Johansonia Sacc., Syll. fung. (Abellini) 8: 785 (1889).
MycoBank number: MB 2533; Index Fungorum number: IF 2533; Facesoffungi number: FoF 07635; 13 morphological species (Species Fungorum 2020), 1 species with molecular data.
Type species – Johansonia setosa (G. Winter) Sacc.
Notes – The genus is associated with brown spots on leaves, and is characterised by superficial, solitary, pulvinate, dark brown to black ascomata, lacking ostiole, brown, straight to curved ascomatal setae, with basal T-cell devoid of rhizoids, acutely to obtusely rounded, apical septum, hypha-like, septate, branched pseudoparaphyses, subcylindrical to clavate asci, with short furcate pedicel and an ocular chamber, ovoid to ellipsoidal, septate ascospores (Doilom et al. 2018). The asexual morph is undetermined. Johansonia was placed in Schizothyriaceae, Saccardiaceae and Phillipsiellaceae (Müller & von Arx 1962, von Arx & Müller 1975, Barr 1993b). Wijayawardene et al. (2018) accepted this genus in Saccardiaceae. However, molecular data show that this genus is a member of Capnodiales and should be placed in its own family (Doilom et al. 2018).
Species