Basionym:
Agaricus semiovatus Sowerby, Coloured Figures of English Fungi 2: 56, t. 131 (1799) [MB#181339]
Obligate synonyms:
- Anellaria semiovata (Sowerby) A. Pearson & Dennis, Transactions of the British Mycological Society 31 (3-4): 185 (1948) [MB#284166]
- Panaeolus semiovatus var. semiovatus (?) [MB#439552]
- Coprinus semiovatus (Sowerby) Gray, A natural arrangement of British plants 1: 632 (1821) [MB#492181]
- Panaeolus semiovatus f. semiovatus (?) [MB#426194]
Taxonomic synonyms:
- Agaricus separatus L., Species Plantarum: 1175 (1753) [MB#184188]
- Panaeolus separatus (L.) Quél., Bulletin de la Société Botanique de France 23: 328, XLIV (1877) [MB#457042]
- Anellaria separata (L.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 517 (1879) [MB#203263]
- Stropharia separata (L.) J.E. Lange, Dansk botanisk Arkiv 4 (4): 34 (1923) [MB#356629]
- Coprinarius separatus (L.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 118 (1886) [MB#504659]
- Pholiota separata (L.) P. Kumm., Der Führer in die Pilzkunde: 84 (1871) [MB#507959]
- Anellaria separata var. separata (?) [MB#419757]
- Stropharia separata var. separata (?) [MB#425427]
- Amanita separata (L.) Delarbre, Flore d’Auvergne 2: 868 (1836) [MB#636410]
- Agaricus ciliaris Bolton, An History of Fungusses, Growing about Halifax 2: 53, t. 53 (1788) [MB#226477]
- Coprinus ciliaris (Bolton) Gray, A natural arrangement of British plants 1: 633 (1821) [MB#492176]
- Agaricus egregius Massee, Grevillea 13 (68): 91 (1885) [MB#456834]
- Panaeolus egregius (Massee) Sacc., Syll. Fung. 5: 1119 (1887) [MB#169669]
- Panaeolus semiovatus f. exannulatus A. Pearson, Trans. Brit. Mycol. Soc. 33 (3-4): 309 (1950) [MB#347357]
- Agaricus nutans Fr., Systema Mycologicum 1: 302 (1821) [MB#184211]
- Panaeolus phalaenarum var. nutans (Fr.) Sacc. (1887) [MB#150945]
- Panaeolus phalenarum var. nutans (Fr.) Sacc., Syll. Fung. 5: 1119 (1887) [MB#565163]
- Anellaria separata var. major Sacc., Syll. Fung. 5: 1126 (1887) [MB#136808]
- Anellaria separata var. minor Sacc., Syll. Fung. 5: 1126 (1887) [MB#136797]
- Stropharia separata var. minor J.E. Lange, Dansk Bot. Ark. 4 (4): 34 (1923) [MB#277882]
- Panaeolus semiovatus var. minor (J.E. Lange) Bon, Doc. Mycol. 29 (114): 22 (1999) [MB#460945]
- Agaricus phalenarum Fr., Epicrisis Systematis Mycologici: 235 (1838) [MB#565160]
- Panaeolus phalaenarum (Fr.) Quél. (1872) [MB#324287]
- Panaeolus semiovatus var. phalaenarum (Fr.) Ew. Gerhardt (1996) [MB#437162]
- Anellaria phalaenarum (Fr.) M.M. Moser (1967) [MB#326195]
- Panaeolus phalenarum (Fr.) Quél., Mém. Soc. Émul. Montbéliard Ser. 2, 5: 151 (1872) [MB#508570]
- Coprinarius phalaenarum (Fr.) Quél. (1886) [MB#504654]
- Chalymmota phalenarum (Fr.) P. Karst., Bidrag Kännedom Finlands Natur Folk 32: 518 (1879) [MB#565153]
- Coprinarius phalenarum (Fr.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 118 (1886) [MB#565162]
- Anellaria phalenarum (Fr.) M.M. Moser, Kleine Krypt.-Fl. 2b (2): 225 (1967) [MB#565161]
- Strophaneolus phalenarum (Fr.) Bon, Bull. Soc. Mycol. France 86 (1): 118 (1970) [MB#626126]
- Panaeolus semiovatus var. phalenarum (Fr.) Ew. Gerhardt, Biblioth. Bot. 147: 24 (1996) [MB#565165]