Fungalpedia – Note 2987, Oncopodiella
Oncopodiella G. Arnaud ex Rifai.
Citation when using this data: Jing Yang et al. 2023 – Fungalpedia.
Index Fungorum, Faceoffungi, MycoBank, GenBank, Fig 1.
Classification: Oncopodiellaceae, Oncopodiellales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi.
Notes: Arnaud (1954) introduced Oncopodiella with a single species O. tetraedrica. However, they were not validly published and lacked a Latin diagnosis. Rifai (1965) formally published the generic name and combined O. tetraedrica with Sporidesmium trigonellum as the type species O. trigonella based on the same morphology. Oncopodiella possesses macronematous, mononematous, subhyaline to pale brown conidiophores, polyblastic, sympodial conidiogenous cells with cylindrical denticles and dematiaceous, muriform, corniculate conidia in various shapes (trigonous, turbinate, subglobose, ellipsoidal, obovoid, pyriform and fusiform or irregular) with hyaline or subhyaline horned, protruding cells (Rifai 1965; Ellis 1971; Zhao and Zhang 2005; Magyar and Révay 2009). So far, 13 species are accepted in the genus with no known sexual morphs. Hernández-Restrepo et al. (2017) designated an epitype for O. trigonella, the generic type, and provided the sequence data which showed that O. trigonella (FMR 10788 = CBS 126413) is a member of Dothideomycetes but unrelated to other taxa and represents a potentially new fungal lineage.
Type species: Oncopodiella trigonella (Sacc.) Rifai, Persoonia 3(4): 409 (1965).
Other accepted species: Species Fungorum – search Oncopodiella.
Figure 1 – Oncopodiella trigonella (HKAS 112637) a Colony on wood. b–j Conidia. k Germinated conidium. Scale bars: a = 500 µm, b–k = 15 µm.
References
Arnaud G. 1954 – Mycologie concrète: genera II. Bull Trimest Soc Mycol Fr 69:265–306.
Ellis MB. 1971 – Dematiaceous hyphomycetes. Commonwealth Mycological Institute, Kew, England.
Rifai MA. 1965 – On Sporidesmium trigonellum Sacc. Persoonia 3(4):407–411.
Entry by
Jing Yang, School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China, School of Science, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang 550006, People’s Republic of China.
Published online 19 August 2026