Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0072110
F. Petrak #s.n. 00 June 1929
Leptosphaeria macrospora Thüm.
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0073522
F. Petrak #s.n. 00 September 1925
Microdiplodia juglandis Died.
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