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Issue: Vol. 676 No. 1: 6 Dec. 2024
Type: Article
Published: 2024-12-06
DOI: 10.11646/phytotaxa.676.1.4
Page range: 63-74
Abstract views: 97
PDF downloaded: 9

Two new freshwater dematiaceous hyphomycetes of Pleosporales from Yunnan Province, China

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
College of Agriculture and Biological Science, Dali University, Dali 671003, Yunnan, P. R. China
School of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550003, P.R. China
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.
2 new species freshwater fungi morphology phylogeny taxonomy Fungi

Abstract

The diversity of lignicolous freshwater fungi in southwestern China is currently being studied. In this paper, two fungal isolates were collected from freshwater habitats in Yunnan Province, China. Based on morphological comparisons and the results of phylogenetic analysis of combined ITS, LSU, rpb2, SSU, and tef1-α sequence data, we introduce two new species, Aquadictyospora nujiangensis and Dendryphion verrucosum. Aquadictyospora nujiangensis is characterized by micronematous conidiophores and muriform, cheiroid conidia composed of compactly adpressed, curved rows of cells. Dendryphion verrucosum is characterized by erect, apically branched conidiophores, polytretic conidiogenous cells, and solitary or catenate to branched, monilioid conidia. This study contributes to the lignicolous freshwater fungal diversity in southwestern China.

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