F.K.A.E.J. de Thümen [1-2300, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 1034864
s.n.
Erysiphella aggregata Peck

University of Illinois Herbarium
Catalog #: ILL00076393
C. H. Peck s.n.
Erysiphella aggregata Peck
USA, New York, Albany; Albany

USDA United States National Fungus Collections
Catalog #: BPI 559124
Peck C. H. s.n.
Erysiphe aggregata (Peck) Farl.
United States, New York, Albany

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00040520
ThÙmen #s.n.
Erysiphella aggregata Peck.
United States, New York, Albany