H. Sydow and P. Sydow [1-3000]

Cornell University Plant Pathology Herbarium
Catalog #: Syd.,Myc.germ.2313
s.n.
Peronospora Corda
Germany

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0075452
s.n.
Peronospora trifolii-hybridi Gäum.

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00062373
A. Ludwig s.n. 24 June 1926
Peronospora trifolii-hybridi Gäumann
Germany, Wesfalen: bei Rudersdorf, Kreis Siegen

University of Michigan Herbarium
Catalog #: 336390
A. Ludwig #s. n. 24 June 1926
Peronospora trifolii-hybridi Gäumann
Germany, Westfalen: bei Rudersdorf, Kreis Siegen.

Academy of Natural Sciences of Drexel University
Catalog #: PH00314468
A. Ludwig #s.n. 24 June 1926
Peronospora trifoliorum de Bary
Germany, Wesfalen: bei Rudersdorf, Kreis Siegen

USDA United States National Fungus Collections
Catalog #: BPI 791145
Ludwig, A. s.n. 24 June 1926
Peronospora trifolii-hybridi Gäum.
Germany, Westfalen, Rudersdorf, Siegen Kreis

USDA United States National Fungus Collections
Catalog #: BPI 1027837
Ludwig, A. s.n. 24 June 1926
Peronospora trifolii-hybridi Gäum.
Germany, Westfalen, Rudersdorf, Siegen Kreis