LichenIreland
  • Lecanora polytropa (Hoffm.) Rabenh.
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Lecanora polytropa
© Mike Simms
Lecanora polytropa
© Mike Simms
Lecanora polytropa
© Mike Simms
Lecanora polytropa
Click on map to open large map in new window
(Map updated: 11 August 2009)
Lecanora polytropa
© Mike Simms
Lecanora polytropa
© Mike Simms
 

Click here to view an interactive map of the Northern Ireland dataset as currently collated by CEDaR.
The map is generated through the NBN Gateway using their Interactive Mapping Tool.

 

This tiny, though abundant, grey-green crustose lichen grows widely on siliceous rocks and walls. It forms very small (0.5-2.0cm diam.) areolate thalli covered with yellow-green to pale brown discs that can coalesce to form larger patches. Common: rocks and walls, also on worked timber in remoter areas and along the coast.

Key characteristics

  • Small patches, with scattered or crowded yellow-green discs
  • Discs never emerald green on a thick crust.

Original text submitted by Vince J. Giavarini