庐山假毛蕨 lu shan jia mao jue

Plants 40-50 cm tall. Rhizomes decumbent, with sparse scales. Fronds approximate; stipes 13-18 cm, bases sparsely brown scaly, distally glabrous, deep stramineous; laminae lanceolate, 20-32 × 10-13 cm, tapering proximally, pinnate-pinnatifid, pinnatifid-acuminate at apices; proximal 2 pairs of pinnae reduced into auricles; middle normal pinnae 16-18 pairs, proximal ones subopposite, distal ones alternate, obliquely spreading, sessile, narrowly lanceolate, 6.7-7.5 × ca. 1.2 cm, bases not narrowed, truncate, pinnatifid nearly to costae, apices long acuminate; segments ca. 17 pairs, obliquely spreading, lanceolate, 4-5 × ca. 7 mm, entire, obtuse-pointed at apices. Veins evident, costules raised on both sides, ca. 6 pairs of veinlets per segment. Laminae dark green when dry, papery; abaxially with sparse setae and fine short hairs along rachises, costae, and veins, glabrous on intercostal areas, adaxially densely setaceous along costal grooves, hairs sparser along veins but mixed with few glands. Sori orbicular, attached on middle of veinlets; indusia orbicular-reniform, brown, glandular and with 1 or 2 fine hairs, persistent.

● Streamsides in forests; ca. 600 m. Fujian, Jiangxi (Jinggangshan, Lushan).