• Cladonia portentosa (Dufour) Coem.
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Cladonia portentosa
© Robert Thompson
Cladonia portentosa
© Robert Thompson
Cladonia portentosa
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The richly branched white-grey to grey-green thallus of this lichen forms loosely-compact tufts several centimetres in diameter. The ‘reindeer lichen’ branch tips have no preferred orientation so point in all directions. It has the pliability of a bathroom sponge when wet but becomes brittle when dry. It is common among moorland vegetation, frequently attaching to pockets of soil on outcrops and boulders in upland areas.

Key characteristics

  • Uniformly white-grey or grey-green throughout
  • Branch tips spread in all directions.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Cladonia portentosa (Dufour) Coem.. [In] LichenIreland. Accessed on 2018-08-20.