I have found several populations of this fern. It’s always growing on rocks and there are never larger Pecluma species in the same vicinity. I have not found fertile individuals. Is it Pecluma filicula?
A great day doing a comprehensive Asplenium septentrionale count together with @NatResWales staff. Some positive site actions have already been done, and a good discussion on a management plan to look after this very special site. @FernBPS @fossilplants #FernFriday @cofnod