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

USDA United States National Fungus Collections
Catalog #: BPI 1003074
s.n.
Helminthosporium parvulum Cooke
United States

USDA United States National Fungus Collections
Catalog #: BPI 1003979
s.n.
Helminthosporium parvulum Cooke
United States

USDA United States National Fungus Collections
Catalog #: BPI 429733
Ravenel H. W. s.n.
Helminthosporium parvulum Cooke
United States, South Carolina, Aiken