Cummings, Williams & Seymour: Lich. Bor.-Amer.Francis W. Pennell [1-280]
Oregon State University Herbarium
Clara E. Cummings #N. A. L. 41 02 April 1896
Dendrographa leucophaea (Tuck.) Darb.
United States, California, La Jolla.
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Oregon State University Herbarium
Marshall Howe s.n. 24 March 1893
Rhizocarpon bolanderi (Tuck.) Herre
United States, California, Alameda, Berkeley;
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