Description:
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Rhizome creeping, thin, glabrous or nearly so. Fronds spaced 15 cm apart, erect. Stipe 7–30 mm long, glabrous, not winged or winged near apex. Lamina 2-pinnatifid, narrowly lanceolate-oblong in outline, 2.5–20 x 1–2.1 cm; pinnae strongly developed acroscopically, angled forward, basal pinnae usually reduced; ultimate segments linear in outline, apices rounded, margin serrate, to 1.3 mm wide, glabrous on both surfaces. Sori usually 1 per pinna, on the innermost acroscopic lobe, 1.8–2 mm long, 1.5–1.7 mm in diameter; soral valves entire, glabrous. |