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

Oregon State University Herbarium - Lichens
Catalog #: 103245
e472a8b7-c9ed-4e54-b9ec-5792928ed484
Prof. H. A. Green #N.A.L. 324 25 February 1899
Graphis elegans (Borrer ex Sm.) Ach.
United States, North Carolina, Polk, Tryon;