Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
|
University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0066344
F. Petrak #s.n. 18 June 1924
Bremia lactucae Regel
|
|
|
|
|
|
USDA United States National Fungus Collections
Catalog #: BPI 786189
Petrak, F. s.n. 06 August 1924
Bremia lactucae var. helichrysi
Czechoslovakia, Mahr.-Weisskirchen garden
|
|
|
|
|
