中华瓦韦 zhong hua wa wei

Neurodium sinense Christ, Bull. Herb. Boissier 6: 880. 1898; Lemmaphyllum sinense (Christ) C. Christensen; Lepisorus vittarioides Ching; Paltonium sinense (Christ) C. Christensen; Pleopeltis sinensis (Christ) Copeland; Polypodium neurodioides C. Christensen.

Plants 5-25 cm tall. Rhizomes creeping, 1.5-2 mm in diam., densely scaly; scales brown, iridescent, lanceolate or ovate-lanceolate, 1-1.3 × 0.3-0.45 mm, margin dentate, apex attenuate but not filiform, central part with ± opaque band, marginal lumina large and transparent. Fronds 0.2-2 cm apart; stipe straw-colored, 1-3 cm, 1-1.5 mm in diam.; lamina pale brown, pale grayish, or greenish, lanceolate, 15-30 × (0.2-)0.7-2 cm, widest 1/3-1/2 from base, papery or thickly papery when dried, both surfaces glabrous or with scattered orbicular or lanceolate scales, base attenuate, decurrent, apex long caudate; costa raised, veinlets obscure or slightly visible. Sori linear, on abruptly attenuate distal 1/3(-1/2) of lamina, close to margin, linear, sometimes lower part interrupted; paraphyses orbicular, sometimes slightly stellate, 2.5-3.5 mm in diam., transparent, lumina irregular.

On moss-covered tree trunks or rocks in evergreen broad-leaved forests; 1200-1900(-3600) m. SE Yunnan [Bhutan, Myanmar, Thailand, Vietnam].

Lepisorus sinensis is a very distinct species that can be easily recognized by the linear sori. Lepisorus vittarioides is only known from the type specimen, which Ching cited when he described L. sinensis, and it differs from L. sinensis by the narrow lamina. We found there were no other differences between these two species. "Vittaria henryi" is a nomen nudum cited in the protologue of L. vittarioides and was not therefore validly published (Melbourne Code, Art. 38.1(a)).