Order: Lecanorales       Family: Parmeliaceae Species: Melanelixia fuliginosa Growth type foliose. Photos: On granite boulder. Black Head, the Burren, Ireland. BLS Burren meeting 2009 Dark green-brown to blackish lobes, adpressed, wrinkled. The centre of the thallus becomes +/- obscured by small, glossy isidia. Apothecia occasional, red-brown, margins often becoming isidiate. Found on siliceous rocks and gravestones, rare on trees. Cortex K-. Medulla K+/- purple, C+ red, KC+ red, P-, UV- Similar: Melanelixia glabratula. Mainly occurs on trees.

Above: Fertile Melanelixia fuliginosa. Ballingeary, May 2009