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© Mike Simms

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(Map updated: 11 August 2009)

This common epiphyte forms small patches of granular-scurvy thallus on smooth-barked twigs and wooden fence railings. The scattered discs are slightly glazed over, yellow to pinkish and with a distinctive yellow crumpled margin. It is not powdery (sorediate). It is widespread in Ireland, but not frequent in the south-east.

Key characteristics

• Non-sorediate, small, sparse granular-scurvy crusts, green-yellow discs with conspicuous margin
• Lecanora symmicta, is often very similar, but has more crowded discs, which frequently have an excluded margin.

Original text submitted by Simon Davey