Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China
文献类型： 外文期刊
作者： Ding, Ling 1 ; Zhong, Ben-Jian 1 ; Zeng, Hui 2 ; Wang, Sheng-Nan 1 ; Yan, Jun-Qing 1 ;
作者机构： 1.Jiangxi Agr Univ, Jiangxi Prov Key Lab Excavat & Utilizat Agr Microo, Nanchang 330045, Peoples R China
2.Fujian Acad Agr Sci, Inst Edible Mushroom, Fuzhou 350011, Peoples R China
3.Jiangxi Agr Univ, Coll Forestry, Jiangxi Prov Key Lab Subtrop Forest Resource Culti, Nanchang 330045, Peoples R China
关键词： Basidiomycetes; new taxa; phylogeny; taxonomy
期刊名称：MYCOKEYS （ 影响因子：3.6； 五年影响因子：3.3 ）
ISSN： 1314-4057
年卷期： 2025 年 118 期
页码：
收录情况： SCI
摘要： Four new species of Collybiopsis, namely C. subpolygramma, C. fucata, C. dentata, and C. latispora, were discovered in the subtropical regions of China. These species were identified based on morphological characteristics and molecular analysis. Morphologically, C. subpolygramma is characterized by its pileal surface, white in color with a light brown center; slender, cylindrical cheilocystidia; and absence of pleurocystidia. C. fucata is recognized by the reddish-brown, hygrophanous pileus; adnate to adnexed lamellae; and relatively broad basidiospores. C. dentata is identified by free lamellae, fusiform to utriform pleurocystidia, and relatively broad basidiospores. C. latispora is distinct by relatively broad basidiospores and a minute, snow-white ring or ruff at the stipe base. In the phylogenetic analysis based on combined ITS and LSU sequences, the four new species formed distinct and stable branches (BI-PP = 1; ML-BP = 100%), respectively. Collybiopsis subpolygramma formed a sister lineage with C. polygramma. The new species C. fucata, C. dentata, and C. latispora were found to be nested within the C. ramealis species complex clade. Detailed descriptions, color photos, and a key to related species are presented.
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