J.T.C. Vestergren [1-1800, plus extras]

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0075404
s.n.
Peronospora radii de Bary

USDA United States National Fungus Collections
Catalog #: BPI 1039632
s.n.
Peronospora radii de Bary

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00062315
N. Sylven s.n. 00 August 1908
Peronospora radii de Bary
Sweden

USDA United States National Fungus Collections
Catalog #: BPI 790601
Sylven, N. s.n. 00 August 1908
Peronospora radii de Bary
Sweden, Norrbotten, Rokliden