Erysiphe knautiae
Duby
KW [Darwin] 11342. Place of collection: Ukraine; Kyiv Oblast; Kiev city; Central Botanic Garden (N50°25' E30°32'). Date of collection: 26 August 1976. Associated organism: Succisa pratensis (leaf, petiole, stem). Collector: Potayenko. Identifier: Heluta, V.P..