New species and records of Botryosphaeriales (Dothideomycetes) associated with tree dieback in Beijing, China Author Wu, Yingying https://orcid.org/0009-0007-5095-2738 The Key Laboratory for Silviculture and Conservation of the Ministry of Education, Beijing Forestry University, Beijing 100083, China Author Peng, Cheng The Key Laboratory for Silviculture and Conservation of the Ministry of Education, Beijing Forestry University, Beijing 100083, China Author Yuan, Rong https://orcid.org/0009-0006-5597-7531 The Key Laboratory for Silviculture and Conservation of the Ministry of Education, Beijing Forestry University, Beijing 100083, China Author Zhang, Mingwei The Key Laboratory for Silviculture and Conservation of the Ministry of Education, Beijing Forestry University, Beijing 100083, China Author Hu, Yang The Forestry Protection Station of Tonghzou Strict in Beijing, Beijing 101100, China Author Tian, Chengming 0000-0002-3352-7664 The Key Laboratory for Silviculture and Conservation of the Ministry of Education, Beijing Forestry University, Beijing 100083, China text MycoKeys 2024 2024-06-27 106 225 250 journal article 299051 10.3897/mycokeys.106.122890 c1609dc8-7d30-4bb0-815a-74c459f25412 Aplosporella yanqingensis L. Lin & X. L. Fan , MycoKeys 97: 9 (2023) Description. See Lin et al. 2023 a . Material examined. China , Beijing City , Tongzhou District , Central Green Forest Park , 39 ° 52 ' 16 " N , 116 ° 42 ' 04 " E , on the dead branches of Acer truncatum , 12 April 2023 , C. M. Tian , Y. M. Liang , C. Peng , Y. Hu & Y. Y. Wu , BJFC - S 1943 , living culture CFCC 70743 ; ibid . BJFC - S 1944 , living culture CFCC 70738 . Notes. Aplosporella yanqingensis was first discovered on the branches of Platycladus orientalis in Beijing ( Lin et al. 2023 a ). In this study, the two isolates ( CFCC 70738 and CFCC 70743 ) from Acer truncatum formed a clade with 100 % MP , 100 % ML , and 1.00 BYPP values in the multi-locus phylogenetic tree with A. yanqingensis (Fig. 2 ). Compared with the description of Lin et al. (2023 a ), this study has shorter conidia and thinner conidiogenous cells (11.0–16.5 × 6.0–9.0 µm vs. 16.0–21.5 × 6.0–9.5 µm and 5.0–20.5 × 1.0–2.0 µm vs. 6.0–13.5 × 2.0–3.0 µm). Thus, these isolates were identified as A. yanqingensis , and herewith we are providing a new host record for A. yanqingensis , Acer truncatum .