Species: Protoparmelia badia var. cinerascensIdentification uncertain, needs confirming or correcting
Growth type crustose.
Photos: On coastal wall. Courtmacsherry, Cork, SW Ireland.
Very variable. Thallus +/- glossy, thin or coarsely warted, pale fawn to dark brown, rarely with a dark prothallus. Immersed or sessile apothecia are usually abundant, the discs glossy dark brown with paler crenulate or contorted margins.
Ascus 8-spored, spores simple with pointed apices, 8-13 x 3-5 Ám.
Well-lit hard, siliceous rocks in mountainous and coastal areas. Can tolerate some nutrient enrichment. Cortex KC+ pink (in section), UV+ white.
P. badia var. cinerascens has a greyish rather than a brown thallus
Courtmacsherry, March 2009