F.K.A.E.J. de Thümen [1-2300, plus extras]
USDA United States National Fungus Collections
s.n.
Erysiphella aggregata Peck
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University of Illinois Herbarium
C. H. Peck s.n.
Erysiphella aggregata Peck
USA, New York, Albany; Albany
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University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
C. H. Peck s.n.
Erysiphella aggregata Peck
United States, New York, Albany, Albany;
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Purdue University, Kriebel Herbarium
C. H. Peck s.n.
Erysiphella aggregata Peck
America, New York, Albany, Albany;
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USDA United States National Fungus Collections
Peck C. H. s.n.
Erysiphe aggregata (Peck) Farl.
United States, New York, Albany
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