Petrak, Fl. Bohem. Morav. Exs. Pilze
F. Petrak [1-2575]

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0086198
F. Petrak #s.n. 00 December 1913
Valsa tenella Fabre

USDA United States National Fungus Collections
Catalog #: BPI 575365
Petrak F. s.n. 00 December 1913
Valsa tenella Fabre
Czechoslovakia, Hranice (Maehr.-weisskirchen), Swrcow