柳叶节肢蕨 liu ye jie zhi jue

Rhizome ca. 10 mm in diam., densely scaly; scales brown, ovate at base, 5-7 mm, margin shortly ciliate, apex long caudate. Stipe dark stramineous, 25-30 cm, ca. 3 mm in diam., glabrous; lamina imparipinnate, 40-50 × 15-20 cm; pinnae usually 5 or 6 pairs, alternate, shortly stalked, ascending, ovate-lanceolate, 15-20 × 3-5 cm, base attenuate into stalk, cartilaginous margin entire, apex long caudate; lamina papery, abaxially light green or glaucous, adaxially dark green. Sori mostly orbicular, ca. 1.5 mm in diam., mostly in 2 rows along costa in 1 series between veins, rarely those nearest margin in confluent pairs.

● Epiphytic on tree trunks; 1600-1900 m. Xizang.