LichenIreland
  • Tephromela atra (Huds.) Hafellner ex Kalb
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Tephromela atra
© Robert Thompson
Tephromela atra
© Robert Thompson
Tephromela atra
© Robert Thompson
Tephromela atra
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(Map updated: 11 August 2009)
Tephromela atra
© Robert Thompson
Tephromela atra
© Robert Thompson
Tephromela atra
© Robert Thompson
 

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.

 

A distinctive crustose lichen with a thick, pale grey, warted thallus. Conspicuous large black apothecia with pale margins are abundant. This is a common species of the 'Grey Zone' but also is found on siliceous rocks inland. Superficially similar to Lecidella subincongrua, but that species has a pale ochre thallus and the convex apothecia have black margins.

Key characteristics

  • Thick, warted, pale-grey thallus.
  • Conspicuous black apothecia with pale margins.

Original text submitted by Michael Simms