察隅假毛蕨 cha yu jia mao jue

Plants 1-1.5 m tall. Rhizomes short and decumbent, subglabrous. Fronds clustered; stipes 10-30 cm, stramineous, with sparse brown scales proximally, distally shortly setaceous and easily deciduous when brushed; laminae oblong-lanceolate, 90-120 × 20-30 cm, proximal pairs of pinnae reduced and hastate or auriculate, pinnatifid-acuminate at apices; middle normal pinnae ca. 22 pairs, spreading, alternate, linear-lanceolate, bases not tapering, truncate, sessile or extremely shortly stalked, pinnatifid nearly to costae, apices acuminate; segments ca. 30 pairs, obliquely spreading, subligulate, 8-9 × ca. 3 mm, slightly bent, entire, obtuse-pointed at apices. Veins evident, costules evident and raised on both sides, 9 or 10 pairs of veinlets per segment, simple, proximal pair arising above base of costules, acroscopic veinlet reaching bottom of sinus, basiscopic one reaching margin above sinus. Laminae green or dark green when dry, papery; abaxially with dense acicular hairs along rachises, costae, costules, and on intercostal areas, densely setaceous along costal grooves adaxially, hairs sparser on veins. Sori orbicular, attached on middle of veinlets, ca. 9 pairs per segment; indusia orbicular-reniform, brown, with acicular hairs, persistent.

● Evergreen broad-leaved forests, streamsides; 2000-2200 m. SE Xizang (Zayü), Yunnan (Gongshan).