Agaricus bisporus
(J.E. Lange) Imbach
KW [Darwin] 35599. Place of collection: Ukraine; Luhansk Oblast; Milove District; Velykots’k village (near) (N49°20' E40°03'). Date of collection: 4 June 1955. Associated organism: Animalia indet. (dung). Collector: Bauman, M.P..