Plants 10-25 cm tall. Rhizomes creeping, 2-2.5 mm in diam., densely scaly, persistent only at apex and near phyllopodia; scales bicolored, deep brown with brownish to nearly colorless margins, lanceolate, 2.5-4 × 0.8-1.5 mm, basifixed, margins erose, apex shortly acuminate; middle lumina nearly isodiametric, transparent. Fronds 0.5-1.5 cm apart; stipe ± deep brown, 0.5-1.5 cm, hard and smooth; lamina pale green when fresh, abaxially grayish brown, adaxially deep brown when dried, narrowly lanceolate, 18-30 × 1-2.5 cm, widest at or below middle, thinly leathery, with scales orbicular or narrowly lanceolate, lumina brown, hyaline, base cuneate, decurrent, margin slightly revolute, apex shortly acuminate; costa raised on both sides, veinlets obscure. Sori on distal half of lamina, closer to margin, orbicular, 2-3 mm in diam.; paraphyses brown, orbicular, 0.3-0.5 mm in diam.; lumina small, thick-walled, transparent.
Home