References from the California Lichen Catalog
- FINK, B. 1935.
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The lichen flora of the United States.
Ann Arbor.
- GRUBE, M., & B. D. RYAN. 2002.
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Collemopsidium, pp. 162–164,
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.
- HARRIS, R. C. 1975.
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A taxonomic revision of the genus Arthopyrenia Massal. sensu lato (Ascomycetes) in North America.
Ph. D. dissertation, Michigan State University, East Lansing.
- HERRE, A. W. C. T. 1907.
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Lichen distribution in the Santa Cruz peninsula, California.
Botanical Gazette 43: 267–273.
- 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