hadriana's picture


Observed: 9th February 2011 By: hadriana
S159 Neighbourhood Nature - course complete

White crustose lichen with black dots. Two different examples but the same thing?


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.


Fenwickfield's picture

Just a comment to help

It would help if you can put area found,type of rock ie siliceous or if on wood habitat,also close ups are a great help to get correct ID.


gardener's picture

Two different lichen species

The two photos show two different lichen species - what were they on?

Most lichen are fairly specific to the type of substrate (rock, wood, trees etc) so this, as Fenwickfield says above, is very important to add.

hadriana's picture

identification of lichen

Thanks for your help.I'll try and be more specific in future.
LH picture is on horizontal surface of red brick wall. RH picture is on stone on drystone wall. Both in garden. Don't know what kind of rock, sorry.

gardener's picture

Thanks for the information -

Thanks for the information - that rules out any possibility of Lecidella elaeochroma as it is found on trees and timber.

AlanS's picture

Possible IDs

I am not going to add a positive ID for either species, though neither is a Lecidella, irrespective of whether they were on wood or rock.

The right-hand photo might well be Clauzadea monticola in damp state. It usually has a white/grey thallus, or the thallus immersed in the rock, and black apothecia, but when damp the thallus is more green, and the apothecia become dark reddish brown and very convex.

The left hand lichen doesn't show enough detail, but I suspect it is Lecanora campestris in damp state.


debbieC's picture

oops, hit the 'I agree'

oops, hit the 'I agree' button by mistake. sorry.


hadriana's picture

Possible IDs

Thanks to all for your help.