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Issue: Vol. 505 No. 2: 31 May 2021
Type: Article
Published: 2021-05-31
DOI: 10.11646/phytotaxa.505.2.6
Page range: 201–212
Abstract views: 29
PDF downloaded: 2

Amphibambusa hongheensis sp. nov., a novel bambusicolous ascomycete from Yunnan, China

1. School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand 2. CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P.R. China 3. Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
1. CAS Key Laboratory for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P.R. China 2. University of Chinese Academy of Sciences, Beijing 100049, P.R. China
1. CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P.R. China 2. CIFOR-ICRAF China Program, World Agroforestry (ICRAF), Kunming 650201, Yunnan, P.R. China
1. Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand 2. Research Center in Bioresources for Agriculture, Industry and Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
1. School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
1. CAS Key Laboratory for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, P.R. China 2. University of Chinese Academy of Sciences, Beijing 100049, P.R. China
1 novel taxon Cainiaceae sexual morph Sordariomycetes taxonomy Fungi

Abstract

Amphibambusa hongheensis sp. nov. was collected from dead bamboo culms in Honghe County of Yunnan Province, China. The novel species is introduced based on the morpho-molecular approach. Morphologically, A. hongheensis fits well with Amphibambusa and is characterized by immersed, globose to subglobose ascomata, with protruding carbonaceous papilla, unitunicate, cylindrical to elongate fusiform, subsessile to short pedicellate asci with a J+, subapical ring, and fusiform, hyaline to pale brown, 1-septate ascospores, longitudinally striated, and surrounded by a thick mucilaginous sheath. Phylogenetic analyses of a concatenated ITS-LSU sequence dataset based on maximum-likelihood and Bayesian inference criteria revealed the phylogenetic affinity of A. hongheensis within Cainiaceae (Xylariales, Sordariomycetes). Amphibambusa hongheensis formed an independent subclade sister to A. bambusicola with moderate support (81% ML, 0.96 PP) and clustered with the genus Arecophila in Cainiaceae. Amphibambusa hongheensis is the second species accommodated in Amphibambusa and is reported from Yunnan, China, for the first time. Detailed description, illustration and updated phylogeny are provided.