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Published: 2022-11-23

Neohormodochis septispora gen. et sp. nov. (Stictidaceae) from Yunnan Province, China

Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand; CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China; Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
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
CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China; Centre for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, Yunnan, P.R. China
CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China; Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; Innovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China
Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
microfungi Ostropales phylogeny taxonomy saprophytes Fungi


Stictidaceae has ubiquitous distribution and its members inhabit a wide range of hosts and substrates. However, many genera in this family are represented by a limited number of species and molecular data is lacking for those old genera. Documentation and description of new species is necessary to bring insight into the natural classification of Stictidaceae. An investigation of microfungi in Yunnan Province, China led to the discovery of the novel genus et species, Neohormodochis septispora based on morphological evidence and phylogenetic characterization of combined LSU, ITS, mtSSU and RPB2 sequnces. White-pruinose conidiomata, crystalline conidiomatal wall, cylindrical conidiogenous cells and dominantly sepate conidia arranged in branched chain characterize the novel genus. The phylogenetic placement of Dendroseptoria was uncertain and in this study, we confirmed its placement in Stictidaceae based on the phylogenetic affiliation of D. mucilaginosa.


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