Japan Flora: Rhizomes short, ascending, covered with the basal stubs of old stipes; stipes few, 20-60 cm. long, brown, scaly; scales spreading, the lower lanceolate, 10-15 mm. long, entire, black-brown, lustrous, the upper ones often deflexed, broadly linear, 2-7 mm. long, dilated at base; blades bipinnate, broadly ovate, 25-40 cm. long, 25-30 cm. wide, abruptly long- acuminate, mosdy 5-angled; scales on rachis rather numerous, subulate-linear, black-brown, saccate at base; lowest pinnae lanceolate to broadly so, broadest at base, caudate-acuminate, short-petiolulate to subsessile, the lowest subdeltoid, with a very broad posterior side, the petiolule 1-1.5 cm. long; pinnules and ultimate segments narrowly ovate-oblong or lanceolate, 1.5-4 cm. long, 7-15 mm. wide, obtuse to subacute, auriculate on anterior side and obliquely cuneate at base, with short awn­tipped teeth, subsessile or adnate and slightly decurrent at base, the lower ones pinnately lobed to parted, the lowest posterior pinnules of the lowest pinnae caudate-acuminate, pinnate, 10-15 cm. long, 2.5-3 cm. wide; sori in 2 series; indusia orbicular-reniform, about 1 mm. across, entire. 

Honshu (Totomi Prov. and Kinki Distr. westw.), Kyushu. Formosa.