Morphology and molecular analyses reveal three new species of Botryosphaeriales isolated from diseased plant branches in China Author Lin, Lu The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China Author Bai, Yukun The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China Author Pan, Meng The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China Author Tian, Chengming The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China Author Fan, Xinlei https://orcid.org/0000-0002-4946-4442 The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China xinleifan@bjfu.edu.cn text MycoKeys 2023 2023-04-26 97 1 19 http://dx.doi.org/10.3897/mycokeys.97.102653 journal article http://dx.doi.org/10.3897/mycokeys.97.102653 1314-4049-97-1 B1CB07CBA9615AC78EBABF12E18FB465 Dothiorella alpina (Y. Zhang ter. & Min Zhang) Phookamsak & Hyde, Asian Journal of Mycology 3(1): 168 (2020) Spencermartinsia alpina = Spencermartinsia alpina Y. Zhang ter. & Ming Zhang, Mycosphere 7(7): 1058 (2016). Description. See Hyde et al. 2020 . Materials examined. China , Yunnan Province , Diqing Tibetan Autonomous Prefecture , Shangri-La City , Sanba County , East Ring Road , 27°36'18"N , 100°1'19"E , on dead branches of Populus szechuanica , 9 August 2022 , Lu Lin & Min Lin (BJFC CF20230106, living culture CFCC 58299) . Notes. Dothiorella alpina was first introduced by Zhang et al. (2016a) as Spencermartinsia alpina , which has dark brown and 1-septate conidia. Hyde et al. (2020) transfer S. alpina to Dothiorella based on phylogenetic analyses of a concatenated dataset (ITS+ tef1 -α) and morphological similarity. Dothiorella alpina was recorded on Cirus unshiu in Hunan Province, China, and Platycladus orientalis and Ipomoea sp. in Yunnan Province, China. In this study, a new record of Do. alpina from the host Populus szechuanica is included.