Hello this fern is growing out of a sandstone cliff down a sheltered alley in Hastings. No direct sunlight. Photo taken from fire escape, I couldn’t Get closer than this would need very long ladder or scaffolding. I can’t find anything similar in identification pictures. The fronds are about 3 feet long.

Hi, I’ve grown this attractive fern from spores and it is quite unusual in that it spreads by distinctive black wiry rhizomes. I would love to know what species it is. Hopefully the 4 pictures attached will help you to identify it for me.
Many thanks
Jonny

I bought this fern from a garden centre in Titchfield, Havant
It does not have fronds bearing sori but it has a green scaly rhizome

I bought this fern from a garden centre in Titchfield, Havant
It does not have fronds bearing sori
It looks so perfect that it looks artificial

I bought this fern from a garden centre in Titchfield, Havant
It does not have fronds bearing sori but it has a beautiful venation

I bought this fern from a garden centre in Titchfield, Havant
It is clearly dimorphic

A curious dimorphic fern I bought at a plant store in San Francisco, with no information available from the grower. Scans of both the low and high leaf forms attached, front and back, with one enlargement apparently showing sori. The sample of the tall form is approx. 7″.

Family: Thelypteridaceae ?
Genus: Thelypteris ??
Origin: maybe Uganda
Rhizomatous species, petiole more than 1/3 of the lamina

Can anybody identify this Tectaria?

I purchased this fern recently as I liked its form. It is I believe mislabelled . The label states that it is Dryopteris Cristata Angustata but it seems to be more akin to a Dryopteris Affinis cultivar. What do you think?