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During an investigation of Xylariaceae from 2019 to 2020, isolates representing eight Nemania (Xylariacese) species were collected from Yunnan, Guizhou and Hainan Provinces in China. Morphological and multi-gene phylogenetic analyses, based on combined ITS, α-actin, rpb2 and β-tubulin sequences, confirmed that six of them are new to science, viz. Nemania camelliae, N. changningensis, N. cyclobalanopsina, N. feicuiensis, N. lishuicola and N. rubi; one is a new record (N. caries) for China and one is a known species (N. diffusa). Morphological descriptions and illustrations of all species are detailed. In addition, the characteristics of Nemania are summarised and prevailing contradictions in generic concepts are discussed.

During an investigation of Xylariaceae from 2019 to 2020, isolates representing eight Nemania (Xylariacese) species were collected from Yunnan, Guizhou and Hainan Provinces in China. Morphological and multi-gene phylogenetic analyses, based on combined ITS, α-actin, rpb2 and β-tubulin sequences, confirmed that six of them are new to science, viz. Nemaniacamelliae , N.changningensis , N.cyclobalanopsina , N.feicuiensis , N.lishuicola and N.rubi ; one is a new record ( N.caries ) for China and one is a known species ( N.diffusa ). Morphological descriptions and illustrations of all species are detailed. In addition, the characteristics of Nemania are summarised and prevailing contradictions in generic concepts are discussed., (Yin Hui Pi, Si Han Long, You Peng Wu, Li Li Liu, Yan Lin, Qing De Long, Ji Chuan Kang, Ying Qian Kang, Chu Rui Chang, Xiang Chun Shen, Nalin N. Wijayawardene, Xu Zhang, Qi Rui Li.)