Aaosphaeria Aptroot, Nova Hedwigia 60 (3–4): 329 (1995).

MycoBank number: MB 6184; Index Fungorum number: IF 6184; Facesoffungi number: FoF 08197; 1 morphological species (Species Fungorum 2020), 1 species with molecular data.

Type speciesAaosphaeria arxii (Aa) Aptroot, Nova Hedwigia 60 (3–4): 329 (1995).

Didymosphaeria arxii Aa, Stud. Mycol. 31: 20 (1989).

Notes – A detailed description can be found in Van der Aa (1989, as Didymosphaeria). The genus was referred to the Dothideales by Aptroot (1995) who also suggested that it could be close to Polycoccum in Dacampiaceae despite different asexual stages. The genus was tentatively accepted in Dacampiaceae by Lumbsch & Hundorf (2007) and Hyde et al. (2013). The type species was originally collected from soil of corn field (under Zea mays) in Colombia, with a culture isolated (Van der Aa 1989). It was also reported from different plant hosts Coffea, Mangifera, Solidago and Zigyphus (Aptroot 1995). According to the original description, A. arxii has a Microsphaeropsis asexual morph, but the type species of Microsphaeropsis was shown to cluster in Didymellaceae (de Gruyter et al. 2009), so that the asexual morph of Aaosphaeria should be defined as “microsphaeropsis-like”. Sequence data (ITS and LSU) were published by Vu et al. (2019).


  • Aaosphaeria arxii