F. Petrak [1-650]
USDA United States National Fungus Collections
Petrak F. s.n. 27 March 1918
Gnomoniella melanostyla (DC.) Sacc.
USSR, Stryj, Podhorce
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USDA United States National Fungus Collections
Petrak, F. s.n. 15 May 1917
Plasmopara pygmaea (Unger) J. Schröt.
Poland, Stryj, Walder
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