Lindsaeaceae
Indusium opening outwards towards the margin, attached at the base (Fig. 16). Pinnules cuneate, flabellate or dimidiate. Lindsaeaceae
Fronds 1-pinnate-pinnatifid at the base, 2-pinnate or 2-pinnate-pinnatifid
Fronds dimorphic, sometimes 1-pinnate-pinnatifid at the base. Stipe (except near the base) and rhachis yellowish Lindsaea dimorpha
Fronds not dimorphic, 1-pinnate-pinnatifid or 2-pinnate to 2-pinnate-pinnatifid