LichenIreland
  • Lecanora poliophaea (Wahlenb.) Ach.
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Lecanora poliophaea
© Mike Simms
Lecanora poliophaea
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(Map updated: 11 August 2009)
 

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 species grows on rocky seashores lapped by unpolluted waters. The first thing to notice is the blue-grey, knotted-granular thallus mixed up with isidia consolidated into a whole, like pebble-dashed concrete left to set. Discs (to 1mm diam.) are common, orange-brown with a conspicuous, notched margin. Spot reactions are negative but its presence in the vicinity of nutrient-enriched rock is worth noting. Throughout Ireland but rarer in the south-east.

Key characteristics

  • Blue-grey thallus of knotted granules, set like concrete
  • Discs orange-brown with margins notched; rocky, nutrient-enriched seashores.

Original text submitted by Vince J. Giavarini