Stipe at least 30 cm, nearly black, lower part covered with fine soft light brown hairs, longest 25 mm, all of same texture; pinnae to 100 cm long, pinna-rachis beneath very dark, minutely warty, more or less glabrescent, with vestiges of short appressed hairs which are mostly lax and pale brown, with some firm and reddish (the latter sometimes with pale bases); pinnules to 140 mm long, costa hairy beneath as pinna-rachis, dark at base and paler distally; tertiary leaflets to 20 mm long, fertile ones deeply lobed, lobes to 5 pairs, each lobe of largest leaflets with a pinnate vein bearing a sorus on its basal acroscopic branch, of smaller leaflets sometimes with simple vein bearing a sorus; sterile tertiary leaflets lobed almost to costule at base, less deeply upwards, each lobe of larger ones containing a pinnately branched vein, edges of lobes almost entire.
In forest, most specimens at 1000-1800 m; one (Pulle 939, Mt Hellwig) from 2500 m, a small plant but agreeing in hairiness.
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