小掌唇兰（植物分类学报）
Staurochilus loratus (Rolfe ex Downie) Seidenf. in Opera Bot. 95: 95, fig. 54. 1988; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 296. 1995; Z. H.Tsi, S. C. Chen et K. Mori, Wild Orch. China: 113. pl. 276. 1997; 中国兰花全书: 68. 1998. ——Ascochilus loratus Rolfe ex Downie in Kew Bull.: 407. 1925. ——Pteroceras loratus (Rolfe ex Downie) Seidenf. et Smitin., Orch. Thailand Prelimin. List. 4 (1): 534, fig. 394. 1963.
Epiphytic on tree trunks in forests; 700-1500 m. S Yunnan [Thailand].
|
| |
Stems ascending, 3-16 cm, 5-7 mm in diam., rigid, sometimes branching, internodes 5-7 mm. Leaves many, distichous; |
| |
leaf blade narrowly oblong, 10-16 × 0.9-1.8 cm, leathery, obtuse and slightly unequally bilobed. |
|
|
Inflorescences ascending, racemose, 1-5, 5-8 cm, laxly 3-6-flowered; peduncle slender, 1-1.5 mm in diam.; floral bracts triangular, ca. 2 mm, acute. Flowers opening widely, small, slightly fleshy, sepals and petals yellow with purplish brown spots, lip white; pedicel and ovary ca. 6 mm. Dorsal sepal subspatulate, ca. 5 × 2.5 mm, acute; lateral sepals obliquely obovate, ca. 5 × 3 mm, obtuse. Petals obliquely obovate, ca. 4.5 × 2.5 mm, obtuse; lip ca. 6 mm, fleshy, 3-lobed, base with a channeled, densely hairy claw ca. 2 mm; lateral lobes suboblong, ca. 2 × 1.5 mm; mid-lobe subquadrate, ca. 2 × 3 mm, fleshy, adaxially ± papillate, subtruncate; disk deeply concave at center; spur cylindric, ca. 2.5 × 1.5 mm, apex obtuse, interior with a densely hairy ligulate appendage on back wall. Column ca. 2 mm, with dense minutely papillate hairs; stipe spatulate, ca. 1.5 mm; viscidium elliptic, very thick. |
| |
| ||
| ||
Capsule cylindric, 4-5 cm × ca. 5 mm. Fl. Jan-Mar, fr. Jun. | ||
