References from the California Lichen Catalog
- BALTZO, D. E. 1970.
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A study of the lichens of Mount Diablo State Park.
M. A. thesis, San Francisco State College, San Francisco.
- THOMSON, J. W., & E. H. KETCHLEDGE. 1958.
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The 1957 foray of the American Bryological Society on the Santa Cruz peninsula, California.
The Bryologist 61: 155–161.
- 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