Lindsaeaceae

Indusium opening outwards towards the margin, attached at the base (Fig. 16). Pinnules cuneate, flabellate or dimidiate. Lindsaeaceae
Fronds 1-pinnate, linear, dimorphic; the fertile fronds narrower and taller than the sterile fronds
Fronds 1-pinnate-pinnatifid at the base, 2-pinnate or 2-pinnate-pinnatifid