Adiantum

Maidenhair ferns are one of more distinctive groups of ferns to grow, with the often fan-shaped pinnae (leaves) are borne on thin, lustrous, black stems. There are over 200 species, across the world, with most unfortunately not hardy for a UK garden. However if you have a sheltered garden, or grow them in pots, this will expand your choice. Otherwise grow in shadier, cooler spots, with reasonable moisture.