Order: Peltigerales Family: Pannariaceae
Species: Degelia cyanoloma
Photos: On Hazel. The Burren, Co. Clare, W Ireland
Previously regarded as a variant of Degelia plumbea, recently restored to specific rank. (The Lichenologist, Volume 42, January 2010)
Large pale grey to bluish-grey thallus with prominent black or greyish hypothallus. Lobe ends with curved tranverse ridges and fine radiating striatulation near margins. Squamules and isidia absent, apothecia frequent, discs dark red-brown to blackish.
Found on mossy trees and rocks in humid, undisturbed woodlands in the west of Ireland. Chemical reactions negative.
Degelia cyanoloma April 2009