References from the California Lichen Catalog
- FINK, B. 1935.
-
The lichen flora of the United States.
Ann Arbor.
- 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.
- WEBER, W. A., C. BRATT, & J. LARSON. 1987.
-
Lichens and bryophytes of the Santa Rosa Plateau Nature Conservancy Reserve, Riverside County, California.
Evansia 4: 21–25.
Complete references section