Petrak, Crypt. Exs.
F. Petrak [3201- 4700]

University of California Berkeley, University Herbarium
Catalog #: UC728228
K. Starcs #s.n.
Puccinia nigrescens Peck
Latvia, prov. Vidzeme distr. Riga

University of California Berkeley, University Herbarium
Catalog #: UC728229
L. Hollôs #s.n.
Puccinia nigrescens Peck
Hungary, Szekszard