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