jonmortin's picture


Observed: 30th April 2013 By: jonmortin
Bristol Regional Environmental Records Centre
jonmortin’s reputation in Fungi and Lichensjonmortin’s reputation in Fungi and Lichensjonmortin’s reputation in Fungi and Lichens

Grey foliose lichen with brown underside, growing on hawthorn.


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.


Paul Roberts's picture


Not a lot of this is in focus but at least one lobe (mid right) appears to have marginal cilia. Is this consistent with H. revoluta? Not being critical just curious.

synan's picture


Those are rhizines originating from the lower surface. H. revoluta is rhizinate to the margins, whereas Parmotrema spp. have a marginal zone with no rhizines, but sometimes have cilia. Apparently H. revoluta can, rarely, have sparse marginal cilia too, but these aren't them.


AlanS's picture

Underside colour

Good to see that we are provided with a note of the colour of the underside. It being brown is useful confirmation that this is H. revoluta and not H. afrorevoluta (black underside except near the margins).