观光鳞毛蕨 guan guang lin mao jue

Dryopteris wuyuanensis Ching.

Rhizome ascending or erect, ca. 4 cm in diam., apex densely covered with scales. Fronds caespitose. Stipes stramineous, 40-50 cm, 4-5 mm in diam., densely scaly; scales on base of stipe and on apex of rhizome brown, lanceolate, 1.5-2 cm × 1-2 mm; scales on middle of stipe ovate, 5-6 × 3-4 mm, serrulate, caudate. Lamina ovate-lanceolate, 50-70 × 35-45 cm, bipinnate. Pinnae 15-18 pairs, alternate, lanceolate, 15-20 × 4-5 cm, stalked. Pinnules 10-15 pairs, lanceolate, 2-3 × 1-1.5 cm, pinnatisect below, pinnatifid above, apex acute or obtuse. Segments obtuse, with an acute apical tooth. Veins pinnate, obscure adaxially, visible abaxially. Lamina herbaceous, dark green and glabrous adaxially, yellowish green and scaly abaxially; scales on rachis ovate; pinna rachis densely covered with broadly lanceolate scales and bullate scales; scales on costa hairlike. Sori in 1 row on either side of costa, nearer to margin than to costa, orbicular; indusia small, reniform, fugacious.

● Subtropical broad-leaved evergreen forests. Anhui, Jiangxi, Zhejiang.