J.T.C. Vestergren [1-1800, plus extras]

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00066836
G. Lagerheim s.n.
Protomyces macrosporus Unger
Germany, Germania: Baden, Schwarzwald, Feldberg in regione alpina inter Feldberghof et Seebuck

USDA United States National Fungus Collections
Catalog #: BPI 678527
Lagerheim G. s.n.
Protomyces macrosporus Unger
Germany, Baden, Schwarzwald