Department of Botany and Plant Pathology, Oklahoma Agriculture and Mech. College
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USDA United States National Fungus Collections
Catalog #: BPI 556697
Preston D. A. s.n. 13 October 1943
Microsphaera alni (DC.) G. Winter
United States, Oklahoma, Stillwater
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USDA United States National Fungus Collections
Catalog #: BPI 556701
Preston D. A. s.n. 13 October 1943
Microsphaera alni (DC.) G. Winter
United States, Oklahoma, Stillwater
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USDA United States National Fungus Collections
Catalog #: BPI 556703
Preston D. A. s.n. 13 October 1943
Microsphaera alni (DC.) G. Winter
United States, Oklahoma, Stillwater
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