Constancea 84, 2006
University and Jepson Herbaria
California Lichen Catalog

References from the California Lichen Catalog

RYAN, B. D., H. T. LUMBSCH, M. I. MESSUTI, C. PRINTZEN, L. SLIWA, & T. H. NASH III. 2004.
Lecanora, pp. 176–286, in T. H. Nash III, B. D. Ryan, P. Diederich, C. Gries, & F. Bungartz (eds.), Lichen flora of the Greater Sonoran Desert region, Vol. 2. Lichens Unlimited, Arizona State University, Tempe.
RYAN, B. D., & T. H. NASH III. 1997.
Systematics of Lecanora subgenus Placodium (lichenized Ascomycotina) in North America: an overview, with keys. Nova Hedwigia 64: 111–127.
TUCKER, S. C., & W. P. JORDAN. 1979 (1978).
A catalog of California lichens. Wasmann Journal of Biology 36: 1–105.
Complete references section