{"title":"Two mycenoid species of <i>Leucoinocybe</i> (Agaricales, Basidiomycota) from southern China.","authors":"Wen-Xiao Xia, Chao-Qun Wang, Xiang-Lian Chen, Rui-Hua Sun, Cun-Xiang Fan, Tai-Hui Li, Wang-Qiu Deng, Hai-Mei Yue, Ming Zhang","doi":"10.3897/mycokeys.129.174720","DOIUrl":"https://doi.org/10.3897/mycokeys.129.174720","url":null,"abstract":"<p><p>Two new species of <i>Leucoinocybe</i> from southern China are described, illustrated, and compared with phenotypically similar and phylogenetically related species. Morphologically, <i>L. danxiashanensis</i> <b>sp. nov</b>. is characterized by its mycenoid basidiomata, light brown to brownish orange pileus with faintly yellow striations, decurrent lamellae, abundant lageniform to obclavate and thin-walled cystidia on pileus and stipe surface, and broadly ellipsoid to subamygdaliform basidiospores; and <i>L. haizhuensis</i> <b>sp. nov</b>. is characterized by its mycenoid basidiomata, brown, light brown to yellowish white pileus with pubescent, 2-spored basidia, ovoid, diverse cheilocystidia and elliptical to broadly elliptical basidiospores. Phylogenetic analyses based on sequences of the nuclear ribosomal large subunit (nrLSU) and the nuclear ribosomal internal transcribed spacer (nrITS) supported them as two distinct species of <i>Leucoinocybe</i>.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"325-343"},"PeriodicalIF":3.6,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13003341/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147500351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycokeysPub Date : 2026-03-10eCollection Date: 2026-01-01DOI: 10.3897/mycokeys.129.184555
Nalin N Wijayawardene, Oshadi Rajakaruna, Li-Su Han, Madhara K Wimalasena, Thushara C Bamunuarachchige, Jayarama D Bhat, Turki M Dawoud, Susantha Udagedara, Wannapawn Watsuntorn, Sinang Hongsanan, Paul M Kirk, Fuqiang Yu, Dong-Qin Dai, Kahandawa G S U Ariyawansa
{"title":"Fungi associated with seagrass <i>Enhalus acoroides</i> in Puttalam Lagoon, Sri Lanka: Discovery of two new species (<i>Neodevriesia zeylanica</i> and <i>Neooccultibambusa zeylanica</i> (<i>Dothideomycetes</i>)) and taxonomic validation of <i>Halophilomyces (Sordariomycetes)</i>.","authors":"Nalin N Wijayawardene, Oshadi Rajakaruna, Li-Su Han, Madhara K Wimalasena, Thushara C Bamunuarachchige, Jayarama D Bhat, Turki M Dawoud, Susantha Udagedara, Wannapawn Watsuntorn, Sinang Hongsanan, Paul M Kirk, Fuqiang Yu, Dong-Qin Dai, Kahandawa G S U Ariyawansa","doi":"10.3897/mycokeys.129.184555","DOIUrl":"https://doi.org/10.3897/mycokeys.129.184555","url":null,"abstract":"<p><p>During our ongoing research on seagrass-associated fungi in Kalpitiya, Puttalam Lagoon, Sri Lanka, ten endophytic fungal strains have been isolated from healthy leaves, roots, and rhizomes of <i>Enhalus acoroides</i>. A surface sterilization method was used for the isolation of fungi. Pure cultures obtained were induced to sporulate. Phylogenetic analyses based on multi-gene regions (ITS, LSU, SSU, <i>rpb</i>2, and <i>tef</i>1<i>-α</i>) were carried out for species identification. <i>Neodevriesia zeylanica</i> Wijayaw. et al. and <i>Neooccultibambusa zeylanica</i> Wijayaw. et al. are introduced as novel species, along with two new country and host records, i.e., <i>Neodevriesia saximollicula</i> D.S.Paiva and <i>Thalassodendromyces purpureus</i> Vohník & Réblová. Two strains have been confirmed as <i>Halophilomyces hongkongensis</i> Xiao Wang et al. (nom. invalid), the type species of <i>Halophilomyces</i> Xiao Wang et al. (nom. invalid). <i>Halophilomyces hongkongensis</i> (based on the newly isolated strains) has been validated and provided with a new name, <i>Halophilomyces zeylanica</i> Wijayaw. et al., along with the designation of a new holotype and ex-type, respectively.