References from the California Lichen Catalog

BRODO, I. M., S. D. SHARNOFF, & S. SHARNOFF. 2001.

Lichens of North America. Yale University Press, New Haven.

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.