Basionym:
Agaricus haematospermus Bull., Herbier de la France 13: t. 595:1 (1793) [MB#171338]
Obligate synonyms:
- Pratella haematosperma (Bull.) Gillet, Les Hyménomycètes ou Description de tous les Champignons qui Croissent en France: 566 (1878) [MB#114469]
- Psalliota haematosperma (Bull.) S. Lundell & Nannf., Fungi Exsiccati Suecici: no. 341 (1935) [MB#456935]
- Lepiota haematosperma (Bull.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 7 (1886) [MB#122594]
- Fungus haematospermus (Bull.) Kuntze, Revisio generum plantarum 3 (3): 480 (1898) [MB#526401]
Taxonomic synonyms:
- Hypholoma vinosum Kauffman, The Agaricaceae of Michigan: 261 (1918) [MB#101498]
- Agaricus hookeri Klotzsch, Engler's Flora: 97 (1836) [MB#155816]
- Agaricus haematophyllus Berk., Magazine of Zoology and Botany 1: 507 (1837) [MB#171721]
- Agaricus echinatus Roth, Catalecta botanica quibus plantae novae et minus cognitae describuntur atque illustrantur 2: 255, tab. 9, fig. 1 (1800) [MB#200123]
- Melanophyllum echinatum (Roth) Singer, Lilloa 22: 436 (1951) [MB#300364]
- Lepiota echinata (Roth) Quél., Bulletin de la Société Botanique de France 26: 45 (1880) [MB#455751]
- Psalliota echinata (Roth) P. Kumm., Der Führer in die Pilzkunde: 73 (1871) [MB#479473]
- Pratella echinata (Roth) Gillet, Les Hyménomycètes ou Description de tous les Champignons qui Croissent en France: 565 (1878) [MB#114461]
- Inocybe echinata (Roth) Sacc., Sylloge Fungorum 5: 773 (1887) [MB#234814]
- Cystoderma echinatum (Roth) Singer, Annales Mycologici 34: 338 (1936) [MB#455752]
- Cystolepiota echinata (Roth) Singer (?) [MB#477237]
- Naucoria echinata (Roth) J. Schröt., Kryptogamen-Flora von Schlesien 3-1(5): 607 (1889) [MB#479472]
- Psathyra echinata (Roth) Overh., Mycologia 25 (5): 428 (1933) [MB#479474]
- Melanophyllum canali Velen., Ceske Houby 3: 570 (1921) [MB#259552]
- Agaricus olivaesporus Ellis & Everh., Journal of Mycology 5 (1): 27 (1889) [MB#192918]
- Chlorosperma olivaespora (Ellis & Everh.) Murrill, Mycologia 14 (2): 97 (1922) [MB#155753]
- Pilosace olivaespora (Ellis & Everh.) Morgan, J. Mycol.: 225 (1907) [MB#477360]
- Hypholoma olivaesporum (Ellis & Everh.) Sacc., Sylloge Fungorum 9: 139 (1891) [MB#166139]
- Agaricus fumosopurpureus Lasch, Linnaea 3: 420 (1828) [MB#218235]
- Cystoderma fumosopurpureum (Lasch) Fayod (1889) [MB#477235]
- Agaricus lignyodes Berk. & Broome, Botanical Journal of the Linnean Society 11: 506 (1871) [MB#477262]
- Lepiota lignyodes (Berk. & Broome) Sacc., Sylloge Fungorum 4: 62 (1887) [MB#214166]
- Agaricus rhodochrous Berk. & Broome, Botanical Journal of the Linnean Society 11: 551 (1871) [MB#234474]
- Psalliota rhodochroa (Berk. & Broome) Rick (1961) [MB#337645]
- Fungus rhodochrous (Berk. & Broome) Kuntze: 480 (1898) [MB#526450]
- Agaricus illotus Berk. & Broome, Botanical Journal of the Linnean Society 11: 552 (1871) [MB#479475]
- Stropharia illota (Berk. & Broome) Sacc., Sylloge Fungorum 5: 1019 (1887) [MB#220811]
- Fungus illotus (Berk. & Broome) Kuntze: 480 (1898) [MB#526406]
- Agaricus eximius Peck, Rep. (Annual) New York State Mus. Nat. Hist. 24: 70 (1872) [MB#479476]
- Pilosace eximia (Peck) Sacc. (1887) [MB#224892]
- Pilosace peckii House, Bulletin of the New York State Museum 205-206: 39 (1919) [MB#479477]
- Pilosace eximius (Peck) Sacc., Syll. Fung. 5: 1012 (1887) [MB#663275]
- Agaricus aimatospermus Bull., Histoire des champignons de la France, 2 (2) pl. 541-676: 638, t. 595:1 (1812) [MB#490089]
- Agaricus aimatosporus Bull., Herbier de la France 13: t. 595:1 (1793) [MB#494536]
- Agaricus illotus var. thysanophorus Berk. & Broome, Botanical Journal of the Linnean Society 11: 552 (1871) [MB#329561]
- Stropharia illota var. thysanophora (Berk. & Broome) Sacc., Sylloge Fungorum 5: 1019 (1887) [MB#137937]