F.K.A.E.J. de Thümen [1-750, plus extras]

University of Illinois Herbarium
Catalog #: ILL00084894
Passerini s.n.
Gloeosporium betulinum Westend.
Italy, Ober-Italien, Collecchio b. Parma

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00040583
ThÙmen #s.n.
Gloeosporium betulinum Pass.
Italy, Collecchio bei Parma