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

University of Illinois Herbarium
Catalog #: ILL00077583
s.n.
Helotium robustius (P. Karst.) P. Karst.

USDA United States National Fungus Collections
Catalog #: BPI 655202
Libert M. A. s.n.
Helotium robustius (P. Karst.) P. Karst.
Germany, Borussia

USDA United States National Fungus Collections
Catalog #: BPI 1036029
Libert M. A. s.n.
Helotium robustius (P. Karst.) P. Karst.
Belgium, Borussia Rhenana, Malmedy

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00055403
M. A. Libert s.n.
Helotium robustius (P. Karst.) P. Karst.
, Borussia rhenana: Malmedy

Purdue University, Kriebel Herbarium
Catalog #: PUL00034235
MA Libert s.n.
Helotium robustius (P. Karst.) P. Karst.
Belgium, Malmedy;