Those would probably be the florist's or leatherleaf fern, Rumohra adiantiformis. The spore is probably entirely shed, but you can still try. Use a sterilized potting soil or similar substance in a sealed container that will admit light (you can just put glass or plastic over a garden pot, too), keeping the soil moist, and gently stroke over the backs of the fronds over this. If there's any spore left, it should start showing green in about a month or two. These will not grow into new ferns, but into gametophytes (alternation of generations). Keep the gametophytes moist and they will eventually grow new ferns.