藤蕨 teng jue

Stenochlaena cochinchinensis (Fée) Underwood.

Plants to 3 m or longer. Rhizome stramineous, 1-1.2 cm in diam., apex densely covered with scales; scales dark brown, lanceolate, 5-6 × 1-1.5 mm, base peltate, margin sparsely toothed, apex acuminate. Fronds leathery, both surfaces glabrous; stipe brown, 10-20 cm, grooved adaxially, scaly; juvenile lamina simple, lanceolate, 18-22 × 4.5-5 cm, margin entire, apex caudate-acuminate. Mature lamina pinnate, with terminal pinna elliptic, 35-40 × 15-20 cm; lateral pinnae ca. 10 pairs, 1.5-2 cm apart, lanceolate, oblique, 12-20 × 3-5 cm, with short stalk ca. 3 mm, cuneate and nearly symmetrical at base, margin entire, abruptly narrowed to caudate apex 2-3 cm; lateral pinnae articulate to rachis, terminal pinna not articulate; veins obvious on both surfaces, free, simple or forked, oblique. Fertile pinnae linear, 10-15 × 0.3-0.5 cm, basal pinnae with stalk 8-10 mm. Sori acrostichoid. 2n = 164.

Climbing on tree trunks in dense forests; ca. 300 m. SE Yunnan [Cambodia, Indonesia, Malaysia, Vietnam].