Peristylus mannii (H. G. Reichenbach) Mukerjee, Notes Roy. Bot. Gard. Edinburgh. 21: 153. 1953.纤茎阔蕊兰 xian jing kuo rui lan

Coeloglossum mannii H. G. Reichenbach, Linnaea 41: 54. 1877; Habenaria duclouxii Rolfe; H. gracillima J. D. Hooker; H. spiranthiformis Ames & Schlechter; Herminium mannii (H. G. Reichenbach) Tang & F. T. Wang; H. spiranthiforme (Ames & Schlechter) Tang & F. T. Wang; H. yuanum Tang & F. T. Wang; Peristylus gracillimus (J. D. Hooker) Kraenzlin; Platanthera mannii (H. G. Reichenbach) Schlechter.

Plants slender, 15-40 cm tall. Tubers subglobose to oblong-elliptic, 1-1.5 × 0.4-1 cm. Stem with 2 tubular sheaths at base, 2-4-leaved. Leaves clustered at base of stem, linear, 3.5-15 × 0.2-0.4 cm, apex acuminate. Inflorescence 14-37 cm; peduncle cylindric, slender; sterile bracts 1-5, lanceolate, to 20 mm; rachis 4-20 cm, sublaxly few to many flowered; floral bracts ovate-lanceolate, 2-4 mm, shorter than ovary, apex acuminate. Flowers horizontal, green to pale yellowish green; ovary 3-5 mm including pedicel. Dorsal sepal oblong-ovate, concave, ca. 2.5 × 0.8 mm, 1-veined, apex obtuse; lateral sepals weakly spreading, ligulate to narrowly oblong, ca. 2.5 × 0.8 mm, 1-veined, apex obtuse. Petals loosely connivent with dorsal sepal and forming a hood, narrowly ovate-lanceolate, 2-2.5 × ca. 0.8 mm, slightly fleshy above middle, 2-veined, apex obtuse; lip spreading, narrowly ovate, 2-2.5 × ca. 0.8 mm, ecallose, 3-lobed near middle; lateral lobes diverging at an acute angle from axis of lip, narrowly oblong, 0.8-1.2 mm; mid-lobe oblong, slightly attenuate, 1-1.5 mm, slightly broader than lateral lobes, 3-veined; spur pendulous, scrotiform, 1-1.5 mm, apex obtuse. Column ca. 0.5 mm; viscidia ellipsoid. Fl. Sep-Oct.

Open forests, thickets, grassy slopes; 1700-2900 m. S Sichuan, C and W Yunnan [India].