Dryopteris fern - but which one?

Dryopteris fern - but which one?

Observation - Dryopteris fern - but which one? - UK and Ireland. Description: I have tried three books and the internet, but still I'm not sure what this is. Thanks if you can help.

I have tried three books and the internet, but still I'm not sure what this is. Thanks if you can help.