Sphaerotheca fusca
(Fr.) S. Blumer
KW [Darwin] 11888. Place of collection: Russia; Leningrad Oblast; Sankt Peterburg Raion; St Petersburg (N59° E30°). Date of collection: 15 August 1914. Associated organism: Senecio paludosus (leaf, stem). Collector: Naumov, N.A.. Identifier: Heluta, V.P..