References from the California Lichen Catalog

HASSE, H. E. 1898a.

Lichens of Southern California. Los Angeles.

HERRE, A. W. C. T. 1910.

The lichen flora of the Santa Cruz peninsula, California. Proceedings of the Washington Academy of Sciences 12(2): 27–269.

TUCKERMAN, E. 1877.

Observations on North American and other lichens. No. 4. Proceedings of the American Academy of Arts and Sciences 12: 166–185.