Lathagrium (Collema) auriforme

Lathagrium auriforme has a dark green or brown thallus which is quite gelatinous and swollen when wet, usually covered in globular isidia. It rarely produces apothecia. It is locally frequent on the natural limestone cliffs of South Gower, steel slag fields on the coastal plain and is often encountered along forest roads, where it occurs on the calcareous gravel that accumulates at the edges.

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