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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0077830
s.n.
Protomyces kreuthensis Krieg.

USDA United States National Fungus Collections
Catalog #: BPI 1038561
s.n.
Protomyces pachydermus Thüm.

USDA United States National Fungus Collections
Catalog #: BPI 1038562
s.n.
Protomyces pachydermus Thüm.

USDA United States National Fungus Collections
Catalog #: BPI 1038563
s.n.
Protomyces pachydermus Thüm.

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00041290
G. Lagerheim #s.n. 00 July 1901
Protomyces pachydermus Thüm.
Sweden, Upland

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00041291
G. Lagerheim #s.n. 00 July 1901
Protomyces pachydermus Thüm.
Sweden, Upland