References from the California Lichen Catalog
- FINK, B. 1935.
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The lichen flora of the United States.
Ann Arbor.
- SIGAL, L. L. 1975.
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Lichens and mosses of California serpentine.
M. A. thesis, San Francisco State University, San Francisco.
- THOMSON, J. W. 1984.
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American Arctic lichens. 1. The macrolichens. Columbia University Press, New York.
Pp. 1–504.
- 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