Fungalpedia – Note 2246, Ostreichnion
Ostreichnion Duby
Citation when using this data: Hongsanan S et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Hysteriaceae, Hysteriales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Ostreichnion, previously placed in the Mytilinidiaceae, has been transferred to Hysteriaceae (Boehm et al. 2009a). This was based on sequence data derived from two of the three species, O. curtisii (CBS 198.34) and O. sassafras (CBS 322.34), deposited by Lohman (1934). The genus is characterized by dictyospores or large didymospores ascospores borne in choncate mytilinidioid, fragile fruitbodies, with thin-walled slerenchymatous cells.
Type species: Ostreichnion americanum Duby, Mém. Soc. Phys. Hist. nat. Genève 16(1): 34 (1862).
Other accepted species: Species Fungorum – search Ostreichnion.
References
Lohman ML. 1934 – A cultural and taxonomic study of Hysterium hyalinum. Annual report of the Michigan Academy of Science 19, 133–140.
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 3 April 2026