Constancea 84, 2006
University and Jepson Herbaria
California Lichen Catalog

References from the California Lichen Catalog

TUCKER, S. C. 2002 (2001).
New reports or divergences in range for lichens of California, based on Lichens of North America by I. Brodo, S. D. Sharnoff, and S. Sharnoff, 2001. Bulletin of the California Lichen Society 8: 59–71.
Complete references section