References from the California Lichen Catalog

FINK, B. 1935.

The lichen flora of the United States. Ann Arbor.

HASSE, H. E. 1909.

Additions to the lichen flora of southern California. No. 2. The Bryologist 12: 101–104.

HASSE, H. E. 1913b.

The lichen flora of southern California. Contributions from the United States National Herbarium 17: 1–132.

TUCKERMAN, E. 1872.

Genera Lichenum. An arrangement of the North American lichens. Edwin Nelson, Amherst. 281 pp. + index.