C. Roumeguere [1-7400]
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Cornell University Plant Pathology Herbarium
Catalog #: Roum.,F.Gallici-1163
s.n.
Erysiphe graminis f. avenae
France
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USDA United States National Fungus Collections
Catalog #: BPI 1014074
s.n.
Erysiphe graminis DC.
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USDA United States National Fungus Collections
Catalog #: BPI 1007827
s.n.
Erysiphe graminis var. avenae
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University of Illinois Herbarium
Catalog #: ILL00102188
J. Therry s.n. 00 August 1879
Erysiphe graminis DC.
France, (Ardèche), Aubenas,
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