Order: Verrucariales       Family: Verrucariaceae Species: Bagliettoa parmigera s. lat., (Bagliettoa baldensis, Verrucaria baldensis) Most material previously recorded as Bagliettoa baldensis now belongs in Bagliettoa parmigera s. lat. N.B: Records for Bagliettoa baldensis s. str. are restricted to those confirmed from sequence data Uncracked matt white or pale grey thallus with narrow dark prothallus. Abundant small, almost immersed perithecia which leave small pits in thallus when they decay. Ostioles with 3 to 6 radiating cracks (20x lens). Host to Opegrapha rupestris Common, widespread throughout Ireland on hard limestone rocks and memorials and on mortar. Chemical reactions negative.

Bagliettoa parmigera s lat (Verrucaria baldensis). On limestone rocks. The Burren, W Ireland. BLS Burren meeting April 2009