Fungi Outer Hebrides

Family: Verrucariaceae

Hydropunctaria maura (Wahlenb.) C. Keller, Gueidan & Thüs

Tar Lichen

Type: Crustose

Found on rocks as a black, thin crust on the upper shore and just into the splash zone. The surface is crazed and the small apothecia are semi-immersed. Very common

Smith, C.W. et al. editors (2009) The Lichens of Great Britain and Irelandd
Dobson, F.S. (2018) Lichens: an Illustrated Guide to the British and Irish Species