Stems erect, apices bearing scales; scales lustrous yellow to brownish, concolored, 0.5--1 mm, margins stiffly ciliate. Leaves densely fasciculate, 3--7 cm. Petiole 2--7 × 0.5 mm, densely hairy; hairs dark reddish or brownish, 0.8--1 mm. Blade linear, pinnatifid ca. 2/3 to rachis, narrowed and short-decurrent proximally, 3--5 mm wide; rachises and blade tissue on both sides with crowded, spreading setae like those of petiole or longer. Segments mostly in 20--30 pairs, oblique-spreading, oblong, 0.8--1.2 mm wide with entire margins. Veins concealed abaxially, unbranched, or fertile segments sometimes with single acroscopic branch, veins ending in hydathodes on adaxial surface. Sori round, 1 per segment, arising near base of acroscopic veinlet; sporangia glabrous.
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