References from the California Lichen Catalog

FINK, B. 1935.

The lichen flora of the United States. Ann Arbor.

HASSE, H. E. 1906.

Contributions to the lichen flora of southern California. Bulletin of the Southern California Academy of Sciences 5: 38–45.

MERRILL, G. K. 1923.

Lichens. Pp. 358–377, in C. F. Millspaugh and L. W. Nuttall (eds.), Flora of Santa Catalina Island, California. Publications of the Field Museum of Natural History, Botanical Series, vol. 5.

ZAHLBRUCKNER, A. 1928.

Catalogus Lichenum Universalis, Vol. V. Leipzig, Berlin.