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

USDA United States National Fungus Collections
Catalog #: BPI 1035499
s.n.
Libertella betulina Desm.

USDA United States National Fungus Collections
Catalog #: BPI 401853
Martianoff N. s.n.
Libertella betulina Desm.
USSR, Siberia, W., Minusinsk

University of Illinois Herbarium
Catalog #: ILL00077041
N. Martianoff s.n.
Libertella betulina Desm.
Russian Federation, Siberia, Minussinsk

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00057561
N. Martianoff s.n.
Libertella betulina Desm.
Russia, Sibiria occidentalis: Minussinsk