Fungalpedia – Note 2284, Hemimyriangium
Hemimyriangium J. Reid & Piroz
Citation when using this data: Hongsanan S et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Clavicipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
This monotypic genus was placed in Myriangiaceae by Reid and Pirozynski (1966b). Lumbsch & Huhndorf (2007) placed Hemimyriangium in Elsinoaceae and this was followed in Hyde et al. (2013). However, this taxon appears to be more similar to Myriangium in having superficial ascostromata with a single ascus in each locule and in the arrangement of locules in the outer layer of the ascostromata as well as due to its saprobic nature, but differs by ascospores without longitudinal septa. Therefore, Jayawardena et al. (2014) excluded this genus from Elsinoaceae and Dissanayake et al. (2014) treated it in Myriangiaceae. Fresh collections and molecular analyses are needed to clarify the familial position of this genus.
Type species: Hemimyriangium betulae J. Reid & Piroz., Can. J. Bot. 44: 651 (1966).
Other accepted species: Species Fungorum – search Hemimyriangium.
References
Lumbsch HT, Huhndorf SM. 2007 – Outline of ascomycota–2007. Myconet 13, 1–58.
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 10 April 2026