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(Map updated: 11 August 2009)

This small non-sorediate foliose species forms crisp yellow-orange rosettes of horizontal lobes with small propagules (blastidia) along the margins. Colonies often merge through expansion. Discs are rare. On humid, well-illuminated, canopy twigs and branches; also spreading to stone. K+ orange. In Ireland, it occurs in the south and south-east.

Key characteristics

• Non-sorediate and leafy small yellow-orange rosettes; flattened lobes (K+ orange) with small propagules along the edges
• Humid sites favoured; Candelaria concolor is K-.

Original text submitted by Vince J. Giavarini