Order: Lecanorales       Family: Parmeliaceae Species: Xanthoparmelia conspersa Growth type foliose. Photos: On rock near lake. Gougane Barra, Cork, SW Ireland. Thallus yellow-grey or bluish-grey, lobes adpressed, slightly broader at ends. Under surface black with short, simple rhizines. Isidia usually abundant, variable in form. Apothecia are occasional, discs red-brown, margins thin, crenulate, +/- isidiate. Occurs on exposed siliceous rocks, roof tiles and walls in inland and coastal sites. Common and appears to be increasing. Medulla: K+ yellow-orange, C-, KC+ orange-red, P+ orange, UV-

     




Xanthoparmelia conspersa. Gougane Barra, Co. Cork. February 2009