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

USDA United States National Fungus Collections
Catalog #: BPI 1020681
s.n.
Plasmodiophora brassicae Woronin
United States

USDA United States National Fungus Collections
Catalog #: BPI 1020682
s.n.
Plasmodiophora brassicae Woronin
United States

University of Florida Herbarium
Catalog #: FLAS-F-00457
J.E. Humphrey s.n. 00 July 1891
Plasmodiophora brassicae Woronin
USA, Massachusetts, Hampshire, Amherst

Cornell University, Plant Pathology Herbarium
Catalog #: S.E.,Econ.F.0402
N. J. Kelsey s.n.
Plasmodiophora brassicae Woronin