黑鳞剑蕨 hei lin jian jue

Rhizome shortly to moderately creeping, densely scaly throughout; scales dark brown or black, linear-lanceolate, ca. 5 × 2 mm, margin entire. Fronds closely spaced or distant, monomorphic; stipe short or frond subsessile, pale green, narrowly winged to very base, densely scaly at base; lamina abaxially yellow-green, adaxially deep green, linear-elliptic, 10-15(-25) × 1-2.5 cm, widest at middle, thickly papery, both surfaces glabrous, base decurrent, apex acuminate or acute; costa not distinctly raised on both surfaces; veins hidden. Sori oblong, oblique, closer to frond margin than costa, superficial, paraphyses absent. Spores globose-trilete.

Epilithic on moss-covered rocks or epiphytic in evergreen broad-leaved forests; 600-2200 m. Chongqing, Guangxi, Guizhou, Sichuan, SE Yunnan [N Vietnam].