G. Briosi and F. Cavara [1-475]

USDA United States National Fungus Collections
Catalog #: BPI 947063
s.n.
Oidium quercinum Thüm.

USDA United States National Fungus Collections
Catalog #: BPI 409721
Bergamasco D. L. s.n.
Oidium quercinum Thüm.
Italy, Pavia, Boschi Dei Camaldoli, Naples Botanic Garden & vicinity