• Bilimbia sabuletorum (Schreb.) Arnold
Bilimbia sabuletorum
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This crustose, lime-loving species should be searched for among moss on shady, mortared walls as well as on basic-barked trees and short limestone turf. It has a coarsely granular thallus with large, convex discs that vary in colour from beige to pink to black. It is common in suitable habitats throughout Ireland.

Key characteristics

  • The granular thallus, habitat, and convex pink-red discs should suffice to identify this species
  • It is best to first find it on a mossy wall where it is least likely to be confused with other species.

Original text submitted by Simon Davey

 Simms, M. J., (2016). Bilimbia sabuletorum (Schreb.) Arnold. [In] LichenIreland. Accessed on 2018-07-23.