georgi1313's picture

Crustose lichen

Observed: 23rd June 2012 By: georgi1313
S159 Neighbourhood Nature - course complete
georgi1313’s reputation in Fungi and Lichens
grey, crustose lichen with black fruiting bodies

grey, crustose lichen with black fruiting bodies (spores)


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

  • crustose lichen
    Confidence: It's likely to be this, but I can't be certain.
Species interactions

No interactions present.


georgi1313's picture

crustose lichen

crustose lichen

pf339's picture

Lecanora gangaleoides?

Looks similar to some Lecanora species. Your lichen has a crustose type thallus and a white outside edge (prothallus). With the black discs of the apothecia (fruiting bodies) you might check the 'Search iSpot' panel for images of Lecanora gangaleoides to compare pictures with your lichen.

georgi1313's picture

Lecanora gangaleoides

I though it could be Tephromela atra or Aspicilia caesiocinerea, but after checking Lecanora gangaleoides it seems to be more similar.

Thanks phil

AlanS's picture


The thallus surface looks more like that of Tephromela atra than Lecanora gangaleoides, which has a surface more like congealed porridge.

But as we cannot check the colour of the lower medulla (orange in L. gangaleoides) or in a cross-section of the apothecia, it is difficult to be sure.

Another lichen, apparently a Lecanora, is growing into the thallus.