Constancea 84, 2006
University and Jepson Herbaria
California Lichen Catalog

References from the California Lichen Catalog

TØNSBERG, T. 2004.
Chrysothrix, pp. 62–63; Lepraria, pp. 322–329; Normandina, pp. 380–381, Phlyctis, pp. 415–416, 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.
Complete references section