Phaeobotryon aplosporum M. Pan & X.L. Fan, Mycol. Prog. 18(11): 1356 (2019)

Description.

See Pan et al. 2019.

Materials examined.

China, Beijing City, Mentougou District, Qingshui County, Baihuashan Natural Scenic Area, 39°51'11"N, 115°32'37"E, on dead branches of Juglans mandshurica, 23 August 2022, Lu Lin & Xinlei Fan (BJFC CF20230112, living culture CFCC 58596; BJFC CF20230113, living culture CFCC 58784) .

Notes.

Phaeobotryon aplosporum was first discovered from Rhus typhina and Syzygium aromaticum (Pan et al. 2019). It can be distinguished from other species in Phaeobotryon by its aseptate conidia (Pan et al. 2019). In this study, the conidia formed on the specimen BJFC CF20230112 are dark brick when mature, aseptate, (16.5-20.0 × 6.0-9.0 μm (av. ± S.D. = 18.3 ± 1.1 × 7.5 ± 0.8 μm), which overlap with the morphological characteristics described by Pan et al. (2019). Phylogenetically, the isolates CFCC 58596 and 58784 were clustered in a clade with Ph. aplosporum with high statistical support (ML/BI = 99/1). Therefore, the isolates CFCC 58596 and 58784 are identified as Ph. aplosporum . The current study extends its host range to Juglans mandshurica .