References from the California Lichen Catalog
- HERRE, A. W. C. T. 1942c.
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Additions to and comments upon the lichen flora of the Santa Cruz Peninsula, California.
American Midland Naturalist 28: 752–755.
- PRINTZEN, C. 1995.
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Die Flechtengattung Biatora in Europa.
Bibliotheca Lichenologica 60: 1–275.
J. Cramer, Berlin.
- TUCKER, S. C., & W. P. JORDAN. 1979 (1978).
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A catalog of California lichens.
Wasmann Journal of Biology 36: 1–105.
Complete references section