Poelt & Scheuer, Reliqu. Petrak.Institut für Systematische Botanik der Universität [1-2859]
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Cornell University Plant Pathology Herbarium
Catalog #: Rel.Petrak.0443
s.n.
Erysiphe aggregata Farl.
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USDA United States National Fungus Collections
Catalog #: BPI 993445
s.n.
Erysiphe aggregata (Peck) Farl.
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