vl527's picture

Lichen 1

Observed: 8th July 2011 By: vl527
Lichen 1

Encrusting "crusty" lichen, green thallus, yellow/green apothecia


No identification made yet.

Species interactions

No interactions present.


AlanS's picture


I am afraid I don't have a name for this. There are a huge number of crustose lichens and it may well be a species I don't know, or one that cannot/should not be named from photographs.

However, for a chance of identification, especially of crustose species, photographs have to be high definition to show the often minute surface features on which identification depends, and I am afraid this photograph doesn't have that definition. Focus must be pin sharp and there must be absolutely no camera movement. Sorry.


AlanS's picture

Lecanora polytropa ??

It occurs to me that this could be Lecanora polytropa, which can fit "green thallus, yellow/green apothecia", and is common on nutrient-poor rocks. But this can be no more than a guess, imo.