Four New Species of Deconica (Strophariaceae, Agaricales) from Subtropical Regions of China

文献类型： 外文期刊

第一作者： Yan, Jun-Qing

作者： Yan, Jun-Qing;Nie, Cheng-Feng;Ke, Bin-Rong;Zeng, Zhi-Heng;Zeng, Hui;Yan, Jun-Qing;Wang, Sheng-Nan;Hu, Ya-Ping

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关键词： basidiomycetes; four new taxa; taxonomy; phylogeny

期刊名称：JOURNAL OF FUNGI （ 影响因子：4.0； 五年影响因子：4.5 ）

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年卷期： 2024 年 10 卷 11 期

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收录情况： SCI

摘要： Deconica is a relatively small genus, with only 90 names recorded in previous research. In this study, four new species of Deconica have been identified based on morphological and phylogenetic evidence from subtropical regions of China. This represents the first discovery of new species of Deconica in China. Morphologically, D. austrosinensis is characterized by medium-sized spores that are elliptical to elongated-ellipsoid in face view, and fusiform to sublageniform and slightly thick-walled pleurocystidia; D. furfuracea is identified by a well-developed and evanescent veil, medium-sized spores that are rhomboid to mitriform in face view, and fusiform to subclavate pleurocystidia that are rare and subacute at apex; D. fuscobrunnea is recognized by dark brown pileus, medium-sized spores that are rhomboid to mitriform in face view, an ixocutis pileipellis, lageniform cheilocystidia with a long neck and lacks pleurocystidia; D. ovispora is distinguished from other Deconica species by medium-sized spores that are ovoid in face view, an ixocutis pileipellis, lageniform cheilocystidia with a long to short neck, and lacks pleurocystidia. Their distinct taxonomic status is confirmed by the positions of the four new species in ITS + LSU phylogenetic trees. Detailed descriptions and morphological photographs of four new species are presented.

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