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Issue: Vol. 459 No. 2: 11 September 2020
Type: Article
Published: 2020-09-11
DOI: 10.11646/phytotaxa.459.2.8
Page range: 181–189
Abstract views: 41
PDF downloaded: 1

Tetraploa aquatica (Tetraplosphaeriaceae), a new freshwater fungal species from Yunnan Province, China

College of Agriculture and Biological Sciences, Dali University, Dali 671003, Yunnan, P.R. China School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, P.R. China
College of Agriculture and Biological Sciences, Dali University, Dali 671003, Yunnan, P.R. China Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Formerly at Department of Botany, Goa University, Goa 403206, India; No. 128/1-J, Azad Housing Society, Curca, P.O. Goa Velha-403108, India
College of Agriculture and Biological Sciences, Dali University, Dali 671003, Yunnan, P.R. China
1 new species Asexual morph Dothideomycetes Phylogeny Taxonomy

Abstract

Asexual morph members of Tetraplosphaeriaceae (Pleosporales, Dothideomycetes) are generally hyphomycetes and usually found as saprobes occurring on various hosts in lentic habitats. Two isolates of a novel species, Tetraploa aquatica sp. nov., was collected from submerged decaying wood in Dulong river and a stream of Gaoligongshan mountain in Yunnan Province, China. The new species is characterized by short-cylindrical conidia, composed of 4-euseptate, short-cylindrical vertical columns which are verrucose at the base and with 4-setose vertical septate appendages. Tetraploa aquatica can be easily distinguished from other Tetraploa species by their columns which are 2–3-septate, aguttulate, vertical, setose
appendaged which tend to remain parallel to one another apically. Phylogenetic analyses of combined LSU, ITS and SSU sequence data support its natural placement in Tetraploa. Detailed description and illustrations of this species and comparisons with other morphologically similar taxa in Tetraploa are provided.