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Issue: Vol. 660 No. 1: 16 Jul. 2024
Type: Article
Published: 2024-07-16
DOI: 10.11646/phytotaxa.660.1.5
Page range: 55-64
Abstract views: 1
PDF downloaded: 0

Appendopyricularia guttulata sp. nov., a lignicolous freshwater fungus from Dianchi Lake in Yunnan, China

College of Agriculture and Biological Science, Dali University, Dali 671003, Yunnan, P.R. China
Engineering and Research Center for Southwest Biopharmaceutical Resource of National Education Ministry of China, Guizhou University, Guiyang, 550025, Guizhou, P.R. China
College of Agriculture and Biological Science, Dali University, Dali 671003, Yunnan, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
College of Agriculture and Biological Science, Dali University, Dali 671003, Yunnan, P.R. China
College of Agriculture and Biological Science, Dali University, Dali 671003, Yunnan, P.R. China, Co-Innovation Center for Cangshan Mountain and Erhai Lake Integrated Protection and Green Development of Yunnan Province, Dali University, Dali 671003, Yunnan, P.R. China
1 new species Barbatosphaeriaceae freshwater fungi phylogeny taxonomy Fungi

Abstract

During an investigation into species diversity of lignicolous freshwater fungi from the plateau lakes in Yunnan Province, China, a hyphomycetous fungus was collected from Dianchi Lake. The new isolate was placed in Appendopyricularia as a sister taxon of Appendopyricularia juncicola within Barbatosphaeriaceae based on the phylogenetic analysis of combined ITS and LSU sequence data. The fungus is characterized by acrogenous, fusoid, guttulate conidia that are 3–4 septate and have a flexuous central apical appendage. It exhibits more pronounced guttulate appendages and more prominent denticle sporulation structure. Therefore, Appendopyricularia guttulata is introduced as a new species based on morphological characteristics and phylogenetic evidence. The detailed description and illustrations of the new species are provided, as well as the morphological comparison with similar taxa.

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