C. Roumeguere [1-7400]
USDA United States National Fungus Collections
s.n.
Oidium erysiphoides Fr.
France
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Cornell University Plant Pathology Herbarium
Catalog #: Roum.,F.Gallici-0759
Dale Pond s.n.
Oidium
France
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University of Illinois Herbarium
Desmazières s.n.
Oidium erysyphoides
France, Lille (Nord),
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