Grape fern:
Botyrichium dissectum, of the family of Succulent ferns.
On the left - with the sporing body - a fertile fern, the right a sterile fern.
Bracken Fern:
Pteridium aquilinum, of the genus Pteridium.
Oak Fern:
Gymnocarpium dryopteris, of the family Polypodiaceae. Found in a peat-filled bog.