Constancea 84, 2006
University and Jepson Herbaria
California Lichen Catalog

References from the California Lichen Catalog

SIERK, H. A. 1964.
The genus Leptogium in North America north of Mexico. The Bryologist 67: 245–317.
THOMSON, J. W. 1984.
American Arctic lichens. 1. The macrolichens. Columbia University Press, New York. Pp. 1–504.
TUCKER, S. C., & W. P. JORDAN. 1979 (1978).
A catalog of California lichens. Wasmann Journal of Biology 36: 1–105.
Complete references section