Hale, Lich. Amer. Exs. [Washington, D.C.]
Mason Ellsworth Hale, Jr. [76-250]
IndExs #545270400

Duke University Herbarium Lichen Collection
Catalog #: 306807
Hale, Mason E. #s.n. 00 August 1969
Usnea cavernosa Tuck.
United States, Minnesota, Hubbard, Lasalle Spring Bog, Itasca State Park

University of Wisconsin - Madison
Catalog #: WIS-L-0111543
Mason E. Hale #123 01 August 1969
Usnea cavernosa Tuck.
United States, Minnesota, Hubbard, LaSalle Spring Bog, Itasca State Park.

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0043442
Mason E. Hale #L 53438 00 August 1969
Usnea cavernosa Tuck.
United States, Minnesota, Hubbard, Lasalle Spring Bog, Itasca State Park