筒距槽舌兰 tong ju cao she lan

Stems ca. 2 cm. Leaves several, nearly basal; blade subterete, 30-58 cm × ca. 4 mm, fleshy. Inflorescence ca. 5 cm, 3-5-flowered; rachis purple; floral bracts ovate, ca. 2 mm. Flowers white, lateral lobes of lip yellow, spotted with purple; pedicel and ovary ca. 3.3 cm. Dorsal sepal oblong, ca. 20 × 7 mm, obtuse; lateral sepals oblique, elliptic, ca. 23 × 10 mm, base clawed and ± twisted, apex obtuse. Petals elliptic-oblong, ca. 28 × 10 mm, base twisted and clawed, apex obtuse; lip spurred, 3-lobed; lateral lobes erect, unequally bilobulate; mid-lobe oblong-elliptic, ca. 18 × 15 mm, with 3-5 basal lamellae; spur cylindric, 8-10 mm. Column ca. 6 mm. Fl. Oct-Dec. 2n = 38*.

Epiphytic on tree trunks in broad-leaved evergreen forests; 800-1200 m. SW Guangxi, SE Yunnan [N Vietnam].