Thümen, Fungi Austr. Exs.F.K.A.E.J. de Thümen [1-1200]
USDA United States National Fungus Collections
s.n.
Oidium leucoconium Desm.
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USDA United States National Fungus Collections
Boller A. s.n.
Didymaria ungeri Corda
Austria, Lower Austria, Krems
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USDA United States National Fungus Collections
Eichler s.n.
Oidium leucoconium f. centifoliae
Czechoslovakia, formerly Austria Bohemia, Teplice Gardens
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