ray fern

…cells; 2 genera (Schizaea and Actinostachys) with about 30 species, mostly tropical. Family Lygodiaceae Rhizomes long-creeping, hairy; leaves indeterminate in growth, climbing and often twining, the primary divisions alternate along the elongating stemlike rachis; sporangia often in 2 rows, densely spaced along specialized slender lobes of the ultimate segments, each…

The 16 species of ray ferns of the genus Actinostachys have leaf blades that are reduced to a very narrow strip on either side of the midrib.