Smooth Potato Fern

Description

They are plants of terrestrial habits; With rhizome robust and fleshy, creeping to erect, with scales and immense stipules, also with fleshy roots; Monomorphic leaves, generally large; Petiole thickened, fleshy, articulated at the base, flaky; Sheet 2- or 3 -pinned, glabrous; Pinnacles with somewhat dark and swollen base, winged coasts, broad and discontinuous wing, present idioblasts; Sporangia arranged in 2 rows within compound structures (sinangios) located near the end of the nerves, each sporangium opens by a 2-valved incision in the shape of a clam with longitudinal opening, absent indus, monoletas spores.