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

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00065423
H. L. Merro s.n. 12 July 1892
Physoderma pluriannulata
United States, Michigan, Ann Arbor;

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0214838
H. L. Merrow s.n. 12 July 1892
Physoderma pluriannulatum (Berk. & M.A. Curtis) Karling
United States, Michigan, Ann Arbor;

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP28985
H.L. Merrow s.n. 12 July 1892
Synchytrium pluriannulatum (M.A. Curtis) Farl.
United States, Michigan, Washtenaw, Ann Arbor

USDA United States National Fungus Collections
Catalog #: BPI 794918
Merrow, H. L. s.n. 12 July 1892
Synchytrium pluriannulatum Farl.
United States, Michigan, Ann Arbor

USDA United States National Fungus Collections
Catalog #: BPI 794920
Merrow, H. L. s.n.
Synchytrium pluriannulatum Farl.
United States, Michigan, Ann Arbor

USDA United States National Fungus Collections
Catalog #: BPI 795923
Merrow, H. L. s.n. 12 July 1892
Physoderma pluriannulatum (Berk. & M.A. Curtis) Karling
United States, Michigan, Ann Arbor