Four new species of Mycena sect. Calodontes (Agaricales, Mycenaceae) from northeast China

文献类型： 外文期刊

第一作者： Liu, Zewei

作者： Liu, Zewei;Ge, Yupeng;Cheng, Xianhao;Na, Qin;Zeng, Hui;Zeng, Hui

作者机构：

关键词： Coniferous Forest; New Taxa; Phylogeny; Saprobic Taxonomy

期刊名称：MYCOKEYS （ 影响因子：3.111； 五年影响因子：3.228 ）

ISSN： 1314-4057

年卷期： 2022 年 93 期

页码：

收录情况： SCI

摘要： Species ofMycena sect. Calodontes are representative of the Mycena genus as a whole and are easily recog-nised by the pinkish, reddish, purplish to brownish pileus and larger basidiomata. Furthermore, the colour of the pileus in the species of sect. Calodontes often has a transition or changes in different stages and the combination of the colour of the pileus with cystidia and basidiospores can be used to recognise taxa within this section. To date, 19 species ofMycena sect. Calodontes have been reported worldwide. Includ-ing our recent description of M. yuezhuoi, five species of sect. Calodontes have been recorded in China. During examination of specimens collected in coniferous forests or mixed broadleaf-conifer forests in temperate regions of China, additional taxa assigned to sect. Calodontes were identified. Four new species are recognised, based mostly on characters of the pileus and cystidia. Phylogenetic analysis of sequence data from multiple DNA regions (ITS + rpb1 + tef1) supported the morphological evidence. Here, we propose M. polycystidiata, M. rufobrunnea, M. shengshanensis and M. subulata as new species in Mycena sect. Calodontes. Morphological descriptions, line drawings, habitat photos and comparisons with closely-related taxa are provided. A key to the 23 known species of sect. Calodontes is presented.

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