C. Roumeguere [1-7400]
USDA United States National Fungus Collections
s.n.
Erysiphe horridula (Wallr.) Rabenh.
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USDA United States National Fungus Collections
s.n.
Erysiphe horridula (Wallr.) Rabenh.
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University of Illinois Herbarium
(Reliquae Westendorpii) s.n.
Erysiphe horridula forma symphiti
Belgique, Bruxelles,
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