Erysiphe polygoni
DC.
KW [Darwin] 12277. Place of collection: Ukraine; Donetsk Oblast; Pershotravneve settlement (N47°03' E37°19'). Date of collection: 12 July 1978. Associated organism: Polygonum propinquum (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..