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Issue: Vol. 391 No. 3: 4 February 2019
Type: Article
Published: 2019-02-04
DOI: 10.11646/phytotaxa.391.3.4
Page range: 207–217
Abstract views: 23
PDF downloaded: 2

Two new species of Amphisphaeria (Amphisphaeriaceae) from northern Thailand

Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou Province 550006, P.R. China School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, P.R. China Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou Province 550006, P.R. China School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, P.R. China
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 132, Lanhei Road, Kunming 650201, China
Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand Center of Excellence in Bioresources for Agriculture, Industry and Medicine, Faculty of Science, Chiang Mai University, 50200, Thailand
2 new taxa Amphisphaeriales phylogeny taxonomy woody branches Fungi

Abstract

Amphisphaeria flava and A. thailandica sp. nov. collected from dead woody branches in northern Thailand, are described and illustrated in this study. Both taxa share ascomata with a brown outer peridium and 1-septate brown ascospores in uniseriate asci. Amphisphaeria flava is characterized by a pale yellow host surface around the ostiole, a comparatively thin peridium and multi-guttulate mature ascospores. Amphisphaeria thailandica is characterized by subglobose to oval ascospores. Maximum parsimony, maximum likelihood and Bayesian inference analyses of a combined LSU and ITS DNA sequence matrix shows that A. flava and A. thailandica are distinct from other Amphisphaeria species (with molecular data available) in family Amphisphaeriaceae. A key to accepted Amphisphaeria species is provided.