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

USDA United States National Fungus Collections
Catalog #: BPI 920031
Clinton, G. P. s.n.
Synchytrium pluriannulatum Farl.
United States, Illinois, Champaign

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00065422
G. P. Clinton s.n.
Physoderma pluriannulata
United States, Illinois, Champaign;

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00065425
G. P. Clinton s.n.
Physoderma pluriannulata
United States, Illinois, Champaign;

Michigan State University Herbarium
Catalog #: MSC0214837
G. P. Clinton s.n.
Physoderma pluriannulatum (Berk. & M.A. Curtis) Karling
United States, Illinois, Champaign;

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP28987
G.P. Clinton s.n.
Synchytrium pluriannulatum (M.A. Curtis) Farl.
United States, Illinois, Champaign, Champaign