Caloplaca is a lichen genus[1] comprising a number of distinct species. Members of the genus are commonly called firedot lichen,[2]: 235  jewel lichen.[2]: 235  gold lichens, "orange lichens",[3][4] but they are not always orange, as in the case of C. albovariegata.[5] The distribution of this lichen genus is worldwide, extending from Antarctica[6] to the high Arctic.[7] It includes a portion of northern North America and the Russian High Arctic. There are about thirty species of Caloplaca in the flora of the British Isles.[8] An example species in this genus is Caloplaca saxicola, a lichen with worldwide distribution including the Antarctic continent, Europe and northern North America including the northern reaches of the Canadian boreal forests.

Caloplaca marina.JPG
The species C. marina
Scientific classification e
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Teloschistales
Family: Teloschistaceae
Genus: Caloplaca
Th.Fr. (1871)
Type species
Caloplaca cerina
(Ehrh. ex Hedw.) Th. Fr.

List of Caloplaca species

A new species of Caloplaca, C. obamae, the first species to be named in honor of Barack Obama, was discovered in 2007 on Santa Rosa Island in California and published in March 2009.[9]

List of speciesEdit

List of Caloplaca species



  1. ^ Brodo, Irwin M.; Sharnoff, Sylvia Duran; Sharnoff, Stephen; Laurie-Bourque, Susan (2001). Lichens of North America (1st ed.). Yale University Press. ISBN 978-0-300-08249-4.
  2. ^ a b Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2
  3. ^ USDA Natural Resources Conservation Service Name Search
  4. ^ Orange Lichen (Caloplaca), Encyclopedia of Life
  5. ^ Plants Profile for Caloplaca (orange lichen), USDA
  6. ^ Olech, M. (1993). "Four new species of Caloplaca from Antarctica". The Lichenologist. 25 (3): 261–269. doi:10.1006/lich.1993.1030.
  7. ^ Søchting, U.; Olech‡, M. (2007). "The Lichen Genus Caloplaca in Polar Regions". The Lichenologist. 27 (6): 463. doi:10.1017/S0024282995000594.
  8. ^ Dobson, F.S. (2000). Lichens, an illustrated guide to the British and Irish species (4th ed.). Slough, England: Richmond. ISBN 978-0-85546-315-1.
  9. ^ "New Species Of Lichen Named After President Barack Obama". ScienceDaily. 16 April 2009. Retrieved 16 April 2009.