Agaricus separatus Linnaeus, Species Plantarum 2: 1175. 1753.

"Habitat in Stercoratis." RCN: 8439.

Neotype (Gerhardt in Biblioth. Bot. 147: 23. 1996): Finland. Lappfjord, Ostrobottnia Australis, 23 Jun 1859. Karsten 2306 (H).

Current name: Panaeolus semiovatus (Sowerby: Fr.) S. Lundell & Nannf. ( Coprinaceae).