Erysiphe polygoni DC.

KW [Darwin] 13539. Place of collection: Ukraine; Poltava Oblast; Kobeliaky District; island Vishnyaki on Dnīprī between villages Svītlohīrs’ke and Orlik; north-west part of of island (N48°51' E34°06'). Date of collection: 12 August 1994. Associated organism: Polygonum patulum (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..