Anonymous, Calif. FungiHerbarium of the University of California. [1- ? 1425]
Cornell University Plant Pathology Herbarium
Catalog #: CaliforniaF.01026
s.n.
Erysiphe R. Hedw. ex DC.
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USDA United States National Fungus Collections
H.E. Parks #s.n. 00 August 1956
Erysiphe cichoracearum DC.
United States, Oregon, Deschutes, Bend
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