Petrak, Crypt. Exs.F. Petrak [3201- 4700]
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USDA United States National Fungus Collections
Catalog #: BPI 1042344
s.n.
Erysiphe horridula (Wallr.) Rabenh.
Germany
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USDA United States National Fungus Collections
Catalog #: BPI 1042400
s.n.
Erysiphe horridula (Wallr.) Rabenh.
Germany
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