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

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0001706
P. Sydow s.n. 00 September 1892
Bremia lactucae Regel
Germany, Berlin, Berlin;

USDA United States National Fungus Collections
Catalog #: BPI 1056871
P. Sydow #s. n. 00 August 1890
Bremia lactucae Regel
Germany, Berlin, bot. Garten