Cummings, Williams & Seymour: Lich. Bor.-Amer.
Francis W. Pennell [1-280]

Oregon State University Herbarium
Catalog #: 95422
Thos. A. Williams #N.A.L. 273. 00 December 1897
Coccocarpia palmicola (Spreng.) Arv. & D.J. Galloway
United States, Maryland, Sligo Creek