Thallus of usually pendant, broad, sparingly divided, strap-like branches, sometimes reaching several cm, grey-green to grey, said to become brown-black in very exposed sites, soredia absent; apothecia frequent, laminar or marginal. Widespread and locally common on tree trunks and branches, though very sensitive to sulphur dioxide pollution.

On tree trunks and branches, though very sensitive to sulphur dioxide pollution.

All year round.

Widespread but sometimes local in Britain.

Infrequent or under recorded in Leicestershire and Rutland.