云南曲唇兰 yun nan qu chun lan

Rhizome 2-3 mm in diam., densely covered with brown sheaths. Pseudobulbs tufted, borne 3-6 mm apart, dark green to brown when dry, narrowly ovoid to ovoid, 1.2-2 cm × 4-7 mm, thinly wrinkled, base conspicuously contracted, apex 2-leaved. Leaf blade narrowly oblong or oblong-lanceolate, 25-45 × 4-8 mm, papery, acute or obtuse; petiole 2-4 mm. Inflorescence 2-3 cm, 1- or 2-flowered, base embraced by several scarious sheaths; floral bracts ovate, 3-4 mm, scarious. Flowers white; pedicel and ovary 1.2-1.4 cm. Dorsal sepal narrowly ovate, 11-14 × 3.5-4.5 mm, 5-veined, acuminate; lateral sepals oblong-lanceolate, 11-14 × 2-2.5 mm, dorsally carinate, 3-veined. Petals similar to lateral sepals, but not carinate; lip oblong-spatulate, 11-14 × 3-4 mm, sometimes with slightly thickened veins, attenuate toward base, clawed at base, entire, margin slightly crisped, apex rounded, without lamellae and other appendages. Column 5-7 mm, winged. Fl. Nov-Dec.

Epiphytic on trees or lithophytic on rocks in forests; 1200-1800 m. SE Yunnan [N Vietnam].