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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0068039
F. Petrak #s.n. 28 September 1913
Cytospora petrakii H. Zimm.
Czech Republic, Mähr-Weisskirchen: [Svrčov]