lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "orange lichens",USDA Natural Resources Conservation Service Name Search /ref> but they are not always orange, as in the case of '' C. albovariegata''.Plants Profile for Caloplaca (orange lichen), USDA /ref> The distribution of this lichen genus is worldwide, extending from Antarctica to the high Arctic. 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. An example species in this genus is ''
Caloplaca saxicola
''Caloplaca saxicola'' is a small bright orange crustose lichen, crustose lichen that grows on rock all over the world. It is List of common names of lichen genera, commonly called rock firedot lichen,Field Guide to California Lichens, Stephen Sh ...
'', a lichen with worldwide distribution including the Antarctic continent, Europe and northern North America including the northern reaches of the Canadian
boreal forest
Taiga (; rus, тайга́, p=tɐjˈɡa; relates to Mongolic and Turkic languages), generally referred to in North America as a boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces, ...
s.
A new species of ''Caloplaca'', '' C. obamae'', the first species to be named in honor of
Barack Obama
Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, Obama was the first African-American president of the U ...
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
Caloplaca chrysodeta
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "or ...
''
Image:Caloplaca citrina-2.jpg, ''
Caloplaca citrina
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
''
Image:Caloplaca feracissima-2.jpg, ''
Caloplaca feracissima
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "or ...
''
Image:Caloplaca flavorubescens.jpg, ''
Caloplaca flavorubescens
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
''
Image:Caloplaca flavovirescens.jpg, ''
Caloplaca flavovirescens
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
''
Image:Caloplaca ignea Arup 711912 crop.jpg, ''
Caloplaca ignea
''Igneoplaca'' is a genus in the subfamily Xanthorioideae of the family Teloschistaceae. It contains a single species, the crustose lichen ''Igneoplaca ignea''.
Taxonomy
This species was first formally described in 1995 by Swedish lichenologis ...
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Image:Caloplaca luteoalba-1.jpg, ''
Caloplaca luteoalba
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
''
Image:Caloplaca.saxicola.jpg, ''
Caloplaca saxicola
''Caloplaca saxicola'' is a small bright orange crustose lichen, crustose lichen that grows on rock all over the world. It is List of common names of lichen genera, commonly called rock firedot lichen,Field Guide to California Lichens, Stephen Sh ...
''
Image:Caloplaca sideritis-1.jpg, ''
Caloplaca sideritis
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
''
Image:Caloplaca thallincola.jpg, ''
Caloplaca thallincola
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
''
Image:Caloplaca xanthostigmoidea-1.jpg, ''
Caloplaca xanthostigmoidea
''Caloplaca'' is a lichen genus comprising a number of distinct species. Members of the genus are commonly called firedot lichen, jewel lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, gold lichens, "ora ...
''
Image:Caloplaca feracissima-8.jpg, Spore from an acus in an apothecium of ''C. feracissima''; photographed through a compound microscope, ×1000