Light-brown foliose lichen

Light-brown foliose lichen

Observation - Light-brown foliose lichen . Description: Light-brown foliose lichen growing on the top of a siliceous boulder on Dartmoor. Outer lobes shiny, inner thallus more wrinkled. Clumps of isidia away from edge of thallus. Possibly Xanthoparmelia loxodes. (Parmelia omphalodes showing within thallus in

Light-brown foliose lichen growing on the top of a siliceous boulder on Dartmoor. Outer lobes shiny, inner thallus more wrinkled. Clumps of isidia away from edge of thallus. Possibly Xanthoparmelia loxodes.
(Parmelia omphalodes showing within thallus in places)