A.B. Seymour and F.S. Earle [1-550, plus extras]

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00062062
L. M. Underwood s.n. 00 May 1884
Peronospora geranii Peck
United States, Indiana, Greencastle;

Academy of Natural Sciences of Drexel University
Catalog #: PH00314365
L. M. Underwood s.n. 00 May 1884
Plasmopara geranii (Peck) Berl. & De Toni
United States, Indiana, Greencastle;

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0214829
L. M. Underwood s.n. 00 May 1884
Peronospora geranii Peck
United States, Indiana, Greencastle;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000274552
L. M. Underwood #A3 00 May 1884
Peronospora geranii Peck
USA, Indiana, Putnam, Greencastle

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP29212
L.M. Underwood s.n. 00 May 1884
Peronospora geranii Peck
United States, Indiana, Putnam, Greencastle

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0097173
L.M. Underwood #s.n. 00 May 1884
Plasmopara geranii (Farl.) Berl. & DeT.
USA, Indiana, Greencastle;

University of Illinois Herbarium
Catalog #: ILL00096300
LM Underwood s.n. 00 May 1884
Peronospora gangliformis (Berkeley) de Bary
United States, Indiana, Putnam, Greencastle; Greencastle

USDA United States National Fungus Collections
Catalog #: BPI 187841
Underwood, L. M. s.n. 00 May 1884
Plasmopara geranii (Peck) Berl. & De Toni
United States, Indiana, Greencastle

USDA United States National Fungus Collections
Catalog #: BPI 865084
Underwood, L. M. s.n. 00 May 1884
Peronospora geranii Peck
United States, Indiana, Greencastle

University of North Carolina at Chapel Hill Herbarium: Fungi
Catalog #: NCU-F-0018748
Underwood, L. M. #s.n. 00 May 1884
Peronospora geranii Peck
United States, Indiana, Putnam, Greencastle Ind. [Indiana]