折唇羊耳蒜 zhe chun yang er suan

Leptorkis bistriata (E. C. Parish & H. G. Reichenbach) Kuntze; Liparis saltucola Kerr.

Herbs, epiphytic or lithophytic. Pseudobulbs densely arranged, cylindric, 9-12 cm × 5-7 mm. Leaves 2, subelliptic or elliptic-lanceolate, 6.5-9 × 2.6-3.4 cm, somewhat leathery, base contracted into a short petiole, articulate, apex acuminate. Inflorescence 18-24 cm; peduncle subterete, nearly wingless; rachis more than 20-flowered; floral bracts lanceolate, 3-4 mm. Flowers pale green; pedicel and ovary ca. 1 cm. Sepals nearly narrowly oblong, 5-5.5 × ca. 1.5 mm, 3-veined, margin revolute, apex obtuse. Petals linear, 4.5-5 × ca. 0.5 mm, 1-veined, apex obtuse; lip deflexed above middle, suboblong, 4.5-5 × ca. 2.5 mm, with a ± bilobed basal callus, apex subtruncate or ± erose, emarginate. Column slightly arcuate, ca. 3.5 mm, base dilated and thick, upper part with narrow wings. Capsule obovoid-ellipsoid, 8-10 × 5-6 mm; fruiting pedicel 8-10 mm. Fl. Jun-Jul, fr. Aug-Sep. 2n = 32.

On trees or rocks in forests or along roadsides; 800-1800 m. SE Xizang, S and SW Yunnan [NE India, Myanmar, N Thailand].