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

USDA United States National Fungus Collections
Catalog #: BPI 1039094
s.n.
Protomyces macrosporus Unger

USDA United States National Fungus Collections
Catalog #: BPI 678628
Magnus P. s.n. 12 August 1904
Protomyces macrosporus Unger
Switzerland, Graubuenden

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00066841
P. Magnus s.n. 12 August 1904
Protomyces macrosporus Unger
Switzerland, Helvetia: Graubunden, Furstenalp