阔羽对囊蕨 kuo yu dui nang jue

Basionym: Athyriopsis pachyphylla Ching, Acta Phytotax. Sin. 9: 66. 1964.

Rhizome slender, creeping, apex like base of stipe, with sparse pale brown, lanceolate, membranous scales; fronds separate. Fertile frond up to 40 cm; stipe brown at base, upward pale green, 12-17 cm, ca. 1.2 mm in diam., base with sparse pale brown, curly short nodose hairs, upper part subglabrous; lamina narrowly deltoid, 17-25 × 7-12 cm, apex acuminate; free pinnae 2 or 3 pairs, slightly ascending, sessile, oblong-lanceolate, apex subacute or obtuse; basal pinnae not reduced or slightly so, 5-6 × 2.5-3 cm, base slightly narrowed, basiscopic base cuneate with reduced pinna lobes, acroscopic base truncate, pinnatilobed 1/2-2/3; lobes 5-7 pairs, ligulate-oblong, 4-6 × 5-8 mm, margin sparsely crenate or irregularly shallowly repand, entire, apex rounded or subtruncate; veins prominent, thin, ascending, pinnate per lobes; veinlets 3-5 pairs, simple, rarely forked. Lamina thinly herbaceous or submembranous when dry, green; rachis and costa with sparse pale brown curly short hairs. Sori 2-4 pairs per lobe, ascending, linear, 3-4 mm, often double on acroscopic basal veinlets of upper pinna lobes; indusia gray, thinly membranous, lacerate, persistent.

● Forests; ca. 800 m. NW Hubei, Hunan.