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

Oregon State University Herbarium
Catalog #: 53641
Marshall Howe #N.A.L. 172 01 March 1893
Buellia oidalea (Nyl.) Tuck.
United States, California, Alameda, Berkeley;