Description: This common, crustose, mosaic-forming lichen can be found on shaded, smooth-barked trees such as hazel and holly. It forms a thin, orange-brown thallus with scattered discs covered by a conspicuous pink to scarlet pruina (a thin crystalline layer — like an icing sugar topping on a cake). The pink pruina fades with age. On trees in moist, sheltered valleys or damp hilly districts mostly.

Key Identification Features:

• Growing on smooth, shaded bark often forming bark mosaics with other lichens
• Pink to red pruinose discs are dotted around the thallus.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Coniocarpon cinnabarinum at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Coniocarpon cinnabarinum at iNaturalist World Species Observations database.