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

Michigan State University Herbarium
Catalog #: MSC0186009
J. C. Arthur s.n. 08 July 1899
Ustilago arthurii H.H. Hume
United States, Iowa, Spirit Lake

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00087182
J. C. Arthur s.n. 08 July 1899
Ustilago arthurii H.H. Hume
United States, Iowa, Spirit Lake

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00087183
J. C. Arthur s.n. 08 July 1899
Ustilago arthurii H.H. Hume
United States, Iowa, Spirit Lake

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0063893
J.C. Arthur #s.n. 08 July 1899
Ustilago arthurii H.H. Hume
United States, Iowa, Spirit Lake;

Purdue University, Kriebel Herbarium
Catalog #: PUL00027816
JC Arthur s.n. 08 July 1899
Ustilago arthurii H.H. Hume
United States, Iowa, Dickinson, Spirit lake