Melampsora allii-populina
Kleb.
KW [Darwin] 1996. Place of collection: Ukraine; Chernihiv Oblast; Kozelets District; Oster town (N50°57' E30°53'). Date of collection: 21 August 1908. Associated organism: Populus nigra (leaf). Collector: Nevodovsky, G.S.. Identifier: Nevodovsky, G.S..