Constancea 84, 2006
University and Jepson Herbaria
California Lichen Catalog

References from the California Lichen Catalog

HALE, M. E. 1979.
How to Know the lichens. Second Edition. W. C. Brown Co., Publ., Dubuque.
SMITH, D. W. 1980.
A taxonomic survey of the macrolichens of Sequoia and Kings Canyon National Parks. M. A. thesis, San Francisco State University, San Francisco. (Not seen; information based on summary by Wetmore, 1983.)
Complete references section