LichenIreland
  • Psilolechia clavulifera (Nyl.) Coppins
Psilolechia clavulifera
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(Map updated: 11 August 2009)
 

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This lichen overgrows those dry soils of woodland banks where small tree roots have become exposed due to ground movements, windthrow or storms. Small, green-grey, granular patches can emerge after a few wet winters and then become covered in tiny blue-black spots which are the Micarea-sized discs. The tiny club-shaped spores are simple, 47 x 12m. In Ireland, the species is rare.

Key characteristics

  • Thallus tiny, green-grey overgrowing soil-covered tree roots exposed by movement or storm damage
  • Discs: blue-black spots; spores simple, club-shaped.

Original text submitted by Vince J. Giavarini