LichenIreland
  • Coccotrema citrinescens P.James & Coppins
Coccotrema citrinescens
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(Map updated: 11 August 2009)

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Look for this crustose species on sheltered rocks and outcrops (especially basalt) near the coast. The green-grey, K+ bright golden-yellow thallus can become rather thick, uneven and verrucose, supporting soralia that are scattered and greenish-yellow. To most observers, it is the greenish-yellow colour which draws the attention. In Ireland, the species has been recorded from the north and west, only a short distance from the sea.

Key characteristics

  • Thick, verrucose thallus covered with greenish-yellow soralia; K+ bright golden yellow, C-
  • On vertical rock faces near the coast, for example, basalt.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Coccotrema citrinescens P.James & Coppins. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=39618 Accessed on 2017-12-12.