Fungalpedia – Note 2072, Hypsostromataceae
Hypsostromataceae. Huhndorf.
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 wood. Sexual morph: Ascomata clustered on a tormentose subiculum, superficial, obpyriform, stalked, pale brown, surface roughened or hairy, with a papillate ostiole. Peridium coriaceous, three-layered of textura angularis cells. Hamathecium comprising numerous, narrow, anastomosing, trabeculate pseudoparaphyses, embedded in a gelatinous matrix. Asci 4–8-spored, bitunicate, numerous, elongate clavate long pedicellate, basal on a columnar structure, apically rounded with an ocular chamber with fluoresces in Calcifluor. Ascospores 2-seriate, oblong to narrowly fusiform, pale brown, 3-septate, disarticulating, smooth-walled, without sheath or appendages.Asexual morph: Recorded as pleurophomopsis-like. Pycnidia obpyriform to ampulliform, roughened tuberculate with white, crust-like exudate, ostiolate, with prominent, broad papilla. Conidiogenous cellsphialidic, cylindrical to elongate, hyaline, collarettes minute. Conidiaovoid, minute, hyaline, aseptate, and guttulate.
Notes – Hypsostromataceaewas introduced by Huhndorf (1994) to accommodate two genera, HypsostromaHuhndorfand Manglicola. Hypsostromataceaemembers are characterized in having large superficial ascomata with trabeculate pseudoparaphyses, cylindrical to clavate asci and septate, pale brown to brown ascospores (Huhndorf 1994, Hyde et al. 2013). Initially, Hypsostroma was described by Huhndorf (1992)for one species from the Dominican Republic (H.saxicolaHuhndorf) and one from Venezuela (H. caimitalense Huhndorf), but were not placed in a family. Later, Huhndorf (1994) referred both species and Manglicola samuelsii Huhndorfin Hypsostromataceae.
Suetrong et al. (2011a) introduced a new family, Manglicolaceae, to accommodate Manglicola guatemalensis in the Jahnulales, as it did not group in the Pleosporales. Manglicola samuelsii remains unresolved due to lack of molecular data to determine the phylogenetic placement. Therefore, Hypsostromataceaecomprises only Hypsostromaand further collections are needed for the expansion of the family.
Type genus: Hypsostroma Huhndorf
Other accepted species: Species Fungorum – search Hypsostromataceae.
References
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