Brenckle, Fungi Dakot.
J.F. Brenckle [1-675, plus extras]

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP23353
O. A. Stevens s.n. 30 August 1919
Claviceps purpurea sclerotium (Fr.) Tul
United States, North Dakota, near Fargo

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00047745
O. A. Stevens s.n. 30 August 1919
Claviceps purpurea (Fr.) Tul.
United States, North Dakota, Cass, Fargo;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000282638
O. A. Stevens #453 30 August 1919
Claviceps purpurea (Fr.) Tul.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0002208
O.A. Stevens #s.n. 30 August 1919
Claviceps purpurea (Fr.) Tul.
United States, North Dakota, near Fargo

Brown University Herbarium
Catalog #: CBRU00010882
OA Stevens s.n. 30 August 1919
Claviceps purpurea (Fr.) Tul.
United States, North Dakota, Cass, Fargo;

Purdue University, Kriebel Herbarium
Catalog #: PUL00023143
OA Stevens s.n. 30 August 1919
Claviceps purpurea (Fr.) Tul.
United States, North Dakota, Cass, Fargo;

USDA United States National Fungus Collections
Catalog #: BPI 634475
Stevens O. A. s.n. 30 August 1919
Claviceps purpurea (Fr.) Tul.
United States, North Dakota, Fargo near

USDA United States National Fungus Collections
Catalog #: BPI 922166
Stevens, O. A. #s. n. 30 August 1919
Claviceps purpurea (Fr.) Tul.
United States, North Dakota, near Fargo

USDA United States National Fungus Collections
Catalog #: BPI 946227
Stevens, O.A. #s. n. 30 August 1919
Claviceps purpurea (Fr.) Tul.
United States, North Dakota, near Fargo