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"267-297"},"PeriodicalIF":3.6,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12997045/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147487909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Morpho-molecular approach reveals three novel endophytic fungi in <i>Polyschema</i> (Pleosporales, Latoruaceae) associated with roots of baobab trees in Yunnan, China.","authors":"Fangqi Sun, Hongbo Jiang, Jaturong Kumla, Rungtiwa Phookamsak, Junfu Li, Yunju Li, Jianchu Xu, Jayarama Darbhe Bhat, Nakarin Suwannarach","doi":"10.3897/mycokeys.129.182259","DOIUrl":"10.3897/mycokeys.129.182259","url":null,"abstract":"<p><p>Endophytic fungi associated with roots of the baobab tree (<i>Adansonia digitata</i> L.) remain poorly documented in terms of species diversity worldwide. During an ongoing fungal survey in the dry-hot valleys of Honghe (Yunnan Province, China), five endophytic fungal strains were isolated from healthy roots of <i>A. digitata</i>. Based on multi-locus phylogenetic analyses of four loci (ITS, LSU, SSU, and <i>rpb</i>2), combined with morphological observations, all five strains were identified as belonging to the genus <i>Polyschema</i>. Hence, three novel species are introduced in the present study, namely <i>P. adansoniae-digitatae</i>, <i>P. hongheense</i>, and <i>P. radicicola</i>. This study constitutes the first record of <i>Polyschema</i> from mainland China. Detailed morphological descriptions, illustrations, and phylogenetic placements of the three new species are provided. Additionally, the species diversity, morphology, and phylogeny of <i>Polyschema</i> are updated and discussed. These findings enrich knowledge of endophytic fungal diversity associated with baobab in China and provide insights into the taxonomy and diversity of <i>Polyschema</i>. Furthermore, an updated discussion on the ecology and genera within the family Latoruaceae is presented.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"241-266"},"PeriodicalIF":3.6,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12993479/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147482140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycokeysPub Date : 2026-03-06eCollection Date: 2026-01-01DOI: 10.3897/mycokeys.129.177637
Lowie Tondeleir, Mario Amalfi, Dirk Stubbe, Annemieke Verbeken
{"title":"Tales of the unexpected II: two new angiocarpic representatives of Russulaceae (Russulales, Basidiomycota) from tropical Southeast Asia.","authors":"Lowie Tondeleir, Mario Amalfi, Dirk Stubbe, Annemieke Verbeken","doi":"10.3897/mycokeys.129.177637","DOIUrl":"https://doi.org/10.3897/mycokeys.129.177637","url":null,"abstract":"<p><p>The evolution of angiocarpic fruiting bodies has occurred numerous times across Russulaceae (Russulales, Basidiomycota). A unique example of a tropical region with an unusually large number of such sequestrate taxa is the humid rainforests of Sri Lanka. In this paper, we describe two new sequestrate species of <i>Russula</i> subg. <i>Russula</i> from Sri Lanka, <i>Russula botrytigustata</i> <b>sp. nov</b>. and <i>Russula ciceriformis</i> <b>sp. nov</b>., based on molecular phylogenetic analyses and extensive morphological descriptions. A key to all sequestrate Russulaceae known from South and Southeast Asia, including these newly described taxa, is provided. Lastly, the possible adaptive advantages that may explain the high abundance of sequestrate fungi in these rainforests are discussed.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"213-239"},"PeriodicalIF":3.6,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12988430/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147469785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycokeysPub Date : 2026-03-02eCollection Date: 2026-01-01DOI: 10.3897/mycokeys.129.178173
Gui-Li Zhao, Xing-Juan Xiao, Shan-Shan Song, Samantha C Karunarathna, Xue-Yan Chen, Ying Liu, Yong-Zhong Lu, Ning-Guo Liu
