References from the California Lichen Catalog
- APTROOT, A. 2002.
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Acrocordia, p. 89; Distenopyrenis, pp. 180–181; Julella, pp. 254–256; Kirschsteiniothelia, pp. 257–258; Porina, pp. 402–405; Pseudopyrenula, p. 417; Pyrenula, pp. 435–437; Tomasellia, pp. 487–488,
in T. H. Nash III, B. D. Ryan, C. Gries, & F. Bungartz (eds.), Lichen flora of the Greater Sonoran Desert region, Vol. 1.
Lichens Unlimited, Arizona State University, Tempe.
- FINK, B. 1935.
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The lichen flora of the United States.
Ann Arbor.
- 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.
- TUCKER, S. C., & W. P. JORDAN. 1979 (1978).
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A catalog of California lichens.
Wasmann Journal of Biology 36: 1–105.
Complete references section