锡金锯蕨 xi jin ju jue

Polypodium sikkimense Hieronymus, Hedwigia 44: 97. 1905; Ctenopteris sikkimensis (Hieronymus) C. Christensen & Tardieu; Grammitis sikkimensis (Hieronymus) Ching; Xiphopteris sikkimensis (Hieronymus) Copeland.

Stipe short, up to 1.5 cm, with frequent to dense hairs up to 1.6 mm. Lamina linear, 4-16 × 0.4-0.6 cm, base gradually shortened, apex obtuse or acute; pinnae horizontal or inclined, oblong, oblong-lanceolate, or oblong-oblanceolate, 2-3.5 × 0.8-1.8 mm, decurrent to neighboring pinnae, sometimes slightly falcate, entire or nearly so, obtuse, rounded, or rarely truncate at apex; rachis prominent on abaxial side, plane to slightly grooved on adaxial side, pale to dark brown on adaxial side, dark brown on abaxial side; hairs occasional to frequent on all parts of lamina, up to 1.8 mm. Sori orbicular, close to rachis.

Epiphytic or petrophytic; 2200-3600 m. Guangxi, Guizhou, Hunan, Sichuan, Xizang, Yunnan [Bhutan, N India, Nepal, Vietnam].