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Issue: Vol. 491 No. 3: 23 March 2021
Type: Article
Published: 2021-03-23
DOI: 10.11646/phytotaxa.491.3.2
Page range: 217–229
Abstract views: 75
PDF downloaded: 62

The taxonomy and phylogeny of Austropleospora ochracea sp. nov. (Didymosphaeriaceae) from Guizhou, China

Engineering Research Center of the Utilization for Characteristic Bio-Pharmaceutical Resources in Southwest, Ministry of Education, Guizhou University, Guiyang, Guizhou Province 550025, People’s Republic of China
Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, People’s Republic of China
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Innovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China
Engineering Research Center of the Utilization for Characteristic Bio-Pharmaceutical Resources in Southwest, Ministry of Education, Guizhou University, Guiyang, Guizhou Province 550025, People’s Republic of China Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
Fungi Dothideomycetes muriform new species taxonomy

Abstract

Austropleospora is a genus of Didymosphaeriaceae with only three extant species. A survey of saprobic ascomycetes in Guizhou Province, China, discovered a new Austropleospora species on dead twigs in a terrestrial habitat. The molecular phylogeny based on a combined SSU-LSU-tef1-ITS DNA sequence dataset confirmed the new species’ taxonomic position in Austropleospora. Austropleospora ochracea sp. nov. is characterized by globose to subglobose and uni-loculate ascoma with a centric short papilla, brown to dark brown peridium with cells of textura angularis to textura prismatica and conical, comparatively smaller ascospores with narrowly rounded polar ends. The new taxon is compared with similar species in Austropleospora, and its taxonomic status is briefly discussed.