Clitopilus, Clitocella, and Clitopilopsis in China

ABSTRACT

Within the family Entolomataceae, many reports of Entoloma and Rhodocybe have been published, but few reports on Clitopilus and allied genera are available. In this study, Clitopilus, Clitocella, and Clitopilopsis from China were studied by morphological and phylogenetic methods. Portions of nuc 28S rDNA (28S), RNA polymerase II second largest subunit (rpb2), translation elongation factor 1-alpha (tef1), and ATPase subunit 6 (atp6), were employed to elucidate the relationships of Clitopilus and allies. Results indicate that Clitopilus should be divided into three sections, namely, sect. Clitopilus, sect. Scyphoides, and sect. Crispi, the last of which is newly described. In total, 17 species of Clitopilus, Clitocella, and Clitopilopsis are found in China; 14 species belong to Clitopilus, of which 5 are new: C. yunnanensis, C. brunniceps, C. rugosiceps, C. sinoapalus, and C. umbilicatus. Two species of Clitocella, including one new species, Clitocella orientalis, are described. One new species of Clitopilopsis, namely, Clitopilopsis albida, is proposed.

KEYWORDS:

• East Asia
• Enotolomataceae
• morphology
• multigene phylogeny
• taxonomy
• 8 new taxa
• 2 new typifications

ACKNOWLEDGMENTS

The authors are grateful to Xiang-Hua Wang, Bang Feng, Qing Cai, Gang Wu, Jiao Qin, Yan-Chun Li, Qi Zhao, Zai-Wei Ge, Jian-Wei Liu, and Ya-Jun Hou (Kunming Institute of Botany, Chinese Academy of Sciences) for providing valuable specimens and images for this study. The authors thank Zhi-Jia Gu for providing scanning electron microscope (SEM) images. The authors also thank the editor, Brandon Matheny, and reviewers for their constructive suggestions and revisions.

SUPPLEMENTAL DATA

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Additional information

Funding

This study was financially supported by the Biodiversity Investigation, Observation And Assessment Program (2019–2023) of Ministry of Ecology and Environment of China, the Second Tibetan Plateau Scientific Expedition and Research Program (STEP, 2019QZKK0503), and the National Natural Science Foundation of China (no. 31670018).