nb6642's picture

Lichen

Observed: 25th September 2012 By: nb6642
S159 Neighbourhood Nature - current student
DSCF1918
Description:
Identifications

Caution: Do NOT use iSpot to identify fungi to eat!

Some fungi are very poisonous so a mistaken ID could have serious consequences.

  • Black crustose (Black tar lichen) (Verrucaria sp.)
    Confidence: It's likely to be this, but I can't be certain.
Species interactions

No interactions present.

Comments

hfraser02026's picture

I'm not convinced that this

I'm not convinced that this is lichen. I studied geology at university and this looks like the kind of fossilised organic matter that is very common on the big grained sandstones found up and down the British and Irish coasts. These are formed on wide flat beaches millions of years ago where streams and rivers run into the sea, the heavy organic matter being deposited as the river loses energy. Subsequent layers of sand would then have been deposited on top and squashed it flat onto the rock surface. Just a thought- doesn't look like a lichen to me!