LichenIreland
  • Arthonia cinnabarina (DC.) Wallr.
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Arthonia cinnabarina
© Robert Thompson
Arthonia cinnabarina
© Mike Simms
Arthonia cinnabarina
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This common, crustose, mosaic-forming lichen can be found on shaded, smooth-barked trees such as hazel and holly. It forms a thin, orange-brown thallus with scattered discs covered by a conspicuous pink to scarlet pruina (a thin crystalline layer like an icing sugar topping on a cake). The pink pruina fades with age. On trees in moist, sheltered valleys or damp hilly districts mostly.

Key characteristics

  • Growing on smooth, shaded bark often forming bark mosaics with other lichens
  • Pink to red pruinose discs are dotted around the thallus.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Arthonia cinnabarina (DC.) Wallr.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=15516 Accessed on 2017-12-12.