Order: Gyalectales       Family: Gyalectaceae Species: Gyalecta jenensis Growth type crustose. Photos: On limestone. Black Head, the Burren, W Ireland. BLS Burren meeting 2009 Thin light-grey thallus, often pink-tinged. Distinctive pale orange apothecia with thick notched margins are initially spherical. Found on damp, shaded limestone, also on old church walls. Chemical reactions negative. Similar: Gyalecta truncigena, found on basic-barked trees.

Gyalecta jenensis. BLS Burren meeting, April 2009