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FOC | Family List | FOC Vol. 25 | Orchidaceae | Habenaria

44. Habenaria lucida Wallich ex Lindley, Gen. Sp. Orchid. Pl. 319. 1835.

细花玉凤花 xi hua yu feng hua

Habenaria dilatata (Pursh) Hooker subsp. lucida (Wallich ex Lindley) S. S. Ying; H. longiracema Fukuyama; H. recurva Rolfe ex Downie var. erectiflora Tang & F. T. Wang; Habenella lucida (Wallich ex Lindley) Szlachetko & Kras-Lapinska; Hetaeria taiwaniana S. S. Ying; Peristylus longiracemus (Fukuyama) K. Y. Lang; Platantheroides lucida (Wallich ex Lindley) Szlachetko; Rhomboda taiwaniana (S. S. Ying) Ormerod.

Plants 40-61 cm tall. Tubers oblong or ellipsoid, 3-5 × 1-3 cm, fleshy. Stem erect, terete, slender, with 4-6 ± clustered leaves and 3-6 bractlike leaflets. Leaf blade oblanceolate, subspatulate, or oblong-lanceolate, 8-18 × 2.5-4.5 cm, base contracted into amplexicaul sheath, apex acute or acuminate. Raceme 25-43-flowered, 15-23 cm; floral bracts lanceolate to ovate-lanceolate, 8-10 × 3-4 mm, shorter than ovary, apex acuminate; ovary twisted, cylindric, including pedicel 16-18 mm. Sepals green, 3-veined; dorsal sepal forming a hood with petals, ovate, concave, 3.5-4 × 2.5-3 mm, apex obtuse; lateral sepals reflexed, obliquely ovate or ovate-oblong, 4-4.5 × ca. 2.5 mm, apex obtuse. Petals yellow, narrowly ovate-oblong, 3-3.5 × ca. 1.5 mm, 2-veined, apex obtuse; lip yellow, ca. 5 mm, thickly textured, 3-lobed from base; lobes narrowly oblong; lateral lobes reflexed, 3-4.5 × 1-1.5 mm, apex obtuse; mid-lobe suberect, 3.5-4.5 × 1-1.5 mm, apex adnate to tip of hood formed by dorsal sepal and petals; spur cylindric, ca. 21 × 1 mm, slender; connective narrow; pollinia ovoid; viscidia lanceolate, ca. 1.2 mm. Fl. Jul-Sep. 2n = 42.

Forests; 400-1200 m. Guangdong, Hainan, Taiwan, S Yunnan [Cambodia, E India, Laos, Myanmar, Thailand, Vietnam].


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