Order: Pyrenulales Family: Monoblastiaceae
Species: Acrocordia salweyi
Photos: On limestone. Black Head, the Burren, Ireland.
BLS meeting April 2009
Smooth or granular, thin, immersed, whitish to pale brown-grey thallus. The large, +/- flat-topped apothecia with a thick involucrellum are one quarter to half immersed.
Chemical reactions negative.
Occurs on soft, damp calcareous rocks and old mortar.
Similar: A. conoidea. Thallus pinkish. Found on hard limestone.
Acrocordia salweyi. Black Head, the Burren. April 2009