• Caloplaca marina (Wedd.) Zahlbr. ex Du Rietz
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Caloplaca marina
© Mike Simms
Caloplaca marina
© Mike Simms
Caloplaca marina
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(Map updated: 11 August 2009)

A reddish-orange crustose lichen with a granular or warted thallus and only indistinctly lobed edges. Apothecia often abundant towards the centre of the thallus. Characteristic of the 'Orange Zone' in more exposed habitats than Caloplaca thallincola.

Key characteristics

  • Reddish-orange granular thallus
  • Abundant apothecia towards centre of thallus
  • Exclusively marine.

Original text submitted by Michael Simms

 Simms, M. J., (2016). Caloplaca marina (Wedd.) Zahlbr. ex Du Rietz. [In] LichenIreland. Accessed on 2019-08-18.