Japan Flora: Rhizomes short, erect; fronds 4 or 5 in a tuft; stipes slender, to 17 cm. long, 2 mm. across, stramineous, sparsely scaly at base, smooth above; scales membranous, ovate-oblong, about 2 mm. long, acumi- nate, entire, brown; blades ovate, 20-26 cm. long, to 16 cm. wide, simply pinnate, the rachis slightly flexuous; pinnae thinly herbaceous, 2 or 3 pairs, rarely 1 pair, alike, oblong-lanceolate, 10-14 cm. long, 3-3.5 cm. wide, acuminate，rounded to rounded-cuneate at base, regularly aristate-toothed, glabrous on both sides, the petiolules to 6 mm. long; veinlets forked, slender, extending to the teeth, the anterior branch soriferous; sori 1-1.6 cm. long, arising near the base of the branch, not reaching the margin; indusia membranous, grayish while young, brownish with age.                 

Kyushu (Fukuregi in Amakusa 1st in Higo Prov.); very rare. s. China.