Puccinia calthae
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KW [Darwin] 2636. Place of collection: Russia; Leningradskaya oblast; Sankt Peterburg raion; Pushkin (N59°43' E30°25'). Date of collection: 19 July 1923. Associated organism: Caltha palustris (leaf). Collector: Jaczewski, A.A.. Identifier: Jaczewski, A.A..