(Hoffm.) Hoffm.
Listed by Alan Orange in Flora of Glamorgan (Wade et al, 1994).
Multiple clumps were recorded on well-weathered bark on an old oak trunk at Cwmnantlleici Farm on 18-Sep-24, with associates including Cladonia coniocraea, Lepraria incana sens. lat., Normandina pulchella, Parmelia saxatilis and Parmotrema perlatum.