Microsphaera divaricata
(Wallr.) Lév.
KW [Darwin] 51247. Place of collection: Russia; Leningrad Oblast; Sankt Peterburg Raion; St Petersburg (N59° E30°). Date of collection: 1906. Associated organism: Frangula alnus (leaf). Collector: Anon. [nerozbīrlivo]. Identifier: Heluta, V.P..