LichenIreland
  • Thelotrema lepadinum (Ach.) Ach.
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Thelotrema lepadinum
© Robert Thompson
Thelotrema lepadinum
© Robert Thompson
Thelotrema lepadinum
© Robert Thompson
Thelotrema lepadinum
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(Map updated: 11 August 2009)
Thelotrema lepadinum
© Mike Simms
Thelotrema lepadinum
© Mike Simms
 

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This is the commonest of the three Irish representatives of this mainly tropical genus. In T. lepadinum the raised discs resemble barnacle-like warts scattered over a shiny, pale, grey-cream crust. It can be found mostly on the smooth bark of trees where there is a history of continuous canopy cover, but can also spread to rock.

Key characteristics

  • Shiny, wrinkled, grey-cream crust
  • The discs are pustules, barnacle-like in appearance, with pore-like openings.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Thelotrema lepadinum (Ach.) Ach.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=16954 Accessed on 2017-12-15.