F.K.A.E.J. de Thümen [1-750, plus extras]
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University of Illinois Herbarium
Catalog #: ILL00084949
Thumen s.n. 00 July 1874
Exoascus populi f. populi nigrae
Germany, Bavaria, Beyreuth; Beyreuth
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University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00041912
Thumen #s.n. 00 July 1874
Exoascus populi ThÙm.
Germany, Bayreuth
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