毛脉假毛蕨 mao mai jia mao jue

Plants 90-110 cm tall. Rhizomes decumbent, woody. Fronds approximate; stipes ca. 40 cm, stramineous, subglabrous; laminae lanceolate, 40-70 × 15-20 cm, pinnate-pinnatifid, pinnatifid-acuminate at apices; proximal 3 pairs of pinnae reduced and hastate; middle normal pinnae ca. 20 pairs, obliquely spreading, alternate, sessile, ca. 14 × 2 cm, slightly tapering to bases, pinnatifid nearly to costae, pinnatifid and long caudate at apices; segments ca. 25 pairs, sublanceolate, ca. 9 × 3 mm, entire, rounded-obtuse at apices. Veins visible, costules raised on both sides, 9-11 pairs of veinlets per segment, oblique distally, proximal pair arising above base of costules, acroscopic veinlet reaching bottom of sinus, basiscopic one reaching margin above sinus. Laminae dark green when dry, papery; abaxially with long acicular hairs along rachises, costae, veins, and on intercostal areas, adaxially with dense setae along costal grooves, costules finely hairy adaxially, on veinlets and along margins with 1 or 2 setae. Sori orbicular, attached on middle of veinlets; indusia orbicular-reniform, brown, occasionally finely hairy, persistent.

● On rocks by streams; 2200-2500 m. Yunnan (Gongshan).