Chaetomastia (Sacc.) Berl., Icon. fung. (Abellini) 1(1): 38 (1890).
MycoBank number: MB 946; Index Fungorum number: IF 946; Facesoffungi number: FoF 08369; 10 morphological species (Species Fungorum 2020), no species with molecular data.
Type species – Chaetomastia hirtula (P. Karst.) Berl., Icon. fung. (Abellini) 1(1): 38 (1891).
≡ Sphaeria hirtula P. Karst., Fungi Fenniae Exsiccati, Fasc. 23: no. 825 (1869).
Notes – Chaetomastia was introduced by Saccardo (1883) (as a subgenus of Melanomma) to accommodate five species, M. canescens, M. cucurbitarioides, M. hirtulum, M. hispidulum and M. pilosellum. Chaetomastia was assigned in Teichosporaceae by Barr (2002) based on its saprobic or hyper-saprobic lifestyle, occurring on woody stems and peridium structure. Chaetomastia species are characterized in having superficial, globose or subglobose, black, coriaceous ascomata, thin, 1- layered, heavily pigmented peridium, mostly 4-spored, broadly cylindrical asci and ellipsoid to broadly fusoid, 3-septate brown ascospores (Zhang et al. 2012b).