Hysterium Pers., Tent. disp. meth. fung. (Lipsiae): 5 (1797).
MycoBank number: MB 2464; Index Fungorum number: IF 2464; Facesoffungi number: FoF 0004; 47 morphological species (Species Fungorum 2020), 16 species with molecular data.
Type species – Hysterium pulicare Pers.
Notes – A historical overview of the nomenclature of Hysterium was presented in Boehm et al. (2009a). This genus is characterised by three- or more transversely-septate, pigmented versicolorous or concolorous asymmetric phragmospores, borne in hysterothecia Boehm et al. (2009a, b).