C. Roumeguere [1-7400]
Cornell University Plant Pathology Herbarium
Catalog #: Roum.,F.Gallici-0881
s.n.
Oidium crataegi Grognot
France
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University of Illinois Herbarium
s.n. 00 June 1880
Oidium crataegi Grognot
France, (Pyrenées Orientales), Perpignan,
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USDA United States National Fungus Collections
s.n.
Oidium crataegi Grognot
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