Fungalpedia – Note 2154, Aaosphaeria
Aaosphaeria. Aptroot.
Citation when using this data: Hongsanan S et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank
Classification: Dacampiaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
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).
Type species: Aaosphaeria arxii (Aa) Aptroot, Nova Hedwigia 60 (3–4): 329 (1995).
Other accepted species: Species Fungorum – search Aaosphaeria.
References
Lumbsch HT, Huhndorf SM. 2007 – Outline of ascomycota–2007. Myconet 13, 1–58.
Entry by
Sinang Hongsanan, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Science and Oceanography, Shenzhen University, Shenzhen 518060, People’s Republic of China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50002, Thailand
Published online 8 April 2026