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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0075991
F. Petrak #2281 00 October 1926
Phlyctema caulium (Lib.) Petr.
Czech Republic, Mähr-Weisskirchen. Ribarz