Fungalpedia – Note 2221, Teratosphaeria
Teratosphaeria Syd. & P. Syd.
Citation when using this data: Hongsanan S et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Teratosphaeriaceae, Mycosphaerellales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
In morphology, Teratosphaeria resembles Mycosphaerella (current name Ramularia), but Müller & Oehrens (1982) separated them based on their ascomatal arrangement and periphysate ostioles. Kirk et al. (2001) placed Teratosphaeria in Pleosporaceae. Pleosporaceae and Teratosphaeria have been regarded as members in Clypeosphaeriaceae, Montagnellaceae, Stigmateaceae (Syn. Venturiaceae) and Phaeosphaeriaceae (Müller & Oehrens 1982, Taylor et al. 2003). Taylor et al. (2003) showed that the type species of Teratosphaeria resided in Mycosphaerella sensu stricto, thus regarded the former as a synonym of the latter. However, Crous et al. (2007a) showed that Teratosphaeria has a distinct phylogenetic lineage in Capnodiales which also clearly separated it from Mycosphaerellaceae. Crous et al. (2007a) compared the morphological characters between the type species and the other species which group in Teratosphaeria sensu stricto. The epitype of Teratosphaeria fibrillosa was designated by Crous et al. (2007a). Crous et al. (2009d, e) showed that Teratosphaeria has Kirramyces and Colletogloeopsis as its asexual morphs. Thus, Kirramyces and Colletogloeopsis have been regarded as synonym of Teratosphaeria (Crous et al. 2009d, e; Art. 59.1).
Type species: Teratosphaeria fibrillosa Syd. & P. Syd.
Other accepted species: Species Fungorum – search Teratosphaeria.
Figure 1 – Teratosphaeria fibrillose (BPI 619596). a Herbarium specimen. b Ascomata arranged under a brown flattened structure. c Septate hyphae. d–e Vertical section through ascoma. f Peridium. g–j Asci. k–m Ascospores. Scale bars: e = 200 μm, d = 100 μm, f–j = 50 μm, c, k–m = 20 μm.
References
Muller E, Oehrens E. 1982 – On the genus Teratosphaeria (Ascomycetes). Sydowia 35, 138–142.
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 3 April 2026