Cryptogamic Herbarium #2876
Department of Botany and Plant Pathology, Oklahoma Agriculture and Mech. College
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Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0084545
H.S. Jackson #2876 07 August 1930
Erysiphe sordida L. Junell
Canada, Ontario, Holland River Bridge, Yonge St. Highway.
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