Ramalina siliquosa

Ramalina siliquosa, also known as sea ivory, is a tufted and branched lichen which is widely found on siliceous rocks and stone walls on coastlands round the British Isles, occasionally slightly inland. It grows well above the high-tide mark but is still very tolerant of salt spray. The branches are flattened and grey, and bear disc-like spore-producing bodies. It forms part of the diet of sheep in Shetland and on the coast of North Wales.[2] It is found in Iceland where it has a conservation status of a vulnerable species.[3]

Ramalina siliquosa
Scientific classification
Kingdom:
Fungi
Division:
Ascomycota
Class:
Lecanoromycetes
Order:
Lecanorales
Family:
Ramalinaceae
Genus:
Ramalina
Species:
R. siliquosa
Binomial name
Ramalina siliquosa
(Huds.) A.L.Sm. (1918)
Synonyms[1]

Lichen siliquosus Huds. (1762)

Taxonomy

The species was originally described as Lichen siliquosus by the botanist William Hudson in 1762.[4] It was transferred to the genus Ramalina by Annie Lorrain Smith in 1918.[5]

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References
  1. "Ramalina siliquosa (Huds.) A.L. Sm. 1918". MycoBank. International Mycological Association. Retrieved 2011-06-08.
  2. "Sea ivory - Ramalina siliquosa". MarLIN. The Marine Life Information Network. Retrieved 2013-10-19.
  3. Icelandic Institute of Natural History (1996). Válisti 1: Plöntur (in Icelandic). Reykjavík: Náttúrufræðistofnun Íslands.
  4. Hudson W. (1762). Flora Anglica (in Latin). p. 460.
  5. Smith AL. (1918). A Monograph of the British Lichens. 1 (2 ed.). p. 172.


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