Costa Rica Ferns

Adiantum-sp.-Costa-Rica.jpg

My wife and I recently had the privilege of visiting Sri Lanka a country which we have wanted to get to for many years and indeed this trip was originally booked for 2020. In the meantime I have been diagnosed with early stage Vascular Dementia / Vascular Parkinsonism. In addition I have severe psoriatic arthritis which is increasingly limiting my mobility. When I was 21 I set myself a target to photograph 25,000 species of identified living organisms in my lifetime. I am up to 23,600 but I am now 73 and hope that I can still achieve my objective. (The total includes 461 species of Pteridophytes).
I only managed to photograph three fern species in Costa Rica. (Most of the ferns that I saw were not fertile or only had very immature sori. This was the case with the Adiantum but nonetheless I hope it may be recognisable)

I would be very grateful if anyone might possibly be able to suggest a species identification of these three species. (I have been a member of BPS for many years).

Many thanks
Alan Outen

1. Adiantum sp ? – Villa Lapas, Puntarenas Prov, Costa Rica, 16.05.22