Introducing Nigrograna wuhanensis sp. nov. (Nigrogranaceae, Pleosporales) from Camellia japonica in China
Authors:   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China, Shu Yong-xin ,   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, Cheng Ruo-lin ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China, Huang Jia-lin ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China, Li Kai-lin ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China, Zhao Si-zheng ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China, Zhao Hai-jun ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, 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, Dong Wei ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China, Dong Zhang-yong ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China, Doilom Mingkwan ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China, Xu Biao ,   Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Aff airs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China
Published: May 2023

In this study, we introduce a new species Nigrograna wuhanensis, which was collected from Camellia japonica in Hubei Province, China. The new species was established based on morphological characteristics and multi-locus phylogenetic analysis of combined SSU, LSU, ITS and tef1-α sequence data. Nigrograna wuhanensis is characterized by scattered, immersed ascomata with a long neck superfi cial on the substrate, clavate and short pedicellate asci, and fusoid, pale brown to dark brown, mostly 3-septate ascospores which are deeply constricted and strongly pigmented at the septa. Nigrograna wuhanensis differs from its phylogenetically related species N. jinghongensis in having 3-septate ascospores and a long neck growing on the ascomata. The illustration and description of the new taxon are provided.