新平假毛蕨 xin ping jia mao jue

Plants to 110 cm tall. Rhizomes ascending, brown. Fronds clustered; stipes ca. 54 cm, deep stramineous, with fine hairs; lamina lanceolate, ca. 57 × 22 cm, slightly tapering to bases, pinnate-pinnatifid, acuminate-pinnatifid at apices; lateral pinnae ca. 25 pairs, alternate, spreading, shortly stalked, proximal 3 pairs of pinnae abruptly reduced into black aerophores; middle pinnae narrowly lanceolate, ca. 14 × 1.4 cm, slightly tapering to bases, acuminate at apices; lowest several pinnae clearly shortened, pinnatifid; segments ca. 24 pairs, ca. 9 × 5 mm, entire, acute at apices. Veins clearly raised on both sides, veinlets 9 pairs per segment, proximal pair arising from base of costules, basiscopic veinlet reaching margin of sinus, acroscopic one reaching bottom of sinus. Laminae green when dry, papery, rachises with sparse short setae abaxially, adaxially with dense short setae, costae and veins with sparse short setae abaxially, costae with sparse appressed short hairs adaxially, veinlets with 1 or 2 setae, intercostal areas acicular hairy abaxially of and glabrous adaxially, setaceous along margins. Sori attached on middle of veinlets, 6 or 7 pairs per segment; indusia large, brown, membranous, hairy, persistent.

● Shade of mossy forests on mountain summits; ca. 2300 m. Yunnan (Xinping).