G.W. Wilson and F.J. Seaver [1-100]
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USDA United States National Fungus Collections
Catalog #: BPI 859636
F. J. S. s.n.
Microsphaera alni (DC.) G. Winter
United States, New York, New York City
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USDA United States National Fungus Collections
Catalog #: BPI 557119
Seaver Fred J. s.n.
Microsphaera alni (DC.) G. Winter
United States, New York, New York
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USDA United States National Fungus Collections
Catalog #: BPI 1045447
Seaver Fred J. s.n.
Microsphaera alni (DC.) G. Winter
United States, New York, New York
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USDA United States National Fungus Collections
Catalog #: BPI 1045448
Seaver Fred J. s.n.
Microsphaera alni (DC.) G. Winter
United States, New York, New York
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