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Issue: Vol. 253 No. 1: 21 March 2016
Type: Article
Published: 2016-03-21
DOI: 10.11646/phytotaxa.253.1.5
Page range: 71–80
Abstract views: 57
PDF downloaded: 40

Poaceascoma aquaticum sp. nov. (Lentitheciaceae), a new species from submerged bamboo in freshwater

College of Agriculture & Biology, Dali University, Dali, 671003, Yunnan, PR China.
College of Science, Botany and Microbiology Department, King Saud University, Riyadh 1145, Saudi Arabia.
College of Agriculture & Biology, Dali University, Dali, 671003, Yunnan, PR China. College of Basic Medicine, Dali University, Dali, Yunnan 671000, China.
Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Institute of Biotechnology and Germplasmic Resources, Yunnan Academy of Agricultural Sciences, Kunming, 650223, PR China.
Faculty of Environmental Sciences & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, PR China.
College of Agriculture & Biology, Dali University, Dali, 671003, Yunnan, PR China. Faculty of Environmental Sciences & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, PR China.
Centre of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Aquatic fungi Lentitheciaceae Phylogeny Taxonomy Fungi

Abstract

Poaceascoma aquaticum sp. nov. (Lentitheciaceae) was found on decaying bamboo submerged in a freshwater stream in northern Thailand. The new species is introduced based on its unique morphology and phylogeny. Poaceascoma aquaticum is characterized by black, semi-immersed or erumpent, papillate ascomata, bitunicate, cylindrical to cylindric-clavate, short pedicellate asci and filiform, pale brown to brown ascospores. Phylogenetic analyses of combined LSU, SSU and RPB2 sequence data shows that Poaceascoma aquaticum forms a robust clade with P. helicoides in the family Lentitheciaceae (Pleosporales). Poaceascoma aquaticum is described, illustrated and compared with related taxa.