References from the California Lichen Catalog
- THOMSON, J. W. 1984.
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American Arctic lichens. 1. The macrolichens. Columbia University Press, New York.
Pp. 1–504.
- TUCKER, S. C., & D. T. KOWALSKI. 1975.
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New state records from northern California.
The Bryologist 78: 366–368.
Complete references section