Morphophylogenetic evidence reveals four new fungal species within Tetraplosphaeriaceae (Pleosporales, Ascomycota) from tropical and subtropical forest in China

MycoKeys. 2023 Dec 6:100:171-204. doi: 10.3897/mycokeys.100.113141. eCollection 2023.

Abstract

Tetraplosphaeriaceae (Pleosporales, Ascomycota) is a family with many saprobes recorded from various hosts, especially bamboo and grasses. During a taxonomic investigation of microfungi in tropical and subtropical forest regions of Guizhou, Hainan and Yunnan provinces, China, several plant samples were collected and examined for fungi. Four newly discovered species are described based on morphology and evolutionary relationships with their allies inferred from phylogenetic analyses derived from a combined dataset of LSU, ITS, SSU, and tub2 DNA sequence data. Detailed illustrations, descriptions and taxonomic notes are provided for each species. The four new species of Tetraplosphaeriaceae reported herein are Polyplosphaeriaguizhouensis, Polyplosphaeriahainanensis, Pseudotetraploayunnanensis, and Tetraploahainanensis. A checklist of Tetraplosphaeriaceae species with available details on their ecology is also provided.

Keywords: Anamorphic fungi; Dothideomycetes; checklist; ribosomal genes; species diversity; taxonomy.

Grants and funding

This work was funded by grants from the National Natural Science Foundation of China (NSFC Grants Nos. 32170019 & 31460011) and the Open Fund Program of Engineering Research Centre of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University No. GZUKEY20160702. The authors are grateful to the Thailand Research Fund grant “Impact of climate change on fungal diversity and biogeography in the Greater Mekong Sub-region” (RDG6130001).