长足兰 chang zu lan

Thrixspermum leopardinum E. C. Parish & H. G. Reichenbach, Trans. Linn. Soc. London 30: 145. 1874; Sarcochilus leopardinus (E. C. Parish & H. G. Reichenbach) J. D. Hooker.

Stems 2-10 cm, 4-5 mm in diam., rigid, 3-6-leaved. Leaf blade suboblong, 9.5-14 × 1.5-2 cm, thinly leathery, acute. Racemes 2-6, 1-2 cm, to 10-flowered; peduncle and rachis dilated distally, glabrous, longitudinally ribbed; floral bracts ovate-triangular, ca. 1 mm. Flowers slightly fleshy, yellow with purplish brown spots, lip white abaxially, spur white; pedicel and ovary 5-6 mm, ovary strongly 3-keeled. Dorsal sepal subovate-lanceolate, ca. 4 × 2 mm, obtuse; lateral sepals broadly ovate-triangular, ca. 4 × 4 mm, obtuse. Petals oblong, ca. 4 × 1.5 mm, obtuse; lip movable, 3-lobed; lateral lobes erect, oblong, ca. 3 × 1 mm, obtuse-rounded; mid-lobe ovate-triangular, ca. 1.5 × 1 mm, fleshy, base with 2 calli on either side, apex obtuse; spur conic-oblong, ca. 4 × 2 mm, inside densely hairy, apex obtuse. Column ca. 2 mm, thick, foot ca. 3 mm. Fl. May.

Epiphytic on tree trunks in open forests or at forest margins; 900-1300 m. S Yunnan [India, Malay Archipelago (Borneo), Myanmar, Philippines, Thailand, Vietnam].