Hymenophyllum tunbrigense (L.) Smith
This fern is growing low down amongst the granite rocks, about 600ft above sea level. The stone to the centre left is densely covered with the fern.
The filmy fern is growing with Polypodium vulgare
The rock face here is vertical but the fern is most abundant on the horizontal tops of the lower granite rocks.
The margins of the sorus have irregular teeth.
[Hymenophyllum] [H.tunbrigense] [H. wilsonii] [Hymenophyllum site]