Cummings & Seymour, Dec. N. Amer. Lich. [Wellesley (Massachusetts)]
Clara Eaton Cummings, T.A. Williams & Arthur Bliss Seymour [1-150]
IndExs #938157617

New York Botanical Garden
Catalog #: 1534414
s.n.
Cladonia parasitica (Hoffm.) Hoffm.

New York Botanical Garden
Catalog #: 04440080
394115e3-c405-4a86-972a-c2461077d6e2
s.n.
Cladonia delicata (Ehrh.) Flörke

California Academy of Sciences Lichen dataset
Catalog #: 468183
Williams, Thomas Albert #251 01 May 1897
Cladonia parasitica (Hoffm.) Hoffm.
United States, District of Columbia, Rock Creek Park

Duke University Herbarium Lichen Collection
Catalog #: 192592
bb4544c1-fa34-11e2-a92b-005056000560
Williams, Thomas, A. #s.n. 01 May 1897
Cladonia parasitica (Hoffm.) Hoffm.
United States, District of Columbia, Rock Creek Park