Petrak, Crypt. Exs.
F. Petrak [3201- 4700]

USDA United States National Fungus Collections
Catalog #: BPI 1042654
s.n.
Ustilago warmingii Rostr.
Norway

USDA United States National Fungus Collections
Catalog #: BPI 1042765
s.n.
Ustilago warmingii Rostr.
Hungary

Field Museum of Natural History
Catalog #: C0273600F
620da8f1-f090-413a-9a1c-21b6ebf4632b
G. Lagerheim s.n. 00 August 1893
Ustilago warmingii Rostr. Rostr.
Norway, Troms, Nord-Troms, Tromsø; Tromsø