Uredineen #2542
P. Sydow [1-2850, plus supplements]
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USDA United States National Fungus Collections
Catalog #: BPI 1032282
s.n.
Phragmidium potentillae (Pers.) P. Karst.
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USDA United States National Fungus Collections
Catalog #: BPI 128256
Dearness J. s.n. 16 May 1913
Frommea obtusa (F. Strauss) Arthur
Canada, Ontario, Byron near London
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Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0014833
J. Dearness s.n. 16 May 1913
Phragmidium potentillae-canadensis Dietel
Canada, Ontario, Middlesex, London;
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