References from the California Lichen Catalog

BALTZO, D. E. 2002 (2001).

San Francisco Watershed lichens — a more comprehensive list. Bulletin of the California Lichen Society 8: 44–56.

FINK, B. 1935.

The lichen flora of the United States. Ann Arbor.

HASSE, H. E. 1903c.

Additions to the lichen flora of southern California. Bulletin of the Southern California Academy of Sciences 2: 52–54.

HASSE, H. E. 1915b.

Additions to the lichen flora of southern California. No. 11. The Bryologist 18: 92–94.

TUCKER, S. C., & W. P. JORDAN. 1979 (1978).

A catalog of California lichens. Wasmann Journal of Biology 36: 1–105.