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Black tar lichen or tar?

Observed: 20th June 2012 By: Ginny B
S159 Neighbourhood Nature - course complete
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Black tar lichen or tar?
P1030291
P1030389_rocks-east-beach
Description:

The surface of many of the rocks here have a covering of matt black between the low tide mark to the edge of the splash zone where it becomes more spotted. I can't see much in the way of form and so wonder if this is just tar?

Identifications

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

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

Species interactions

No interactions present.

Species with which Verrucaria maura interacts