LichenIreland
  • Bacidia scopulicola (Nyl.) A.L.Sm.
Bacidia scopulicola
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This variable coastal crustose lichen is essentially a plant of siliceous cliff overhangs and seashore crevices. It has a thick, warted, beige-brown to pale olive green thallus composed of loose granules or isidia these often covering the whole surface. Discs are rare, large, twisted and dark brown. Throughout Ireland. [The concept of this species has recently been revised (2009) resulting in the recognition of a further species B. sipmanii. How B. scopulicola differs from B. sipmanii is as follows: B. scopulicola a thickly isidiate thallus and very like the description given above with discs very rare or absent. B. sipmanii has a thin, irregularly cracked thallus and is richly fertile. This second species is known to occur in County Kerry.]

Key characteristics

  • Coastal, crevice or underhang species of acid rock sometimes spreading to old Thrift cushions
  • Thallus: beige to olive green, heavily granular or isidiate.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Bacidia scopulicola (Nyl.) A.L.Sm.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=18242 Accessed on 2017-12-18.