P. Sydow and W. Zopf [1-4900]

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0012636
P. Sydow s.n. 00 August 1893
Oidium erysiphoides Fr.
Germany, Berlin;

USDA United States National Fungus Collections
Catalog #: BPI 1058039
P. Sydow #s. n. 00 August 1893
Oidium erysiphoides Fr.
Germany, Berlin