羽裂鳞毛蕨 yu lie lin mao jue

Dryopteris subintegriloba Serizawa.

Rhizome ascending, ca. 3 cm in diam., densely covered with scales. Fronds caespitose. Stipes dark brown at base and stramineous upward, 30-40 cm, ca. 3 mm in diam., black and densely covered with scales at base; scales black or dark brown, lanceolate, 1-1.5 cm × 1-1.5 mm; scales smaller or stipe subglabrous upward. Lamina ovate-lanceolate, 35-40 × 20-25 cm, bipinnate. Pinnae 10-12 pairs, opposite or subopposite below, alternate above, deltoid-lanceolate, 12-15 × 3-4 cm, stalked. Pinnules 10-12 pairs, lanceolate, 2-3 × ca. 1 cm, widest at base, up to 1.5 cm wide, cordate and stalked, pinnatifid or pinnatipartite, obtuse or acute at apex. Segments obtuse at apex, or occasionally with an acute apical tooth. Veins pinnate or forked, visible abaxially. Lamina herbaceous, dark green adaxially, yellowish green abaxially, subglabrous adaxially, abaxial surface of pinna rachis and costa densely covered with black or dark brown bullate scales. Sori medial; indusia dark brown, entire.

Tropical or subtropical forests; 700-1100 m (in Taiwan). Guangdong, Guangxi, Hainan, Taiwan, Yunnan [Vietnam].