Cycloschizon Henn., Bot. Jb. 33: 39 (1902).
MycoBank number: MB 1376; Index Fungorum number: IF 1376; Facesoffungi number: FoF 02305; 13 morphological species (Species Fungorum 2020), molecular data unavailable.
Type species: Cycloschizon brachylaenae (Rehm) Henn., Bot. Jb. 33: 39 (1902).
≡ Schneepia brachylaenae Rehm, Hedwigia 40(Beibl.): (173) (1901).
Notes: The type species Cycloschizon brachylaenae was collected on living leaves of Brachylaena neriifolia from South Africa. Index Fungorum (2019) lists 14 species, whereas Inácio and Cannon (2008) compared 12 taxa by their hosts, distributions and main morphological characters. Cycloschizon is characterized by clustered, superficial, black, circular, flat ascomata opening by one circumferential, producing broadly clavate to subglobose, thick-walled asci and ellipsoidal ascospores with one septum (Inácio and Cannon 2008). For a drawing and other details, see Inácio and Cannon (2008), Wijayawardene et al. (2018, 2020).