Thümen, Fungi Austr. Exs.
F.K.A.E.J. de Thümen [1-1200]

USDA United States National Fungus Collections
Catalog #: BPI 1033387
s.n.
Sphaerotheca castagnei Lév.

USDA United States National Fungus Collections
Catalog #: BPI 605060
Thuemen s.n.
Sphaerotheca humuli (DC.) Burrill
Czechoslovakia, Bohemia