Dryopteris blanfordii

Description

Plants ca. 90 cm tall. Rhizome obliquely ascending or creeping, stout, clothed with oblong-lanceolate, brown scales. Fronds caespitose; stipe pale brown, ca. 30 cm, ca. 4.5 mm in diam., grooved, densely scaly; scales brown, dark brown, or black, oblong, serrate, apex long acuminate, scales sparser and smaller upward, lanceolate to linear; lamina ovate-oblong or deltoid-ovate, ca. 65 × 30 cm, widest at middle, tripinnatipartite, base slightly narrowed, apex acuminate; pinnae ca. 15 pairs, alternate, spreading, lanceolate or oblong-lanceolate, shortly stalked, apex long acuminate, middle and lower pinnae longer, 11-15 × 2.5-4 cm, slightly narrowed toward base; pinnules approximate, basal basiscopic pinnule shortened, lanceolate or oblong-lanceolate, apex acute; other pinnules oblong, 1.5-2 × 6-8 mm, slightly oblique at base, apex sharply serrate; segments oblong, apex with or without 2 or 3 sharp teeth. Lamina herbaceous to thinly papery, with linear, brown scales on abaxial side of costae and costules; veins pinnate, forked, obscure adaxially, visible abaxially. Sori in 1 row on each side of costule; indusia orbicular-reniform, membranous, margin entire.