虎舌兰 hu she lan

Limodorum roseum D. Don, Prodr. Fl. Nepal. 30. 1825; Ceratopsis rosea (D. Don) Lindley; Epipogium africans Schlechter; E. dentilabellum Ohtani & S. Suzuki; E. guilfoylii F. Mueller; E. indicum H. J. Chowdhery, G. D. Pal & G. S. Giri; E. kassnerianum Kraenzlin; E. kusukusense (Hayata) Schlechter; E. makinoanum Schlechter; E. nutans (Blume) H. G. Reichenbach; E. poneranthum Fukuyama; E. rolfei (Hayata) Schlechter; E. sessanum S. N. Hegde & A. N. Rao; E. sinicum C. L. Tso; E. tuberosum Duthie; Galera kusukusensis Hayata; G. nutans Blume; G. rolfei Hayata; G. rosea (D. Don) Blume; Gastrodia schinziana Kraenzlin; Podanthera pallida Wight; Stereosandra schinziana (Kraenzlin) Garay.

Plants 10-45 cm tall. Rhizome tuberous, narrowly fusiform to ovoid, 1-5 cm, 0.5-2 cm in diam., many noded. Stem with 1-8 scattered sheaths, white, sometimes tinged pale pink; sheaths amplexicaul, white, 7-13 mm, membranous. Rachis laxly to subdensely 2-16-flowered, sometimes pendulous toward apex; floral bracts ovate-lanceolate, 7-12 × 4-7 mm. Flowers resupinate, pendulous, opening widely or not, white with faint purple spots on lip; pedicel 3-7 mm; ovary 5-7 mm. Sepals weakly spreading, linear-lanceolate, 8-11 × 2-3 mm, 3-veined, margin undulate, apex subacute. Petals similar to sepals, weakly spreading, often slightly shorter and wider than sepals, slightly oblique, 7-10 × 2-3 mm, apex acute to acuminate; lip elliptic-ovate when flattened, concave, 8-12 × 6-7 mm, spurred at base, entire, margins erose-denticulate; disk with 2 longitudinal densely papillose ridges, and occasionally with a shorter central ridge, or ridges sometimes reduced and inconspicuous; spur projecting backward, nearly parallel to ovary, cylindric, 3-5 × 1.5-2.5 mm, shorter than ovary, apex obtuse. Column 2.5-4.5 mm; anther subglobose. Capsule broadly ovoid-ellipsoid, 5-7 × ca. 5 mm. Fl. and fr. Apr-Sep. 2n = 68.

Moist broad-leaved forests, shady places along valleys; 500-1600 m. Guangdong, Hainan, C and S Taiwan, SE Xizang, S Yunnan [India, Indonesia, Japan, Kashmir, Laos, Malaysia, Nepal, Philippines, Sri Lanka, Thailand, Vietnam; tropical Africa, Pacific islands].