Description: A reddish-orange crustose lichen with a granular or warted thallus and only indistinctly lobed edges. Apothecia often abundant towards the centre of the thallus. Characteristic of the 'Orange Zone' in more exposed habitats than Caloplaca thallincola.

Key Identification Features:

• Reddish-orange granular thallus
• Abundant apothecia towards centre of thallus
• Exclusively marine.

Original text submitted by Michael J. Simms

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

iNaturalist: Flavoplaca marina at iNaturalist World Species Observations database.