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

USDA United States National Fungus Collections
Catalog #: BPI 1033258
s.n.
Peronospora pygmaea (Unger) Unger

USDA United States National Fungus Collections
Catalog #: BPI 784892
de Thumen s.n. 00 May 1871
Plasmopara pygmaea (Unger) J. Schröt.
Austria, Lower Austria, Krems