Constancea 84, 2006
University and Jepson Herbaria
California Lichen Catalog

References from the California Lichen Catalog

HASSE, H. E. 1906.
Contributions to the lichen flora of southern California. Bulletin of the Southern California Academy of Sciences 5: 38–45.
TUCKER, S. C., & W. P. JORDAN. 1979 (1978).
A catalog of California lichens. Wasmann Journal of Biology 36: 1–105.
Complete references section