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

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0001704
P. Hennings s.n. 00 July 1891
Bremia lactucae Regel
Germany, Berlin, Berlin; Berlin Botanical Garden

USDA United States National Fungus Collections
Catalog #: BPI 1056301
P. Sydow #s. n. 00 August 1888
Bremia lactucae Regel
Germany, Klein Machnow, Berlin

New York Botanical Garden
Catalog #: 1959312
3503eb1d-16a6-4e81-b59b-128cb6f2d43f
P. Sydow #s.n. 00 August 1888
Bremia lactucae Regel
Germany, Machnow [Which was incorporated into the municipality Rangsdorf in 2003], South of Berlin