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

University of Illinois Herbarium
Catalog #: ILL00085128
s.n.
Erysiphe martii Lév.

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00052449
Thumen s.n. 00 September 1876
Erysiphe martii Lév.
Germany, Nieder-Oesterreich: bei Klosterneuburg