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Issue: Vol. 474 No. 2: 1 December 2020
Type: Article
Published: 2020-12-01
DOI: 10.11646/phytotaxa.474.2.3
Page range: 132–144
Abstract views: 21
PDF downloaded: 1

Hyaloterminalis, a novel genus of Coryneaceae in order Diaporthales 

Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand Department of Plant Medicine, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, Taiwan
CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, People’s Republic of China. Centre for Mountain Futures, Kunming Institute of Botany, Kunming 650201, Yunnan, People’s Republic of China.
Department of Plant Pathology, Agriculture College, Guizhou University, Guiyang 550025, People’s Republic of China
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
No. 128/1‑J, Azad Co‑Op Housing Society, Curca, Goa Velha 403108, India
Department of Plant Medicine, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, Taiwan
CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, People’s Republic of China. Centre for Mountain Futures, Kunming Institute of Botany, Kunming 650201, Yunnan, China
Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, Thailand Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand
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 Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, Thailand Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, People’s Republic of China
2 new taxa asexual morph phylogeny taxonomy Sordariomycetes Fungi

Abstract

The dematiaceous coelomycete Hyaloterminalis alishanensis gen. et sp. nov. (Coryneaceae, Diaporthales, Sordariomycetes) is introduced in this paper. It was isolated from dead branches of Cerasus sp. from the Ali Mountain, Taiwan. Coryneum was previously the only genus in Coryneaceae, and morphological similarity of Hyaloterminalis with the type genus is limited to broadly fusiform, brown conidia. Hyaloterminalis differs from Coryneum in having pycnidial conidiomata, persistent paraphyses and conidiophore morphology, with a long narrow hyaline tip to the apical cell and hyaline basal cells. Multigene phylogenetic analyses, using a combined LSU, ITS and TEF1-α sequence data generated from maximum likelihood, maximum parsimony and MrBayes analyses, confirmed that Hyaloterminalis forms a distinct lineage within Coryneaceae and its establishment as a new genus is well-supported. The new taxon is described, illustrated and compared with Coryneum. The ITS (MH861215) and LSU (MH872982) sequences obtained from the ex-type strain of Talekpea foeticia, confirm its status as a member in Coryneaceae. Therefore, Talekpea is accepted as a distinct genus in Coryneaceae.