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

University of Illinois Herbarium
Catalog #: ILL00085160
s.n.
Gleosporium tremulae

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00054003
Prof. Passerini s.n.
Gloeosporium tremulae (Lib.) Pass.
Italy, Vigheffio bei Parma