Basionym: Agaricus fastibilis var. mesophaeus Pers., Mycologia Europaea 3: 173 (1828) [MB#138102] Obligate synonyms: - Agaricus mesophaeus (Pers.) Fr., Epicrisis Systematis Mycologici: 179 (1838) [MB#446140] - Inocybe mesophaea (Pers.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 470 (1879) [MB#495008] - Inocybe versipellis var. mesophaeus (Pers.) S. Petersen, Danske Agaricaceer 2: 337 (1911) [MB#500404] - Agaricus mesophaeus var. mesophaeus (?) [MB#478511] - Hylophila mesophaea (Pers.) Quélet, Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 99 (1886) [MB#802716] - Hylophila mesophaea var. mesophaea (Pers.) Quél. (1886) [MB#569780] Taxonomic synonyms: - Hebeloma bruchetii Bon, Bulletin Trimestriel de la Fédération Mycologique Dauphiné-Savoie 25 (97): 23 (1986) [MB#103418] - Hebelomatis repandum (Bruchet) Locq., Flore mycologique 3: 146 (1979) [MB#315016] - Hebeloma repandum Bruchet, Contribution a l'Etude de Quelques Aspergilles: 50 (1970) [MB#314975] - Hebeloma mesophaeum var. crassipes Vesterh., Nordic Journal of Botany 9 (3): 298 (1989) [MB#126309] - Hebeloma maritinum A.H. Sm., V.S. Evenson & Mitchel, Veiled species of Hebeloma in the western United States: 99 (1983) [MB#115215] - Hebeloma vinaceogriseum A.H. Sm., V.S. Evenson & Mitchel, Veiled species of Hebeloma in the western United States: 28 (1983) [MB#115261] - Hebeloma mesophaeum var. cremeovelatum Bon & Quadr., Documents Mycologiques 14 (56): 31 (1985) [MB#116656] - Hebeloma mesophaeum var. ochroniveum Quadr., Documents Mycologiques 14 (56): 31 (1985) [MB#116657] - Hebeloma mesophaeum var. subobscurum A.H. Sm., V.S. Evenson & Mitchel, Veiled species of Hebeloma in the western United States: 74 (1983) [MB#116907] - Hebeloma mesophaeum var. velovinaceum A.H. Sm., V.S. Evenson & Mitchel, Veiled species of Hebeloma in the western United States: 73 (1983) [MB#116909] - Hebeloma mesophaeum var. imitatum A.H. Sm., V.S. Evenson & Mitchel, Veiled species of Hebeloma in the western United States: 75 (1983) [MB#116910] - Hebeloma mesophaeum var. longipes A.H. Sm., V.S. Evenson & Mitchel, Veiled species of Hebeloma in the western United States: 170 (1983) [MB#116911] - Hebeloma mesophaeum f. cremeovelatum Bon & Haluwyn, Documents Mycologiques 13 (50): 37 (1983) [MB#117880] - Agaricus strophosus Fr., Epicrisis Systematis Mycologici: 161 (1838) [MB#372266] - Hebeloma strophosum (Fr.) Sacc., Sylloge Fungorum 5: 808 (1887) [MB#171435] - Roumeguerites strophosus (Fr.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 452 (1879) [MB#177306] - Hebeloma mesophaeum var. strophosum (Fr.) Quadr., Documents Mycologiques 14 (56): 31 (1985) [MB#116658] - Roumeguerites strophosa (Fr.) P. Karst. (1879) [MB#280364] - Hylophila versipellis var. strophosa (Fr.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 99 (1886) [MB#802715] - Agaricus subcollariatus Berk. & Broome, Annals and Magazine of Natural History 9: 178 (1882) [MB#457235] - Hebeloma subcollariatum (Berk. & Broome) Sacc., Sylloge Fungorum 5: 798 (1887) [MB#171773] - Hebeloma caespitosum Velen., Ceske Houby 2: 389 (1920) [MB#259304] - Hebeloma cinereum Velen., Ceske Houby 2: 396 (1920) [MB#260837] - Hebeloma mammillatum Velen., Novitates mycologicae: 118 (1939) [MB#270458] - Hebeloma mammilatum Velen. (1939) [MB#264822] - Inocybe velenovskyi Hruby, Hedwigia 70: 281 (1930) [MB#281430] - Inocybe velenovskyi f. incrassata Hruby, Hedwigia 70: 281 (1930) [MB#281433] - Hebeloma lateritium Murrill, North American Flora 10 (3): 224 (1917) [MB#147830] - Hebeloma mesophaeum var. lateritium (Murrill) A.H. Sm., V.S. Evenson & Mitchel, Veiled species of Hebeloma in the western United States: 72 (1983) [MB#116906] - Hebeloma gregarium Peck, Annual Report on the New York State Museum of Natural History 49: 32 (1897) [MB#248075] - Naucoria petrakii Hruby (?) [MB#472227] - Hebeloma petrakii Hruby ex Singer, Lilloa 22: 538 (1951) [MB#298199] - Agaricus mesophaeus var. minor Cooke, Illustrations of British Fungi (Hymenomycetes): 453 (412) (1886) [MB#484242] - Hebeloma mesophaeum var. minus (Cooke) Rea, British Basidiomycetae: A handbook to the larger British fungi: 256 (1922) [MB#463419]