F.K.A.E.J. de Thümen [1-750, plus extras]
University of Illinois Herbarium
s.n.
Microsphaeria friesii
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University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
H. W. Ravenel s.n.
Microsphaera friesii Lév.
United States, South Carolina, Aiken, Aiken;
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