Parmelia lichens for id..

[Rambling Rob]

..at least I think that's what they are. On a bough of old willow in a wet part of Firestone Copse, IoW, yesterday and I think there are two species of Parmelia here..



I wonder if the larger yellow-green species is Parmelia caperata (a gardening book tells me caperata means wrinkled and that fits, anyway).

And I think there is a smaller greyish species mixed up with it, apparently with black hair-like structures near the edges, just visible right of centre in this crop..



..which would tally with Parmelia perlata.

Would anyone agree on these as possibilities?

Thanks for looking,
Rob