Thallus thin but finely granular, yellow-green usually growing on sheltered acid rocks, in rock clefts and in shaded narrow crevices between. It is never as brightly coloured as Psilolechia lucida and often grows below steep boulders and cliffs in woodland; widespread.

Key characteristics

• Thallus pale yellow-green, on sheltered acid rock in humid woodland
• Testing KC+ yellow.

Original text submitted by Vince J. Giavarini