Hysterangium is a genus of truffle-like fungi in the family Hysterangiaceae. The genus is widespread, especially in temperate regions, and contains more than 60 species. Hysterangium was circumscribed by Italian mycologist Carlo Vittadini in 1831. Species , Index Fungorum lists 64 valid species of Hysterangium: Hysterangium affine Hysterangium aggregatum Hysterangium album Hysterangium areolatum Hysterangium aureum Hysterangium calcareum R. Hesse 1891 Hysterangium cerebrinum Hysterangium cinereum Hysterangium clathroides Hysterangium coriaceum Hysterangium crassirhachis Hysterangium crassum Hysterangium duriaeanum Hysterangium epiroticum Hysterangium eucalyptorum Hysterangium fischeri Hysterangium fragile Hysterangium fuscum Hysterangium gardneri Hysterangium graveolens Hysterangium hallingii Hysterangium harknessii Hysterangium hessei Soehner ex Svrček 1958 Hysterangium hokkaidoense Hysterangium incarceratum Hysterangium incognitum Hysterangium inflatum Hysterangium knappii Hysterangium latiappendiculatum Hysterangium latisporum Hysterangium lobatum Hysterangium luteum Hysterangium maidenii Hysterangium membranaceum Hysterangium moselei Hysterangium neglectum Hysterangium neocaledonicum Hysterangium neotunicatum Hysterangium nephriticum Berk. 1844 Hysterangium nigrum Hysterangium obtusum Hysterangium occidentale Hysterangium petriei Hysterangium pompholyx Tul. & C. Tul. 1843 Hysterangium pseudacaciae Hysterangium pseudostoloniferum Hysterangium pterosporum Hysterangium pumilum Hysterangium quercicola Hysterangium rickenii Hysterangium rubricatum Hysterangium rugisporum Hysterangium rupticutis Hysterangium salmonaceum Hysterangium separabile Zeller 1941 Hysterangium siculum Hysterangium simlense Hysterangium spegazzinii Hysterangium stoloniferum Tul. & C. Tul. 1851 Hysterangium strobilus Hysterangium subglobosum Hysterangium thwaitesii Hysterangium velatisporum Hysterangium youngii Another list can be found in Catalogue of Life, which also lists Hysterangium atratum Rodway 1920 , Hysterangium burburianum Rodway 1918, and others. A further species, Hysterangium bonobo, has been reported by Elliott et al. in September 2020. Gallery References Agaricomycetes genera Hysterangiales