Fungalpedia – Note 613, Brunneofissura
Brunneofissura Marasinghe, Hongsanan & K.D. Hyde
Citation when using this data: D. S. Marasinghe et al. 2023 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Brunneofissuraceae, Asterinales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Colonies appearing upper or lower surface of dead leaves. Sexual morph: Thyriothecia solitary to gregarious, superficial, X-, Y- or star-shaped, dark brown to pale brown, free dark brown hyphae and appressoria at the margin of thyriothecia, opening by pale brown linear fissures. Upper wall comprising dark brown to pale brown cells of textura prismatica, which are branched at the margin, radiating from the center to the outer rim. Hamathecium hyaline, filiform, trabeculated pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, oblong to clavate, with or without a pedicel, with or without an ocular chamber. Ascospores overlapping, 1–2 seriate, hyaline, ovoid to clavate, 1-septum. Asexual morph: Undetermined (Marasinghe et al. 2022b).
Notes: Brunneofissura is morphologically similar to Morenoina (Morenoinaceae) in having brown to black thyriothecia, opening by X- or Y-shaped or linear fissure, with an upper wall of linear, dark cells, which are branched at the margin, arranged from the center to the outer rim (Marasinghe et al. 2022b). Furthermore, the hyaline, oblong to cylindrical, 8-spored asci and ovoid to clavate, 1-septum, hyaline ascospores are similar to Morenoina. However, Brunneofissura is different in having pale brown linear fissures, with free dark brown hyphae, appressoria at the margin of thyriothecia and filiform trabeculate pseudoparaphyses, while Morenoina lacks these morphological characters (Marasinghe et al. 2022b).
Type species: Brunneofissura thailandica Marasinghe, Hongsanan & K.D. Hyde, Mycol. Progr. 21(1): 285 (2022).
Other accepted species: Species Fungorum – search Brunneofissura.
References
Entry by
Diana Sandamali Marasinghe, 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 29 August 2023