consider the shuttle cock fern too Matteuccia struthiopteris, it loves damp shade. I have failed several times to get it to work in my garden I suspect I am too alkaline and dry. I've seen 2 of the ones you mention in gardens next to brooks so they should be ideal for you.

Thelypteris paulustris is happy in boggy soil but prefers full sun, so may not cope with dappled shade. [According to the RHS]

Brilliant as ever, thanks Seaburn. I will avoid the Thelypteris then. My soil I guess is quite acidic with the clay and leaf litter. I have matteucia somewhere, not made an impact yet, maybe I need to be patient.

Really it is always damp here, that is why ferns grow so well in Scotland. Mine just don't dry out. I have to say smaller plants manage to grow from cracks in the wall so they can manage being dry at times.

Interesting thanks Linda

Don't forget hart's tongue fern, asplenium scolopendrium.
It would contrast with all the finer foliage of the others, and I find it stands dry spells as well

Hart's Tongue Fern - Unique in every way. Thrives in damp shade. This one is definitely worth consideration.

Thanks Andrew, Bathgate

Check the size at maturity of the Osmundia. It needs lots of space.
I'm growing some Harts Tongue ferns from spores! Its a long slow business but I want lots. (Hundreds grow wild here but its illegal to dig them up...) I think there's a cristate one in cultivation, with a little frilly crest on the end of the frond?

There is Stera and I have/had one, its a handsome fern. I must go and see if I can find it.

Lovely!

Thanks Stera, I like the harts tongue fern too, I’ve found a couple seeded and appeared as gifts, good luck with your growing from spores.