Erysiphe polygoni
DC.
KW [Darwin] 11542. Place of collection: Ukraine; Republic of Crimea; Yalta District; Nikita Botanic Garden (N44°30' E34°14'). Date of collection: 8 July 1976. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..