
Black Tar Lichen
      Hydropunctaria maura
    - on granite /  in splash zone 2
  
Black Tar Lichen
      Hydropunctaria maura
- on granite /  in splash zone 3
Black Tar Lichen
      Hydropunctaria maura
- on granite /  in splash zone 4
Black Tar Lichen
      Hydropunctaria maura
- habitat / background and foreground 1
Black Tar Lichen
      Hydropunctaria maura
-  forming a line on the 
distant rock outcrop 1
Images taken just above mean high water mark at Porth Nanven, Cot Valley near St. Just, Penwith; and at Marazion and Perranuthnoe, Cornwall. Hydropunctaria maura is a very widespread species along the coastline.
Scientific and European Names:
    Hydropunctaria maura, Verrucaria maura, Zwarte Zeestippelkorst.