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

USDA United States National Fungus Collections
Catalog #: BPI 946124
s.n.
Gymnosporangium juvenescens F. Kern
United States

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00054834
O. A. Stevens s.n. 10 August 1915
Gymnosporangium juvenscens
United States, North Dakota, Near Williston

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000270511
O. A. Stevens #359a 10 August 1915
Gymnosporangium juvenescens F. Kern
United States, North Dakota, Near Williston

University of Michigan Herbarium
Catalog #: 278774
O. A. Stevens #s. n. 10 August 1915
Gymnosporangium juvenescens F. Kern
USA, North Dakota, Near Williston

Brown University Herbarium
Catalog #: CBRU00003241
OA Stevens s.n. 10 August 1915
Gymnosporangium juvenescens F. Kern
United States, North Dakota, Williams, Williston;