Coryneum Nees

Wang, Caixia, Jiang, Ning, Liu, Chuli, Xu, ZiYan, Lu, Hailong & Ma, Rong, 2025, Morphology and molecular phylogeny reveal new species and records of Diaporthales from Betula in Xinjiang, China, MycoKeys 125, pp. 167-204 : 167-204

Coryneum Nees , Syst. Pilze (Würzburg): 34 (1816)

= Pseudovalsa Ces. & De Not. , Comm. Soc. crittog. Ital. 1 (fasc. 4): 206 (1863).

Notes.

Coryneum , typified by C. umbonatum , is the largest genus within the family Coryneaceae . The asexual morphs of Coryneum are commonly observed and are predominantly found on tree genera such as Betula , Castanea and Quercus ( Senanayake et al. 2017; Jiang et al. 2018, 2019). Species in this genus are characterised by transversely distoseptate, brown conidia ( Senanayake et al. 2017). Currently, the delimitation of species within Coryneum relies on a combination of morphological characteristics and molecular phylogenetic analyses, based on ITS, LSU, rpb 2 and tef 1 loci ( Jiang et al. 2018, 2019). Nevertheless, the lack of molecular data for many described species remains a constraint for accurate species identification ( Jiang et al. 2018, 2019). Species of Coryneum are commonly reported as plant pathogen causing canker diseases and some species are saprobic on decaying wood contributing to nutrient cycling ( Senanayake et al. 2017, 2018).