G.W. Wilson and F.J. Seaver [1-100]
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USDA United States National Fungus Collections
Catalog #: BPI 564698
Seaver F. J.; Seaver Bernice s.n.
Erysiphe polygoni DC.
United States, New York, New York
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USDA United States National Fungus Collections
Catalog #: BPI 1045440
Seaver F. J.; Seaver Bernice s.n.
Erysiphe polygoni DC.
United States, New York, New York
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USDA United States National Fungus Collections
Catalog #: BPI 1045441
Seaver F. J.; Seaver Bernice s.n.
Erysiphe polygoni DC.
United States, New York, New York
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