Fungalpedia – Note 3142, Stromatonectria

 

Stromatonectria Jaklitsch & Voglmayr, Mycologia 103(2): 435 (2011).

Citation when using this data: Perera RH et al. 2023 – Fungalpedia.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Stromatonectriaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi.

Saprobic, weak 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 (adapted from Jaklitsch and Voglmayr 2011).

Known distribution: Austria (Jaklitsch and Voglmayr 2011), China (Zhou et al. 2018), Ukraine (Prylutskyi et al. 2017; Khudych 2021)

Notes: Jaklitsch and Voglmayr (2011) designated the monotypic genus Stromatonectria based on Myrmaeciella caraganae. Stromatonectria has KOH-negative stromata and ascomata, which is typical of Bionectriaceae, and hypocrea-like stroma and nectria-like centrum (Jaklitsch and Voglmayr 2011). Jaklitsch and Voglmayr (2011) accepted Stromatonectria in Bionectriaceae based on LSU phylogeny. Combined gene analysis revealed that Stromatonectria is not related to Bionectriaceae and distinct (Perera RH et al. 2023).

Type species: Stromatonectria caraganae (Höhn.) Jaklitsch & Voglmayr, Mycologia 103(2): 435 (2011).

Other accepted species: Species Fungorum – search Stromatonectria.

 

References

Jaklitsch WM, Voglmayr H 2011 — Stromatonectria gen. nov. and notes on Myrmaeciella. Mycologia 103:431–440.

Khudych AS 2021 — The first finding of rare fungus Stromatonectria caraganae (Höhn.) Jaklitsch & Voglmayr from the territory of National Nature Park “Dvorichanskyi” (Ukraine) and the analysis of its current distribution. Proceedings of the IX International Scientific Conference “Actual problems of environmental research“ (May 25–27, 2021, Sumy):132–134.

Perera, R.H., Hyde, K.D., Jones, E.B.G. et al. 2023 — Profile of Bionectriaceae, Calcarisporiaceae, Hypocreaceae, Nectriaceae, Tilachlidiaceae, Ijuhyaceae fam. nov., Stromatonectriaceae fam. nov. and Xanthonectriaceae fam. nov. Fungal Diversity 118, 95–271.

Prylutskyi OV, Akulov OY, Leontyev DV et al. 2017 — Fungi and fungus-like organisms of Homilsha forests National Park, Ukraine. Mycotaxon 132:1–56.

Zhou Y, Diao C, Jia H et al. 2018 — Isolation and identification of the pathogen of Caragana arborescens (Amm.) Lam. branch blight. J For Eng 34:7–19.

 

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 17 September 2026

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