Erysiphe polygoni
DC.
KW [Darwin] 51559. Place of collection: Tadjikistan; Kulyabs’ka oblast; Lenīnhrads’kiĭ district. Date of collection: June 1980. Associated organism: Polygonum heterophyllum (leaf). Collector: Mel’nik, V.A.. Identifier: Mel’nik, V.A..