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

USDA United States National Fungus Collections
Catalog #: BPI 1020806
s.n.
Uromyces trifolii
United States

USDA United States National Fungus Collections
Catalog #: BPI 1020807
s.n.
Uromyces trifolii
United States

Cornell University, Plant Pathology Herbarium
Catalog #: S.E.,Econ.F.0509
J. Beal s.n.
Uromyces (Link) Unger