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

University of Illinois Herbarium
Catalog #: ILL00077337
s.n.
Sphaeronema polymorphum

USDA United States National Fungus Collections
Catalog #: BPI 361077
Libert Marie Anne s.n.
Sphaeronaema polymorphum Auersw.
Belgium, Malmedy

USDA United States National Fungus Collections
Catalog #: BPI 1035789
Libert., M.A. #s.n.
Phoma polymorpha Verona
Belgium, Malmedy

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00080861
M. A. Libert s.n.
Sphaeronema polymorphum
Belgium, Malmedy

Purdue University, Kriebel Herbarium
Catalog #: PUL00029834
MA Libert s.n.
Sphacronema polymorphum
Belgium, Malmedy;