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

University of Michigan Herbarium
Catalog #: 334367
F. Petrak #s. n. 22 August 1923
Physoderma butomi J. Schröt.
Czech Republic, Máhr. Weisskirchen: Skalička