Plants up to 80 cm tall. Rhizome erect, stout, densely clothed with lanceolate, entire, ferruginous or dark brown scales. Fronds caespitose; stipe stramineous, ca. 35 cm, ca. 4 mm in diam., base densely scaly; scales dark brown, lanceolate or linear-lanceolate, spiny-dentate, with capillary apex; lamina ovate-lanceolate, ca. 40 × 20 cm, bipinnatisect, base not narrowed, apex acuminate; pinnae ca. 18 pairs, alternate, contiguous, middle pinnae lanceolate, ca. 10 cm, widest at base, ca. 1.5 cm wide, shortly stalked, apex abruptly acuminate; segments ca. 10 pairs, slightly oblique, margin subentire or sparsely incised, apex rounded, sparsely deltoid-dentate; pinnae ca. 12 × 3 cm, widest at middle, gradually narrowed toward base to 1.8-2 cm wide. Lamina papery; rachis sparsely clothed with linear-lanceolate, brown, basally fimbriate scales, costae clothed with linear, brown scales; lateral veins pinnate, forked, obscure adaxially, with distinct hydathodes terminating apex, raised abaxially. Sori 3 or 4 pairs on each segment, between costa and margin; indusia brown, orbicular-reniform, caducous.
Home