路南鳞毛蕨 lu nan lin mao jue

Aspidium lunanense Christ, Bull. Herb. Boissier 6: 966. 1898; Dryopteris semipinnata Ching.

Plants up to 80 cm tall. Rhizome erect, short, densely clothed with lanceolate, brownish black scales. Fronds caespitose; stipe ca. 32 cm, ca. 5 mm in diam. at base, rachis densely clothed with linear-lanceolate, black scales throughout; lamina narrowly ovate, ca. 48 cm, ca. 30 cm wide at middle part, once pinnate-pinnatifid, narrowed toward base, apex acuminate; pinnae ca. 18 pairs, lanceolate, ca. 16 × 2.4 cm, base cuneate, subsessile, apex caudate-acuminate; ultimate segments ca. 7 × 5 mm, apex sharply dentate. Lamina herbaceous, glabrous; costa clothed with lanceolate, black scales abaxially; veins pinnate, simple, distal basal veins not reaching sinus. Sori abaxial on veins, in 1 row on each side of costa; indusia brown, membranous, readily deciduous.

Forests; ca. 900 m. Gansu (Wenxian), Guizhou, Sichuan, Yunnan [Japan].