LichenIreland
  • Dimerella lutea (Dicks.) Trevis.
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Dimerella lutea
© Mike Simms
Dimerella lutea
© Mike Simms
Dimerella lutea
© Mike Simms
Dimerella lutea
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(Map updated: 11 August 2009)
Dimerella lutea
© Mike Simms
 

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This epiphyte of old, mossy bark may be known at once by the bright orange or yellow-orange discs (up to 2mm diam.) ringed by paler orange (or yellow) margins. The thallus, a grey-green colour, grows as a spreading crust over the surface of mosses sometimes binding them into its structure. It can tolerate both damp and shade.

Key characteristics

  • Unique bright orange discs with paler margins on a crust spreading across (or hidden within) mossy bark
  • Mainly old woodland trees in areas with a long tree canopy history.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Dimerella lutea (Dicks.) Trevis.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=16963 Accessed on 2017-12-18.