MycoBank number:MB 551448;Index Fungorum number:IF 551448;Facesoffungi number: FoF 00963; 2 morphological species (Species Fungorum 2020), 2 species with molecular data.

Type species –Pseudoasteromassaria fagiM. Matsum. & Kaz. Tanaka, Fungal Divers.: 75: 53 (2015).

Notes – Morphological characteristics ofPseudoasteromassariaare similar toAsteromassaria(Pleomassariaceae) (Tibpromma et al. 2017). Both sexual and asexual morphs are recorded for this genus (Tibpromma et al. 2017). The genus contains two species collected from Japan and Thailand as parasitic on twigs ofFagus crenataand saprobic on submerged wood in freshwater habitats, respectively (Ariyawansa et al. 2015a, Tibpromma et al. 2017). The genus is characterized by scattered, immersed, globose ascomata, 8-spored, bitunicate, fissitunicate, cylindric to clavate asci and 2–3 overlapping seriate, brown, fusiform, 1–3-septate ascospores (Ariyawansa et al. 2015a).

Species