Similar to Thelocarpon epibolum var. epibolum, but with larger ascospores; (6-) 8-10 (-12) × (2-) 2.5-3 μm in size.
Not evaluated by Woods & Coppins (2012); there are few records but the status of this taxon should be clarified.
Recorded on dead and moribund thalli of Peltigera leucophlebia and Solorina saccata.
Currently known only from the Scottish Highlands and northern Scotland; reported from VC88 Mid Perths, VC96 E Inverness, VC107 E Sutherland and VC112 Shetland.