Neoacanthostigma Boonmee, Bhat & K.D. Hyde, Fungal Diversity 68(1): 278 (2014).
MycoBank number: MB 550576; Index Fungorum number: IF 550576; Facesoffungi number: FoF 00214; – 3 morphological species (Species Fungorum 2020), 1 species with molecular data.
Type species: Neoacanthostigma fusiforme Boonmee, Bhat & K.D. Hyde, Fungal Diversity 68(1): 279 (2014).
Notes: Neoacanthostigma was introduced based on phylogenetic and morphological evidence. Lu et al. (2017c) introduced four new Neoacanthostigma species. Lu et al. (2018b) accepted only the type species N. fusiforme based on phylogenetic and morphological analyses. The ascomata of Neoacanthostigma are globose to subglobose, reddish brown to dark brown, to black, and are covered by black setae. Asci are cylindric-clavate with a short rounded pedicel, ascospores are narrowly fusiform and tapering towards the rounded ends. The asexual morph of Neoacanthostigma is characterized by helicosporous hyphomycetous, which lack conidiophores, and conidia are acrogenous with loosely coiled conidial filaments (Boonmee et al. 2014b; Lu et al. 2018b).