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

USDA United States National Fungus Collections
Catalog #: BPI 1033864
s.n.
Sphaerella maculiformis f. carpini Rabenh.

University of Illinois Herbarium
Catalog #: ILL00085107
von Thumen s.n.
Sphaerella maculaeformis (Pers.) Auersw.

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00060469
von Thumen s.n.
Mycosphaerella maculaeformis
Germany, Bayern, bei Bayreuth