{"title":"Two novel species of <i>Neohelicomyces</i> (Tubeufiaceae, Tubeufiales) from Guizhou Province, China.","authors":"Gui-Li Zhao, Xing-Juan Xiao, Shan-Shan Song, Samantha C Karunarathna, Xue-Yan Chen, Ying Liu, Yong-Zhong Lu, Ning-Guo Liu","doi":"10.3897/mycokeys.129.178173","DOIUrl":"https://doi.org/10.3897/mycokeys.129.178173","url":null,"abstract":"<p><p>During a survey of microfungal diversity in Guizhou Province, southwestern China, four helicosporous taxa were collected and isolated from decaying wood in both freshwater and terrestrial habitats. Phylogenetic analyses based on LSU, ITS, <i>tef</i>1-α, and <i>rpb</i>2 sequences, along with morphological assessments, revealed two new species: <i>Neohelicomyces saprobicus</i> and <i>N. uniramulosus</i>. Morphologically, <i>Neohelicomyces saprobicus</i> differs from its close relative <i>N. sexualis</i> by its asexual mode of reproduction, in contrast to the sexual reproduction observed in <i>N. sexualis</i>. <i>Neohelicomyces uniramulosus</i> is distinguished from its close relative <i>N. helicosporus</i> and <i>N. hyalosporus</i> by its conidiophores. Detailed morphological descriptions, illustrations, and taxonomic notes are provided. In addition, the present study summarizes the main morphological characteristics, host associations, and geographical distributions of <i>Neohelicomyces</i>.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"145-162"},"PeriodicalIF":3.6,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12973048/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147436964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycokeysPub Date : 2026-02-27eCollection Date: 2026-01-01DOI: 10.3897/mycokeys.129.177354
Yilan Jin, Muhammad Haqnawaz, Abdul Rehman Niazi, Pingzhu Lu, Abdul Nasir Khalid, Qirui Li
{"title":"Two new species of the genus <i>Conocybe</i> (Agaricales, Bolbitiaceae) from Punjab, Pakistan.","authors":"Yilan Jin, Muhammad Haqnawaz, Abdul Rehman Niazi, Pingzhu Lu, Abdul Nasir Khalid, Qirui Li","doi":"10.3897/mycokeys.129.177354","DOIUrl":"10.3897/mycokeys.129.177354","url":null,"abstract":"<p><p>In this study, two new species of genus <i>Conocybe</i> are described, based on morpho-anatomical and phylogenetic analyses of ITS and LSU (28S) regions. According to phylogenetic analyses, <i>Conocybe kotadduensis</i> & <i>C. safariensis</i> make a separate clade with a strong bootstrap value from the closest species of the genus <i>Conocybe</i>, sect. <i>Pilosellae</i>. <i>Conocybe kotadduensis</i> is closest to <i>C. nitrophila</i>, while <i>C. safariensis</i> is closer to <i>C. ceracea</i>. <i>Conocybe kotadduensis</i> differs from <i>C. nitrophila</i> due to pale yellow, parabolic pileus with velvety surface, scabrous surface of stipe, amygdaliform to ovoid, yellowish basidiospores, broad, fusiform, cylindrical cells of lecythiform cheilocystidia, sphero-pedunculate to obovoid, globose to sub-globose pileipellis elements. <i>Conocybe safariensis</i> can be distinguished from <i>C. ceracea</i> in having a conical to convex pileus, orange to light gray stipe, fusiform to lacrymoid basidiospores, obovoid to subglobose basidia, ellipsoid to globose cheilocystidia, and absence of pleurocystidia.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"129-143"},"PeriodicalIF":3.6,"publicationDate":"2026-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12966846/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147379310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycokeysPub Date : 2026-02-27eCollection Date: 2026-01-01DOI: 10.3897/mycokeys.129.179192
Xing-Guo Tian, Tian-Ye Du, An-Dong Ma, Rajesh Jeewon, Samantha C Karunarathna, Saowaluck Tibpromma, Dan-Feng Bao
