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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0066364
F. Petrak #s.n. 24 January 1921
Byssotheciella tiliae Petr.
Czech Republic, Mahr-Weisskirchen: Teplitz