Basionym: Agaricus terrigenus Fr., Öfvers. K. VetenskAkad. Förh. 8: 46 (1851) [MB#372276] Obligate synonyms: - Inocybe terrigena (Fr.) Kuyper, Persoonia 12 (4): 482 (1985) [MB#104391] - Pholiota terrigena (Fr.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 292 (1879) [MB#233497] - Togaria terrigena (Fr.) W.G. Sm., Synopsis of the British Basidiomycetes: A descriptive catalogue of the drawings and speciments in the department of Botany British Museum: 122 (1908) [MB#455976] - Inocybe terrigena (Fr.) Kühner, Flore Analytique des Champignons Supérieurs: 218 (1953) [MB#532404] - Mallocybe terrigena (Fr.) Vizzini, Della Magg., Tolaini & Ercole, Mycological Progress 12 (2): 376 (2013) [MB#568731] - Mallocybe terrigena var. terrigena (2019) [MB#846200]