滇南带唇兰 dian nan dai chun lan

Pseudobulbs close or slightly spaced, cylindric-ovoid, 2.5-6.5 × 0.3-0.6 cm, ± covered with membranous tubular sheaths. Petiole 7-8 cm, slender; leaf blade oblong, 18-20 × 5-5.5 cm, 3-veined, base truncate or suborbicular, apex acute. Inflorescence erect, much longer than leaves, laxly few flowered; rachis pale purplish brown; floral bracts narrowly ovate-lanceolate, 3-5 mm. Flowers suberect; sepals and petals pale purplish brown with deep purple spots, lateral lobes of lip white, tinged with pale purplish brown, mid-lobe white, anther cap green; pedicel and ovary shorter than floral bracts. Dorsal sepal narrowly oblong, ca. 15 × 2 mm, 3-veined, slightly obtuse; lateral sepals narrowly falcate-oblong, ca. 15 × 2 mm, base adnate to column foot forming a short mentum. Petals narrowly falcate-oblong, ca. 15 × 2.5 mm, 3-veined, acute; lip elliptic in outline, ca. 1.2 cm, 3-lobed; lateral lobes erect, narrowly triangular, ca. 7 mm wide when flattened, acute; mid-lobe suborbicular, ca. 5 mm wide, apex rounded and emarginate; disk with 5 lamellae. Column ca. 7 mm; foot ca. 1 mm. Fl. May. 2n = 40.

Damp places on wooded slopes; 1900-2100 m. SE Xizang, W to SE Yunnan [NE India, Myanmar].