References from the California Lichen Catalog

PRINTZEN, C. 1995.

Die Flechtengattung Biatora in Europa. Bibliotheca Lichenologica 60: 1–275. J. Cramer, Berlin.

TUCKER, S. C., & W. P. JORDAN. 1979 (1978).

A catalog of California lichens. Wasmann Journal of Biology 36: 1–105.