References from the California Lichen Catalog
- HASSE, H. E. 1913b.
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The lichen flora of southern California.
Contributions from the United States National Herbarium 17: 1–132.
- HERRE, A. W. C. T. 1910.
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The lichen flora of the Santa Cruz peninsula, California.
Proceedings of the Washington Academy of Sciences 12(2): 27–269.
- HERRE, A. W. C. T. 1945.
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Lichen distribution in California.
The Bryologist 48: 1–7.
- HERRE, A. W. C. T. 1950a.
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The lichen flora of Mount Shasta, California.
The Bryologist 53: 43–54.
- MERRILL, G. K. 1923.
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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.
Complete references section