Thümen, Fungi Austr. Exs.F.K.A.E.J. de Thümen [1-1200]
USDA United States National Fungus Collections
s.n.
Podosphaera kunzei Lév.
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USDA United States National Fungus Collections
Thuemen s.n.
Podosphaera oxyacanthae (DC.) de Bary
Czechoslovakia, Bohemia
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