Constancea 84, 2006
University and Jepson Herbaria
California Lichen Catalog

References from the California Lichen Catalog

BALTZO, D. E. 1970.
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.
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).
A catalog of California lichens. Wasmann Journal of Biology 36: 1–105.
Complete references section