Byssocallis Syd. Annls mycol. 25(1/2): 14 (1927)
MycoBank number: MB 700; Index Fungorum number: IF 700; Facesoffungi number: FoF 09038; – 2 morphological species (Species Fungorum 2020), molecular data unavailable.
Type species: Byssocallis phoebes Syd., Annls mycol. 25(1/2): 14 (1927).
Notes: Boonmee et al. (2011) excluded this genus from Perisporiopsidaceae based on morphology of isolectotype specimen (F10891). Pem et al. (2019c) re-examined the syntype specimen of Byssocallis phoebes (E00455471) and found that it shares common characters with genera in Perisporiopsidaceae such as occur on leaf surface, superficial ascomata with surrounding mycelium and ellipsoidal oblong, multi-septate, hyaline ascospores. Thus, they transferred Byssocallis to Perisporiopsidaceae.