长瓣钗子股 chang ban chai zi gu

Stems often pendulous, 34-90 cm, 4-5 mm in diam., internodes 3-4 cm. Leaves secund, 14-26 cm × ca. 3 mm. Inflorescences erect, arising from lower part or near base of stem, 1-2 cm, few flowered; floral bracts broadly ovate-triangular, ca. 2 mm, fleshy. Flowers slightly fleshy, whitish, lip dark purple; pedicel and ovary ca. 8 mm. Dorsal sepal ovate, ca. 7 × 3 mm, concave, obtuse; lateral sepals similar to dorsal sepal, ca. 8 × 3 mm, dorsally carinate and becoming winged at apex. Petals linear, 8-11 × 1.5-1.7 mm, obtuse; lip ca. 7 mm, with a distinct boundary between epichile and hypochile; hypochile lateral lobes ca. 4 × 4 mm; epichile broadly ovate-triangular, ca. 4 × 5 mm, adaxially with several papillate longitudinal ridges, apex obtuse. Column ca. 4 mm. Fl. Apr-Jun.

Epiphytic on tree trunks in dense forests; 300-1100 m. S and SE Yunnan [Bhutan, India (NE and Orissa), Laos, Thailand, Vietnam].