Barnmead's picture

Foliose lichen on wooden fence

Observed: 20th November 2009 By: Barnmead
S159 Neighbourhood Nature - course complete
Barnmead’s reputation in Fungi and LichensBarnmead’s reputation in Fungi and Lichens
lichens on wood 005
lichens on wood 008

Foliose lichen with quite large flattened, greyish lobes, dark brown lower surface and net-like white lines over the top surface. On sloping east-facing wooden fence rail.


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

Species interactions

No interactions present.


Barnmead's picture


This specimen seemed to have smaller lobes than what I thought was another one close by. I wondered if it was P. saxatilis rather than sulcata.


gardener's picture

They are very similar but P.

They are very similar but P. sulcata develops soralia on the pseudocyphellae (white marks on lobes) whereas P. saxatalis develops isidia.
They are both very variable, K+ orange-red, P+ orange and the lobes of both can vary in size.

smah6's picture

Parmelia saxatilis

This looks like Parmelia saxatilis rather than sulcata as saxatilis has more of a roughened surface whereas sulcata usually has smoother lobes