From a pot plant

Growing on a Butia palm

From spore Exchange

From spore Exchange

Sown January 2019.

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