Melanelixia glabratula

A common brown  lichen with a lobed thallus, which grows on the bark of broad-leaved, deciduous trees. Peg-like isidia are produced towards the centre of the thallus. Unlike Melanelixia fuliginosa it does not grow on rock. It is widespread and common in West Glamorgan.

Listed under Parmelia glabratula ssp. glabratula by Alan Orange in Flora of Glamorgan (Wade et al, 1994).