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

10. Habenaria aitchisonii H. G. Reichenbach, Trans. Linn. Soc. London, Bot. 3: 113. 1886.

落地金钱 luo di jin qian

Habenaria bihamata Kraenzlin; H. diceras Schlechter; H. diceras var. pubicaulis (Schlechter) Soó; H. pubicaulis Schlechter.

Plants 12-33 cm tall. Tubers oblong or ellipsoid, 1-2.5 × 0.8-1.5 cm, fleshy. Stem erect, terete, papillate-pubescent, with 2 nearly opposite leaves at base. Leaf blade spreading horizontally, ovate or ovate-orbicular, 2-5 × 1.5-4 cm, adaxially sometimes with 5 yellowish white veins, base narrowed and amplexicaul, apex acute. Raceme several to many flowered, 5-15 cm; rachis papillate; floral bracts ovate-lanceolate, ca. as long as or shorter than ovary, apex acuminate; ovary twisted, terete, including pedicel 7-10 mm, papillate-hairy. Flowers yellowish green or green, small. Dorsal sepal forming a hood with petals, erect, ovate, concave, 3-5 × 2.5-3.5 mm, 3-veined, apex obtuse or acute; lateral sepals reflexed, obliquely ovate-oblong, 3.5-5.5 × 2-3 mm, 3-veined, apex obtuse or acute. Petals indistinctly 2-lobed; upper lobe obliquely falcate-lanceolate, 3-5 × 1.5-2 mm; lower lobe a tooth at base of upper lobe; lip longer than sepals, above base deeply 3-lobed; lateral lobes retrorse, almost embracing erect sepals, subulate, 6-12 mm, apex slightly hooked; mid-lobe reflexed, straight, linear, 5-9 × 1-1.2 mm; spur pendulous, cylindric-clavate, 6-9 mm, shorter than ovary; connective relatively narrow; stigmas subclavate. Fl. Jul-Sep. 2n = 42.

Forests, thickets, grasslands; 2100-4300 m. Guizhou, S Qinghai, W Sichuan, S and SE Xizang, C and NW Yunnan [Afghanistan, Bhutan, India, Kashmir].


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