{"title":"Taxonomic and phylogenetic analyses reveal two new <i>Comoclathris</i> taxa (Dothideomycetes, Pleosporaceae) from Inner Mongolia, China.","authors":"Xing-Guo Tian, Tian-Ye Du, An-Dong Ma, Rajesh Jeewon, Samantha C Karunarathna, Saowaluck Tibpromma, Dan-Feng Bao","doi":"10.3897/mycokeys.129.179192","DOIUrl":"10.3897/mycokeys.129.179192","url":null,"abstract":"<p><p>The Inner Mongolia Autonomous Region, located in northern China, represents a temperate semi-arid ecosystem dominated by steppe vegetation and characterized by rich, yet understudied, fungal diversity. During an investigation of microfungi associated with decaying plant materials in the desert regions of Inner Mongolia, two novel species of <i>Comoclathris</i> were collected and isolated. Detailed morphological examinations and multi-locus phylogenetic analyses based on ITS, LSU, SSU, and <i>rpb</i>2 sequence data support the establishment of these taxa as novel species: <i>Comoclathris desertica</i> and <i>C. xiangshawanensis</i>. These two species are described and illustrated herein, with particular attention to their differences from similar species with respect to ascomatal structures and ascospore morphology. The discovery of these new taxa expands the known diversity and distribution of <i>Comoclathris</i> in China and provides new insights into the saprobic fungal communities of semi-arid regions. This study also highlights the ecological and taxonomic significance of continued surveys on saprobic fungi in grassland and desert ecosystems of northern China.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"107-128"},"PeriodicalIF":3.6,"publicationDate":"2026-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12966847/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147379186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycokeysPub Date : 2026-02-23eCollection Date: 2026-01-01DOI: 10.3897/mycokeys.129.182847
Zheng-Hu Guo, Ya-Qin Zhou, Jie Wang, Li-Ying Yu, Shou-Jie Qin, Jia-Xin Liu, Yu Chen, Rong-Shao Huang, Xiao-Ming Tan
{"title":"Three new species of <i>Gnomoniopsis</i> and <i>Ternstroemiomyces</i> (Diaporthales, Sordariomycetes) from China.","authors":"Zheng-Hu Guo, Ya-Qin Zhou, Jie Wang, Li-Ying Yu, Shou-Jie Qin, Jia-Xin Liu, Yu Chen, Rong-Shao Huang, Xiao-Ming Tan","doi":"10.3897/mycokeys.129.182847","DOIUrl":"https://doi.org/10.3897/mycokeys.129.182847","url":null,"abstract":"<p><p><i>Cinnamomum cassia</i> is a renowned medicinal and aromatic plant with significant economic importance and broad pharmacological applications. This study investigates the taxonomy and diversity of endophytic fungi belonging to the order Diaporthales, isolated from this plant in Guangdong Province, China. A total of six isolates were obtained from healthy leaves. These isolates were examined using morphological characteristics and multilocus phylogenetic analyses based on the internal transcribed spacer (ITS), large subunit ribosomal RNA gene (LSU), and translation elongation factor 1-alpha (<i>tef1</i>). Phylogenetic reconstructions inferred from maximum likelihood and Bayesian inference, together with morphological evidence, revealed that the isolates represent three distinct and previously undescribed species, which are herein described as <i>Gnomoniopsis luodingensis</i> <b>sp. nov</b>. (Gnomoniaceae), <i>Ternstroemiomyces cinnamomi</i> <b>sp. nov</b>., and <i>Ternstroemiomyces zhaoqingensis</i> <b>sp. nov</b>. (Ternstroemiomycetaceae). These findings expand the known host range of endophytic fungi and provide essential taxonomic data for the fungal community associated with this economically important medicinal plant.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"81-105"},"PeriodicalIF":3.6,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12954450/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147356785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycokeysPub Date : 2026-02-19eCollection Date: 2026-01-01DOI: 10.3897/mycokeys.129.182290
Jipeng Sun, Entaj Tarafder, Tao Chen, Sinang Hongsanan, Shengxi Chen, Chada Norphanphoun, Samantha C Karunarathna, Xiangyu Zeng
