Pleurotus ostreatus
(Jacq.) P. Kumm.
KW [Darwin] 54155. Place of collection: Ukraine; Kirovohrad oblast; Novhorodkivsk district; Kutsivka village; Kutsivs’ka dacha (N48°19' E32°47'). Date of collection: 6 October 1949. Associated organism: Juglans regia (wood). Collector: Balkovs’kiĭ, B.Ye.. Identifier: Zerova, M.Ya..