汇生瓦韦 hui sheng wa wei

Lepisorus iridescens Ching & Y. X. Lin.

Plants 10-25 cm tall. Rhizomes long and creeping, 2-4 mm in diam., densely scaly; scales brown to deep brown, iridescent, lanceolate, 2-4 × 0.7-1 mm, almost transparent, margins serrate, apex acuminate; lumina oblong. Fronds up to 1 cm apart; stipe straw-colored or brown, 0.3-5 cm; lamina brown, grayish green or pale green when dried, narrowly lanceolate, (15-)20-30 × 1-2.5 cm, widest nearly 1/3-1/2 from base, distal up to 1/3 abruptly attenuate and fertile, thinly leathery when dried, both surfaces glabrous or sparsely scaly, base cuneate, decurrent, margin flatly straight or slightly revolute, apex long caudate; costa raised on both sides, veinlets obscure. Sori restricted to narrowed apex, medial or slightly closer to costa, elliptic to shortly linear at beginning, confluent into linear interrupted coenosorus when mature; paraphyses deep brown, stellate, 0.35-0.5 mm in diam., scalelike, margins brown and spiny; lumina large.

● On tree trunks in evergreen broad-leaved forests; 2200-2600 m. Yunnan.

A distinctive species that can be distinguished by the linear coenosori, the overlapping, iridescent, almost transparent rhizome scales, and the stellate paraphyses.