• Nephroma laevigatum Ach.
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Nephroma laevigatum
© Mike Simms
Nephroma laevigatum
© Mike Simms
Nephroma laevigatum
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This iconic oceanic species is relatively frequent in well-established deciduous woodland, hazel coppice and willow swamp in the west. It is a shiny, leafy, intermediate brown to grey-brown lichen with a characteristic wrinkling to the lobes and lobe ends where the discs develop only on the undersides. The internal layer (the medulla) is yellow, reacting K + purple.

Key characteristics

  • When fertile, the brown fruits that are curled under the lobe ends of the lichen are immediately characteristic
  • Nephroma parile rarely supports discs and is sorediate with small granules on the lobe margins and scattered over the surface that are the same colour as the thallus.

Original text submitted by Simon Davey

 Simms, M. J., (2016). Nephroma laevigatum Ach.. [In] LichenIreland. Accessed on 2018-07-21.