LichenIreland
  • Pertusaria pertusa (Weigel) Tuck.
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Pertusaria pertusa
© Robert Thompson
Pertusaria pertusa
© Robert Thompson
Pertusaria pertusa
© Robert Thompson
Pertusaria pertusa
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(Map updated: 11 August 2009)
Pertusaria pertusa
© Robert Thompson
Pertusaria pertusa
© Mike Simms
Pertusaria pertusa
© Mike Simms
 

This crustose lichen has a conspicuous zoned margin and thick, rough, greenish-grey thallus. The fruiting discs are hidden in pea-shaped, lumpy warts (several per wart) dotted with little openings the size of a pinprick. It is common on tree bark but is also occasionally found on rock.

Key characteristics

  • Greenish-grey with a zoned edge
  • The pea-shaped warts are dotted with holes (disc openings) as if pricked with a pin.

Original text submitted by Vince J. Giavarini

 
 Simms, M. J., (2016). Pertusaria pertusa (Weigel) Tuck.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=19407 Accessed on 2021-10-26.