New Contributions to the Species Diversity of the Genus <i>Hydnum</i> (<i>Hydnaceae</i>, <i>Cantharellales</i>) in China: Four New Taxa and Newly Recorded Species

<i>Hydnum</i>, a well-defined genus in the family <i>Hydnaceae</i> (order <i>Cantharellales</i>), is characterized by its distinctive spine-bearing hymenophores. In this study, we performed a multi-locus phylogenetic analysis (ITS-nrLSU-<i>tef1</i>) of...

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Bibliographic Details
Main Authors: Yong-Lan Tuo, Libo Wang, Xue-Fei Li, Hang Chu, Minghao Liu, Jiajun Hu, Zheng-Xiang Qi, Xiao Li, Yu Li, Bo Zhang
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Journal of Fungi
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Online Access:https://www.mdpi.com/2309-608X/11/6/431
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Summary:<i>Hydnum</i>, a well-defined genus in the family <i>Hydnaceae</i> (order <i>Cantharellales</i>), is characterized by its distinctive spine-bearing hymenophores. In this study, we performed a multi-locus phylogenetic analysis (ITS-nrLSU-<i>tef1</i>) of <i>Hydnum</i> species. Integrating morphological examinations and phylogenetic evidence, we identified and delineated five <i>Hydnum</i> species in China, which include four novel species (<i>Hydnum crassipedum</i>, <i>H. albomarginatum</i>, <i>H. fulvostriatum</i>, and <i>H. bifurcatum</i>) and the first record (<i>H. orientalbidum</i>) in Anhui Province. This study provides a comprehensive morphological description (including macroscopic morphology and microscopic structure), hand-drawn illustrations (encompassing basidiocarps, basidiospores, basidia, and pileipellis hyphae), morphological comparative analysis with similar species, and comparative phylogenetic analysis with related taxa. Furthermore, we developed a dichotomous key for identifying <i>Hydnum</i> species distributed in China.
ISSN:2309-608X