Dictyoarthrinium S. Hughes, Mycol. Pap. 48: 29 (1952)
MycoBank number: MB 7993; Index Fungorum number: IF 7993; Facesoffungi number: FoF 12991; 7 morphological species (Species Fungorum 2020), 1 species with sequence data.
Type species – Dictyoarthrinium quadratum S. Hughes
Notes – Dictyoarthrinium was erected by Hughes (1952) for two hyphomycetes collected in Ghana, with D. quadratum as the type species. The genus is characterized by basauxic conidiogenous cell development, conidiophores that are minutely verruculose, subhyaline and transversely septate, conidiophore mother cells which are often hyaline or pale brown and cup-shaped, and conidia of square-to-spherical, subspherical or oblong, pale-to-dark-brown, often 4-celled, and sometimes 16-celled. Previous studies have accommodated Dictyoarthrinium in Apiosporaceae, Sordariomycetes. Subsequent studies transferred Dictyoarthrinium to Didymosphaeriaceae, Dothideomycetes based on morphological and molecular evidence. Currently, ten species are accepted in Dictyoarthrinium.