Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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USDA United States National Fungus Collections
Catalog #: BPI 047182
Petrak F. s.n. 20 August 1913
Puccinia argentata (Schultz) G. Winter
Czechoslovakia, Hranice (Maehr.-weisskirchen), Marian Udoli (Mariental)
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USDA United States National Fungus Collections
Catalog #: BPI 756512
Petrak, J. s.n. 08 December 1911
Collybia velutipes (Curtis) P. Kumm.
Czech Republic, Weisskirchen
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