References from the California Lichen Catalog

HASSE, H. E. 1913b.

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

McCLATCHIE, A. J. 1897.

Seedless plants of southern California. Protophytes — Pteridophytes. Proceedings of the Southern California Academy of Sciences 1: 363–370.