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30. Lepisorus megasorus (C. Christensen) Ching, Bull. Fan Mem. Inst. Biol. 4: 79. 1933.
长柄瓦韦 chang bing wa wei
Polypodium megasorum C. Christensen, Index Filic. 544. 1906, based on Polypodium macrosorum Baker, J. Bot. 23: 106. 1885, not Fée (1850); P. hypochrysum Hayata.
Rhizome long creeping, 2-4 mm in diam., usually naked except for scales at apex and near phyllopodia; scales brown with paler margins, ovate-lanceolate, 2-4 × 1-1.5 mm, basifixed, broad base contrasting with long acuminate apex, margin minutely denticulate; lumina subrhomboid to rectangular. Fronds 0.5-2 cm apart; stipe straw-colored to deep brown, 5-25 cm, 1-2 mm in diam.; lamina lanceolate, 15-40 × 1.5-4 cm, widest toward base, leathery or softly leathery, with scales orbicular or lanceolate; lumina brown and hyaline; veinlets obscure. Sori midway between costa and margins, 3-3.5 mm in diam.; paraphyses 0.5-0.8 mm in diam.
● On tree trunks in forests; 500-1900 m. Taiwan.
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