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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0069456
J. Hruby #s.n. 00 August 1924
Ectostroma robiniae Castagne
Czech Republic, Brünn in Mähren