{"title":"Two novel species of sooty mould fungi (Capnodiales, Dothideomycetes) from China.","authors":"Jipeng Sun, Entaj Tarafder, Tao Chen, Sinang Hongsanan, Shengxi Chen, Chada Norphanphoun, Samantha C Karunarathna, Xiangyu Zeng","doi":"10.3897/mycokeys.129.182290","DOIUrl":"https://doi.org/10.3897/mycokeys.129.182290","url":null,"abstract":"<p><p><i>Conidiocarpus</i> and <i>Polychaeton</i> are genera of sooty mould fungi (Capnodiales, Dothideomycetes) that grow epiphytically on the leaf surfaces of living plants and typically depend on honeydew excreted by sap-sucking insects as their primary nutrient source. Heavy colonization by these fungi may impair host photosynthesis, reduce plant vigor, and decrease the aesthetic or economic value of affected plants. In this study, two novel species, <i>Conidiocarpus nanshanense</i> and <i>Polychaeton cengongense</i>, were collected from the leaves of <i>Schefflera macrostachya</i> (large-spiked schefflera) and <i>Dalbergia assamica</i> (South China rosewood) in Guizhou and Guangdong Provinces, respectively. Species delimitation was based on detailed morphological characteristics and phylogenetic analyses of multiple loci, including ITS, LSU, <i>tef</i>1-α, and <i>rpb</i>2. Morphological descriptions and illustrations are provided, together with phylogenetic analyses inferred using maximum likelihood (ML) and Bayesian inference (BI). The results expand the known taxonomic diversity of sooty mould fungi in China and provide important morphological and molecular data that support species delimitation and classification within Capnodiales.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"23-41"},"PeriodicalIF":3.6,"publicationDate":"2026-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12946820/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147327822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MycokeysPub Date : 2026-02-19eCollection Date: 2026-01-01DOI: 10.3897/mycokeys.129.179449
Dege Zheng, Saowaluck Tibpromma, Wenhua Lu, Meiyan Han, Nakarin Suwannarach, Abdallah M Elgorban, Alanoud T Alfagham, Fuqiang Yu, Dongqin Dai, Lijuan Zhang, Chathurika Karunanayake, Jaturong Kumla, Samantha C Karunarathna
{"title":"Two novel species belonging to <i>Psathyrella</i> sections <i>Atomatae</i> and <i>Hydrophilae</i> (Psathyrellaceae, Agaricales) from Yunnan Province, China, based on morphological and multi-locus phylogenetic analyses.","authors":"Dege Zheng, Saowaluck Tibpromma, Wenhua Lu, Meiyan Han, Nakarin Suwannarach, Abdallah M Elgorban, Alanoud T Alfagham, Fuqiang Yu, Dongqin Dai, Lijuan Zhang, Chathurika Karunanayake, Jaturong Kumla, Samantha C Karunarathna","doi":"10.3897/mycokeys.129.179449","DOIUrl":"https://doi.org/10.3897/mycokeys.129.179449","url":null,"abstract":"<p><p>This study describes two collections of saprobic gilled mushrooms morphologically identified as <i>Psathyrella</i> and collected in Qujing, Yunnan Province, China. Based on multi-gene phylogenetic analyses of nrITS, nrLSU, and <i>tef</i>-1α sequences, two collections were confirmed to belong to the <i>Psathyrella</i> sections <i>Atomatae</i> and <i>Hydrophilae</i>. Morphologically, <i>Psathyrella qujinguniversitatica</i> (<i>Psathyrella</i> sect. <i>Atomatae</i>) is characterized by small basidiomata, a beige to light brown pileus, large basidiospores, and partially thick-walled cheilocystidia, while <i>P. yunnanensis</i> (<i>Psathyrella</i> sect. <i>Hydrophilae</i>) is characterized by a pileus that gradually changes from orange-brown to lighter towards the margin, with the edge light brown to brown, distinct striations, a fibrillose veil, larger basidia, and partially thick-walled cheilocystidia. Descriptions, illustrations, and phylogenetic analyses of the two new species are provided. In addition, the present study updates the number of <i>Psathyrella</i> species reported from China to 55, along with their known distribution.</p>","PeriodicalId":48720,"journal":{"name":"Mycokeys","volume":"129 ","pages":"1-22"},"PeriodicalIF":3.6,"publicationDate":"2026-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12946828/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147327862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}