Erysiphe aquilegiae
DC.
KW [Darwin] 11902. Place of collection: Russia; Leningradskaya oblast; Sankt Peterburg raion; Petrodvorets (N59°53' E29°54'). Date of collection: 2 August 1927. Associated organism: Caltha palustris (leaf). Collector: Anon. [phytopathology students]. Identifier: Heluta, V.P..