Description: This widely distributed plant of siliceous rocks and churchyard memorials resembles Melanelia fuliginosa var. glabratula, but differs in its dark brown to almost black-brown colour, tightly packed, shiny isidia and preference for acid rock rather than bark.

Key Identification Features:

• Forms dark brown to almost black patches on acid rock; rare on bark
• Small shiny, stick-like isidia pack the centre of the thallus tightly, more so than in related species.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Melanelixia fuliginosa at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Melanelixia fuliginosa at iNaturalist World Species Observations database.