Arthopyrenia analepta

An common, but unobtrusive species, with an inconspicuous/absent thallus, the only visible clue generally being a scattering of small arthonioid fruiting bodies. Recently recorded on the smooth bark of mature specimens of mature ornamental specimens of Sorbus aria agg. at Pen-caer-fenny rugby fields, Crofty. 

Listed under Arthopyrenia lapponina by Alan Orange in Flora of Glamorgan (Wade et al, 1994).