Epiphytic; rhizome erect, ± 1 cm diameter, covered with old stipe bases with greyish-brown, lanceolate-subulate, subentire scales up to 10x1.5 mm, composed of clear thin-walled cells, attenuate into a hair-like tip. Frond tufted, erect, not proliferous. Stipe matt-grey-green to brown, 5–30 cm long and 3 mm diameter, subglabrous, with a few scales towards the base similar to the rhizome scales. Lamina dark shiny green, herbaceous to coriaceous, 18–40x10–19 cm, oblong, erect, 1-pinnate; basal pinnae not reduced, terminal pinna similar to lateral ones. Pinnae in 2–9 sub-opposite pairs with a terminal pinna similar to the other pinnae, petiolulate, lanceolate to oblong, 8–14x1.8–2.5 cm, the terminal pinna 14–16x2.5–3.5 cm, acroscopic base cuneate and often parallel to the rachis, basiscopic base attenuate-cuneate, margin irregularly and shallowly undulate-crenate, attenuate to acuminate, glabrous; veins ending short of the margin. Rachis matt-purplish-brown, at first set with dark irregularly fimbriate scales up to 2 mm long, later becoming glabrous. Sori many, along the veins at 45° angle to costa, extending from near the costa to more than halfway to the margin, (4–)9–13 mm long; indusium membranous, entire, 0.5–0.8 mm wide. Fig. 6: 1–2, p. 37.
