References from the California Lichen Catalog
- FINK, B. 1935.
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The lichen flora of the United States.
Ann Arbor.
- HASSE, H. E. 1898a.
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Lichens of Southern California.
Los Angeles.
- McCLATCHIE, A. J. 1897.
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Seedless plants of southern California. Protophytes — Pteridophytes.
Proceedings of the Southern California Academy of Sciences 1: 363–370.
- TUCKER, S. C., & W. P. JORDAN. 1979 (1978).
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A catalog of California lichens.
Wasmann Journal of Biology 36: 1–105.
Complete references section