H.W. Ravenel and M.C. Cooke [1-800, plu extras]

Cornell University, Plant Pathology Herbarium
Catalog #: Rav.,F.Amer.0168
s.n.
Helminthosporium Link
United States

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00055223
H. W. Ravenel s.n.
Helminthosporium fragillissimum
United States, South Carolina, Aiken, Aiken;

Academy of Natural Sciences of Drexel University
Catalog #: PH00311261
H. W. Ravenel #s.n.
Helminthosporium fragilissimum Berk. & M.A. Curtis
United States, South Carolina, Aiken, Aiken

USDA United States National Fungus Collections
Catalog #: BPI 428975
Ravenel H. W. s.n.
Helminthosporium fragilissimum Berk. & M.A. Curtis
United States, South Carolina, Aiken