Anonymous, Krypt. Exs. [ 1- 100] ; Beck & Zahlbruckner, Krypt. Exs. [101 - 400]
G. Beck and A. Zahlbruckner [1-400, plus extras]

University of Illinois Herbarium
Catalog #: ILL00090068
s.n.
Peronospora trifoliorum de Bary

USDA United States National Fungus Collections
Catalog #: BPI 1040712
s.n.
Peronospora trifoliorum de Bary