Actiniopteris dimorpha Pic.Serm.

Rhizome c. 5 mm in diameter, set with rhizome-scales up to 4.5 mm long, some concolorous pale brown, others with a black central stripe and pale borders. Fronds densely tufted, erect, coriaceous, dimorphous (sterile fronds half the length of fertile fronds); stipe glaucous, mostly glabrous, becoming castaneous and bearing a few linear, concolorous pale brown scales basally, up to 190 mm long; lamina flabellate, repeatedly dichotomously divided into up to 16 linear glaucous segments, declinate when desiccated, margins usually reflexed, fertile frond segments entire, sterile frond segments with up to 7 teeth at apex, glabrous ventrally but a few persistent, brown, linear, hair-pointed scales dorsally.