Lichen with pink apothecia

Lichen with pink apothecia

Observation - Lichen with pink apothecia - UK and Ireland. Description: White leprose-like thallus growing near the bottom of vertical face of a siliceous sandstone window sill on north wall of church (lichen just above top of mortar in picture ii). Pink convex apothecia. Resolution in pictures (i) and (iii) just about shows

White leprose-like thallus growing near the bottom of vertical face of a siliceous sandstone window sill on north wall of church (lichen just above top of mortar in picture ii). Pink convex apothecia. Resolution in pictures (i) and (iii) just about shows complex structure of some of the apothecia. One area along window sill (picture i and just right of centre in picture ii) has light pink apothecia. Another area has darker, almost purple, apothecia that appear older (picture iii and left of centre in picture ii). Possibly Psilolechia leprosa.