Fungalpedia – Note 2057, Biatriosporaceae
Biatriosporaceae. K.D. Hyde.
Citation when using this data: Hongsanan S et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank
Classification: Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on decaying submerged intertidal mangrove wood. Sexual morph: Ascomata lying horizontal, immersed in substratum, subglobose to pyriform, solitary or gregarious, black, ostiolate. Peridium thin, composed of brown pseudoparenchymatous cells. Hamathecium comprising dense, thin, anastomosing, branching, trabeculate, pseudoparaphyses, embedded in a gelatinous matrix. Asci 8-spored, bitunicate, fissitunicate, cylindrical, long pedicellate. Ascospores overlapping 1-seriate, fusiform, dark brown, with hyaline rounded ends, 1–4-septate toward each end, aseptate in the centre, not constricted at the septa in the centre part, smooth-walled, releasing mucilage from the ends. Asexual morph: Pycnidia solitary or rarely confluent, on upper surface or submerged in agar, globose to subglobose or pyriform, with dark brown, septate mycelial outgrowths, papillate, ostiolate, olivaceous to olivaceous-black, the wall with pseudoparenchymatous cells. Conidiogenous cells hyaline, phialidic, discrete. Conidia ellipsoidal, subhyaline, brown in mass, aseptate.
Notes – The monogeneric family Biatriosporaceae was established by Hyde et al. (2013) to accommodate a marine genus Biatriospora typified by B. marina (Hyde & Borse 1986) based on morphological and molecular data (Hyde et al. 2013).
Type genus: Biatriospora K.D. Hyde & Borse.
Other accepted species: Species Fungorum – search Biatriosporaceae.
References
Barr ME. 1986 – On Julella, Delacourea, and Decaisnella, three dictyosporous genera described by JH Fabre. Sydowia 38, 11–19.
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 23 March 2026