Setophaeosphaeria Crous & Y. Zhang

Setophaeosphaeria Crous & Y. Zhang ter Notes. Crous and Zhang (2014) introduced the genus Setophaeosphaeria to accommodate Se. hemerocallidis isolated from leaf of Hemerocallis fulva (Crous et al. 2014). Currently, eight species are recognized in MycoBank (Accession date: March 10, 2025) for Setophaeosphaeria. Setophaeosphaeria species have been recorded from both sexual and asexual stage. Conidiomata are pycnidial, brown, globose, immersed or erumpent with central ostiole. Pycnidial wall is brown with 2–3 or 6–8 layers of textura angularis, pale brown or brown. Setae brown or pale brown, septate, unbranched, flexuous, smooth with obtuse ends. Conidiophores are reduced to conidiogenous cells. Conidiogenous cells are hyaline, ampulliform, smooth, proliferating several times percurrently at apex, lining the inner cavity. Conidia are hyaline, cylindrical or subcylindrical, smooth, guttulate, aseptate with obtuse ends (Crous et al. 2014, 2017, 2018 b; Zhang et al. 2020). Ascomata are globose, immersed on host, subepidermal with central ostiole consists of 2–3 layers of brown textura angularis peridium. Asci are eight-spored, bitunicate, subcylindrical to narrowly ellipsoidal, stipitate containing pale brown or hyaline, fusoid-ellipsoidal, aseptate or septate, smooth ascospores (Crous et al. 2014, 2018 b). Setophaeosphaeria species are widely distributed and have been reported from Australia, Brazil, China, Italy, Netherlands, and South Korea (Crous et al. 2017, 2018 b; Choi et al. 2024; Liu et al. 2024). However, most of these strains were isolated from the leaf spots and branch dieback (Liu et al. 2024).