Caudex short, suberect; stipe to 65 cm long, dark, glossy, bearing rather thin dark scales 10 × 1 mm near the base only; lamina to 55 cm long with 5 pairs of free and 2 pairs of adnate pinnae below a short apical lamina; basal pinnae to 27 cm long with stalks 2 cm long, bearing 3 pairs of well-spaced free and 1 or 2 pairs adnate pinnules; basal basiscopic pinnule 13 × 5.5 cm bearing 2 pairs free and 1 or 2 pairs adnate tertiary leaflets, its apical lamina very deeply lobed, the lobes obliquely lobulate; largest tertiary leaflet 2.5 × 1.6 cm, very deeply lobed; basal acroscopic pinnule 5 × 2.3 cm; basal basiscopic lobes of distal pinnules on all pinnae shortly decurrent, their veins arising from the pinna-rachis; veins all free; hairs on upper surface of costae dense and thick, scattered ones more than 1 mm long, similar long hairs also present on and between veins; hairs on lower surface sparse and shorter; sori supramedial at ends of veins in lobules of pinna-lobes; indusia thin, persistent, more than 1 mm diameter when young.
Home