hosen Md. Iqbal 

TITLE=Morphological characteristics and phylogenetic analyses revealed four new species of Agaricales from China

JOURNAL=Frontiers in Microbiology

VOLUME=14

YEAR=2023

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2023.1118525

DOI=10.3389/fmicb.2023.1118525

ISSN=1664-302X

ABSTRACT=<p>Four new species of Agaricales from China viz. <italic>Hohenbuehelia tomentosa, Rhodophana qinghaiensis, Rhodophana aershanensis</italic>, and <italic>Spodocybe tomentosum</italic> are described based on their unique morphological features and molecular evidence. <italic>Hohenbuehelia tomentosa</italic> is mainly characterized by its dark brown pileus with finely dense pure white tomentum, dirty white, decurrent lamellae, eccentric stipe, smooth spores, and fusiform metuloid cystidia. The characteristics of <italic>Rhodophana qinghaiensis</italic> are glabrous, smooth, reddish-brown pileus, gray-orange lamellae, and initially light orange becoming reddish brown stipe. The unique morphological characteristics of <italic>Rhodophana aershanensis</italic> are reddish brown pileus with age, brown-orange toward the margin, light orange lamellae and stipe dark brown at first, and reddish-brown with age. <italic>Spodocybe tomentosum</italic> is characterized by subclitocyboid and small basidiomes, finely dense pure white tomentum on the pileus surface, and broadly ellipsoid to ellipsoid and smaller basidiospores. Phylogenetic analysis showed that <italic>Hohenbuehelia tomentosa, Rhodophana qinghaiensis, Rhodophana aershanensis</italic>, and <italic>Spodocybe tomentosum</italic> formed an independent lineage. Full descriptions, illustrations, and phylogenetic trees of the four new species are provided in this study.</p>