Erysiphe polygoni
DC.
KW [Darwin] 11535. Place of collection: Ukraine; Republic of Crimea; Lenino District; Ostanīne village (N45°19' E35°54'). Date of collection: 24 June 1985. Associated organism: Polygonum aviculare (leaf). Collector: Andrianova, T.V.. Identifier: Heluta, V.P..