Ellis, N. Amer. Fungi
J.B. Ellis [1 - 1500, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 957646
s.n.
Peronospora nivea de Bary

USDA United States National Fungus Collections
Catalog #: BPI 187859
Farlow s.n.
Plasmopara geranii (Peck) Berl. & De Toni
United States, Massachusetts, Newton

University of Illinois Herbarium
Catalog #: ILL00097342
Farlow s.n.
Peronospora nivea var. geranii Farlow
United States, Massachusetts, Middlesex, Newton; Newton

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00062189
Farlow s.n.
Peronospora nivea var. Geranii Farlow
United States, Massachusetts, Newton;

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00062196
Farlow s.n.
Peronospora nivea var. Geranii Farlow
United States, Massachusetts, Newton;

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0086996
Farlow s.n.
Peronospora nivea var. geranii Farlow
United States, Massachusetts, Middlesex, Newton

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0253409
Farlow s.n.
Peronospora nivea geranii
United States, Massachusetts, Newton;

Academy of Natural Sciences of Drexel University
Catalog #: PH00314315
Farlow #s.n.
Plasmopara geranii (Peck) Berl. & De Toni
United States, Massachusetts, Middlesex, Newton

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000227797
W. G. Farlow #218
Rhysotheca geranii (Peck) G.W. Wilson
USA, Massachusetts, Middlesex, Newton

Academy of Natural Sciences of Drexel University
Catalog #: PH00300630
W. G. Farlow #218
Plasmopara nivea (Unger) J. Schröt.
United States, Massachusetts, Middlesex, Newton