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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0083105
F. Petrak #s.n. 07 August 1919
Sphaerospora trechispora (Berk. & Broome) Sacc.

USDA United States National Fungus Collections
Catalog #: BPI 573906
Petrak s.n. 07 August 1919
Sphaerospora trechispora (Berk. & Broome) Sacc.
Czechoslovakia, Hranice (Maehr.-weisskirchen)