Biodiversity & Conservation

Sea ivory - Ramalina siliquosa - General information

Ramalina siliquosa

Image Harvey Tyler-Walters - Ramalina siliquosa on upper shore rock. Image width ca 7 cm.
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Distribution map

Ramalina siliquosa recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)

Why do the maps differ?

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Ramalina siliquosa is not listed under any importance categories.

General information

Key Icon Researched by: Dr Harvey Tyler-Walters Text page icon Refereed by:

Taxonomy icon Taxonomy

Phylum Ascomycota Sac fungi
Class Ascomycota Sac fungi
Map icon Recorded distribution in Britain and Ireland Widely distributed around the British Isles. Gaps in its recorded distribution are probably due to lack of suitable substrata.
Habitat information icon Habitat information Found on hard siliceous rock in and above the splash zone, and inland in areas subject to maritime influence, such as the tops of sea cliffs.
Text page icon Description A shrubby, yellow-grey to greenish grey lichen between 2 -7 cm long. The thallus is composed of erect or slightly pendant lobes, arising from the base, little divided, often scimitar shaped but very variable. Lobes may be glossy, or with granular outgrowths (warts) and wrinkled. The lobes are 2-9 mm wide with white spots towards the tips but not normally blackened at the base. The thallus often bears pale fawn coloured fruiting bodies, usually on short stalks. The thallus is hard and brittle when dry.

This review can be cited as follows:

Dr Harvey Tyler-Walters 2002. Ramalina siliquosa. Sea ivory. Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 03/09/2010]. Available from: <http://www.marlin.ac.uk/speciesfullreview.php?speciesID=4235>