LichenIreland
  • Lecanora sulphurea (Hoffm.) Ach.
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Lecanora sulphurea
© Mike Simms
Lecanora sulphurea
© Mike Simms
Lecanora sulphurea
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This yellow-green crustose species will grow on nutrient-enriched siliceous rocks and walls inland as well as near the sea, often parasitizing other lichens. It has a cracked, warted, rather thick thallus with olive yellow discs (to 1.5mm diam.), that can darken to pink or brown, sometimes appearing glazed over. It is common in suitable habitats throughout Ireland.

Key characteristics

  • The thick, cracked, yellowish thallus lacking soralia helps to distinguish it from Lecanora orosthea which is a similar colour, but is always sorediate (dusty)
  • The dark nature of some of the older fruits is distinctive.

Original text submitted by Simon Davey

 Simms, M. J., (2016). Lecanora sulphurea (Hoffm.) Ach.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=18727 Accessed on 2017-10-18.