H.G. Winter [2601-3600, plus extras]

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0090591
s.n.
Helminthosporium persistens Cooke & Ellis
USA, Pennsylvania

Field Museum of Natural History
Catalog #: C0298505F
14be947c-d13d-44a2-b13d-64f6dfa67759
J. B. Ellis #s.n.
Helminthosporium persistens Cooke & Ellis Cooke & Ellis
U.S.A., Pennsylvania, [Precise locality unknown]