Brachysporium Sacc., Syll. fung. (Abellini) 4: 423 (1886)
MycoBank number: MB 7444; Index Fungorum number: IF 7444; Facesoffungi number: FoF 00593; 25 morphological species (Species Fungorum 2020), 3 species with sequence data.
Type species – Brachysporium obovatum (Berk.) Sacc.
Notes – Brachysporium was introduced by Saccardo (1886). Brachysporium comprise many saprobic wood-inhabiting species (Ellis 1971, Holubová-Jechová 1972, Réblová & Seifert 2004b). Réblová & Seifert (2004b) established the sexual morph genus Cryptadelphia and linked it with Brachysporium asexual morphs. Cryptadelphia was synonymized under Brachysporium due to nomenclatural priority. The sexual morph of this genus is characterised by superficial, globose to subglobose ascomata with ostioles, 8-spored, unitunicate, cylindrical to clavate asci with long pedicels and a distinct, refractive apical ring, and hyaline, fusiform to ellipsoidal to oblong-lemon- shaped ascospores with a central septum (Réblová & Seifert 2004b). The asexual morph has macronematous, mononematous, unbranched conidiophores, polyblastic, terminal, denticulate conidiogenous cells, and clavate, ellipsoidal, fusiform, limoniform, obovoid or pyriform, septate, brown conidia, which often have one or more cells paler than the others (Ellis 1971, Réblová & Seifert 2004b, Markovskaja & Treigienė 2007).
Figure 253 – Brachysporium obovatum, redrawn from Seifert et al. (2011)