M.A. Libert [1-400]
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USDA United States National Fungus Collections
Catalog #: BPI 605059
s.n.
Sphaerotheca humuli (DC.) Burrill
Unknown
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USDA United States National Fungus Collections
Catalog #: BPI 605099
s.n.
Sphaerotheca humuli (DC.) Burrill
Unknown
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