Sea Ivory

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.
Sea Ivory Sea Ivory just in from the coast of Wester Ross. This particular scene on Torridonian Sandstone. Ramalina siliquosa,Sea Ivory,Wester Ross

Appearance

The branches are flattened and grey, and bear disc-like spore-producing bodies.
Sea Ivory Beautiful lichen growing very close to the sea spray of the coast Ramalina siliquosa,Sea Ivory,Wester Ross

Status

It is found in Iceland where it has a conservation status of a vulnerable species.

Predators

It forms part of the diet of sheep in Shetland and on the coast of North Wales.

References:

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Taxonomy
KingdomFungi
DivisionAscomycota
ClassLecanoromycetes
OrderLecanorales
FamilyRamalinaceae
GenusRamalina
SpeciesR. siliquosa
Photographed in
United Kingdom