F.K.A.E.J. de Thümen [1-2300, plus extras]
University of Illinois Herbarium
s.n.
Phragmidium obtusum (F. Strauss) G. Winter
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USDA United States National Fungus Collections
s.n.
Phragmidium obtusum Link
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University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Ch. H. Peck s.n. 00 October 1877
Phragmidium obtusum (F. Strauss) G. Winter
United States, New York, Albany;
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