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.

LLANO, G. A. 1950.

A monograph of the lichen family Umbilicariaceae in the western hemisphere. Office of Naval Research, Navexos P-831: 1–281.

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

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