References from the California Lichen Catalog
- BRODO, I. M., S. D. SHARNOFF, & S. SHARNOFF. 2001.
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Lichens of North America.
Yale University Press, New Haven.
- VELDKAMP, J. F. 2004.
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Bilimbia (Lichenes) resurrected.
Lichenologist 36: 191–195.
Complete references section