Erysiphe polygoni
DC.
KW [Darwin] 51718. Place of collection: Ukraine; Kyiv Oblast; Borodianka District; Piskivka settlement (N50°41' E29°35'). Date of collection: 27 September 1995. Associated organism: Rumex acetosella (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..