Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
University of Wisconsin-Madison Herbarium
F. Petrak #s.n. 07 August 1919
Sphaerospora trechispora (Berk. & Broome) Sacc.
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USDA United States National Fungus Collections
Petrak s.n. 07 August 1919
Sphaerospora trechispora (Berk. & Broome) Sacc.
Czechoslovakia, Hranice (Maehr.-weisskirchen)
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