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Issue: Vol. 441 No. 1: 30 April 2020
Type: Article
Published: 2020-04-30
DOI: 10.11646/phytotaxa.441.1.2
Page range: 19–34
Abstract views: 27
PDF downloaded: 1

Four freshwater dematiaceous hyphomycetes in Sordariomycetes with two new species of Parafuscosporella

Faculty of Agriculture and Food, Kunming University of Science & Technology, Kunming 650500, People’s Republic of China
Faculty of Agriculture and Food, Kunming University of Science & Technology, Kunming 650500, People’s Republic of China Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
Faculty of Agriculture and Food, Kunming University of Science & Technology, Kunming 650500, People’s Republic of China
No. 128/1-J, Azad Housing Society, Curca, Goa Velha, Goa, India
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
Faculty of Agriculture and Food, Kunming University of Science & Technology, Kunming 650500, People’s Republic of China
2 new species Asexual morphs Morphology Multi-gene phylogeny New taxa Taxonomy Fungi

Abstract

A collection of lignicolous freshwater fungi in the Greater Mekong Subregion resulted in four interesting dematiaceous hyphomycetes with similar morphology. The taxa had sporodochial colonies, micronematous to semi-macronematous conidiophores and subglobose, ellipsoidal to broadly pyriform, 0–1-septate, dark brown to black conidia. Based on morphological characters and phylogenetic analyses of combined LSU, SSU, ITS and RPB2 sequence data, Parafuscosporella aquatica sp. nov., P. pyriformis sp. nov., Conioscypha tenebrosa and Vanakripa minutiellipsoidea are identified. Parafuscosporella aquatica and P. pyriformis cluster within Fuscosporellaceae (Fuscosporellales), while C. tenebrosa and V. minutiellipsoidea are placed within Conioscyphales. This is the first report on the phylogenetic placement of Vanakripa. Descriptions and illustrations of the new collections are provided.