Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China

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...

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Main Authors: Ling Ding, Ben-Jian Zhong, Hui Zeng, Sheng-Nan Wang, Jun-Qing Yan
Format: Article
Language:English
Published: Pensoft Publishers 2025-06-01
Series:MycoKeys
Online Access:https://mycokeys.pensoft.net/article/155560/download/pdf/
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author Ling Ding
Ben-Jian Zhong
Hui Zeng
Sheng-Nan Wang
Jun-Qing Yan
author_facet Ling Ding
Ben-Jian Zhong
Hui Zeng
Sheng-Nan Wang
Jun-Qing Yan
author_sort Ling Ding
collection DOAJ
description 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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institution Kabale University
issn 1314-4049
language English
publishDate 2025-06-01
publisher Pensoft Publishers
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spelling doaj-art-7eab9f80a02d4fce83c7c082c04e9a7a2025-08-20T03:47:02ZengPensoft PublishersMycoKeys1314-40492025-06-0111828931110.3897/mycokeys.118.155560155560Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of ChinaLing Ding0Ben-Jian Zhong1Hui Zeng2Sheng-Nan Wang3Jun-Qing Yan4Jiangxi Agricultural UniversityJiangxi Agricultural UniversityFujian Academy of Agricutural SciencesJiangxi Agricultural UniversityJiangxi Agricultural UniversityFour 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.https://mycokeys.pensoft.net/article/155560/download/pdf/
spellingShingle Ling Ding
Ben-Jian Zhong
Hui Zeng
Sheng-Nan Wang
Jun-Qing Yan
Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China
MycoKeys
title Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China
title_full Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China
title_fullStr Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China
title_full_unstemmed Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China
title_short Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China
title_sort four new species of collybiopsis omphalotaceae agaricales from subtropical regions of china
url https://mycokeys.pensoft.net/article/155560/download/pdf/
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AT huizeng fournewspeciesofcollybiopsisomphalotaceaeagaricalesfromsubtropicalregionsofchina
AT shengnanwang fournewspeciesofcollybiopsisomphalotaceaeagaricalesfromsubtropicalregionsofchina
AT junqingyan fournewspeciesofcollybiopsisomphalotaceaeagaricalesfromsubtropicalregionsofchina