References from the California Lichen Catalog
- BRODO, I. M., S. D. SHARNOFF, & S. SHARNOFF. 2001.
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Lichens of North America.
Yale University Press, New Haven.
- DEGELIUS, G. 1954.
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The lichen genus Collema in Europe: morphology, taxonomy, ecology.
Symbolae Botanicae Upsalienses 13(2): 1–499.
- DEGELIUS, G. 1974.
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The lichen genus Collema with special reference to extra-European species.
Symbolae Botanicae Upsalienses 20(2): 1–215.
- DOELL, J., S. TUCKER, & J. ROBERTSON. 1999.
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Lichens of the Sweeney Granite Mountains Desert Research Center and environs.
Bulletin of the California Lichen Society 6: 8–12.
- GOWARD, T., B. McCUNE, & D. MEIDINGER. 1994.
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The lichens of British Columbia. Illustrated keys. Part 1. Foliose and squamulose species.
British Columbia Ministry of Forests, Crown Publications Inc., Victoria, B. C., Canada.
- HASSE, H. E. 1903c.
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Additions to the lichen flora of southern California.
Bulletin of the Southern California Academy of Sciences 2: 52–54.
- HERRE, A. W. C. T. 1912b.
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Supplement to the lichen flora of the Santa Cruz peninsula, California.
Journal of the Washington Academy of Sciences 2: 380–386.
- SCHULTZ, M., B. D. RYAN, & T. H. NASH III. 2004.
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Collema, pp. 65–80,
in T. H. Nash III, B. D. Ryan, P. Diederich, C. Gries, & F. Bungartz (eds.), Lichen flora of the Greater Sonoran Desert region, Vol. 2.
Lichens Unlimited, Arizona State University, Tempe.
- TUCKER, S. C., & W. P. JORDAN. 1979 (1978).
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A catalog of California lichens.
Wasmann Journal of Biology 36: 1–105.
- WRIGHT, D. 1997.
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Field trip to the Lake Pillsbury area, Lake County, California, April 19–20, 1997.
Bulletin of the California Lichen Society 4: 28–32.
Complete references section