F.K.A.E.J. de Thümen [1-2300, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 1035551
s.n.
Gymnosporangium fuscum Gasp.

University of Illinois Herbarium
Catalog #: ILL00077094
P. Sydow s.n. 00 April 1876
Gymnosporangium fuscum Oerst.

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00054570
P. Sydow s.n. 00 April 1876
Gymnosporangium fuscum Oerst.
, Marchia: Charlottenburg