Order: Lecanorales Family: Parmeliaceae
Species: Xanthoparmelia verruculifera
Photos: On rock. Barley Cove, Co. Cork, SW Ireland.
Large thallus, dull brown to dark blackish-brown lobes with coarse, clumped isidia that can form +/- contiguous patches. Underside of lobes black with simple rhizines. Apothecia with isidiate margins.
Usually coastal on well-lit, siliceous rocks, also inland on horizontal surfaces. Scattered distribution in Ireland but possibly under recorded. Medulla: K-, C+ pink-red, KC+/- pink, UV+ white.
Similar: Xanthoparmelia delisei and X. loxodes
Xanthoparmelia verruculifera June 2009