G. Briosi and F. Cavara [1-475]
USDA United States National Fungus Collections
s.n.
Oidium quercinum Thüm.
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USDA United States National Fungus Collections
Bergamasco D. L. s.n.
Oidium quercinum Thüm.
Italy, Pavia, Boschi Dei Camaldoli, Naples Botanic Garden & vicinity
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