Adiantaceae
False indusium covering and bearing the sorus, consisting of a sharply reflexed, flap formed by the lamina(Fig. 17). Rhachises and stipes black or dark brown Adiantum Sori in deep notches between the lobes of the ultimate leaf-segments. Rhizome usually short and tufted Sori in shallow grooves at the tips of the lobes of the ultimate frond-segments, not in the notches between the lobes, Rhizome long-creeping