Fungalpedia – Note 3141, Stromatonectriaceae
Stromatonectriaceae R.H. Perera, E.B.G. Jones, Maharachch., & K.D. Hyde, fam. nov.
Citation when using this data: Perera RH et al. 2023 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Dikarya, Fungi.
Saprobic, plant pathogenic, on woody substrates. Stromata pulvinate, erumpent from bark, variable in shape and colour, yellow over orange to red or purple, KOH-. Sexual morph: Ascomata perithecial, immersed or superficial, crowded atop the stroma surface, spheroid, soft-textured, KOH-. Hamathecium consisting exclusively of periphyses. Paraphyses present. Asci 8-spored, unitunicate, clavate or fusoid, lacking an apical ring. Ascospores bi-seriate, ellipsoid, oblong or fusoid, 1-septate, hyaline, yellowish or rosy, smooth-walled. Asexual morph: Conidiomata gyrostroma-like, pycnidial, occurring on the surface of stroma, semiglobose or pulvinate, multi-loculate, short hairs present on the surface. Conidiogenous cells phyalidic. Phyalides subulate or narrowly lageniform. Conidia aseptate, cylindrical or allantoid, hyaline, smooth-walled.
Notes: Stromatonectriaceae formed a monophyletic clade sister to Tilachlidiaceae with moderate statistical support (82% MLBT; Perera RH et al. 2023). Centrum characteristics, asci and ascospores of Stromatonectria are typical of Bionectriaceae and Nectriaceae. KOH negative stromata and ascomata of Stromatonectria resemble Bionectriaceae. However, Stromatonectria is characterized by producing gyrostroma-like, pycnidial conidiomata, which is not a characteristic of Bionectriaceae taxa (Jaklitsch and Voglmayr 2011). Hence, we introduce the new family Stromatonectriaceae based on multi-gene analysis and the morphological uniqueness of Stromatonectria.
Type genus: Stromatonectria Jaklitsch & Voglmayr.
Other accepted species: Species Fungorum – search Stromatonectriaceae.
References
Entry by
Perera RH, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou 550006, P. R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand.
Published online 11 September 2026.