• Lecanora campestris (Schaer.) Hue
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Lecanora campestris
© Mike Simms
Lecanora campestris
© Mike Simms
Lecanora campestris
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(Map updated: 11 August 2009)

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Familiar on calcareous walls and stone; it occurs as a grey, warted-areolate crust forming large circular patches limited by a thin white margin. Fruits are neat, round discs, pale brown to dark-red brown, abundantly produced, except towards the edge. Look for it on concrete, brick and mortar, especially in gardens and churchyards; also on nutrient-enriched siliceous rock.

Key characteristics

  • Grey areolate thallus without green or yellow tints
  • Fruits abundant, red-brown to dark brown.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Lecanora campestris (Schaer.) Hue. [In] LichenIreland. Accessed on 2018-07-23.