References from the California Lichen Catalog

FINK, B. 1935.

The lichen flora of the United States. Ann Arbor.

HERRE, A. W. C. T. 1906.

The foliaceous and fruticose lichens of the Santa Cruz peninsula, California. Proceedings of the Washington Academy of Sciences 7: 325–396.

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.