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

30. Habenaria arietina J. D. Hooker, Fl. Brit. India. 6: 138. 1890.

毛瓣玉凤花 mao ban yu feng hua

Habenaria arietina

Credit: Harvard University Herbaria

Habenaria intermedia D. Don var. arietina (J. D. Hooker) Finet; H. pectinata D. Don var. arietina (J. D. Hooker) Kraenzlin; Ochyrorchis arietina (J. D. Hooker) Szlachetko.

Plants turning black when dried, 57-65 cm tall. Tubers oblong, 3-5 × 1-2 cm, fleshy. Stem erect, terete, robust, with 5-7 laxly arranged leaves. Leaf blade ovate-lanceolate or oblong-lanceolate, 5.5-10 × 2-3 cm, base amplexicaul, apex acuminate. Raceme densely many (more than 5-) flowered, to 30 cm; floral bracts ovate-lanceolate, 1.8-2 cm, nearly as long as ovary, apex acuminate; ovary twisted, terete, including pedicel 3-3.5 cm. Flowers white or greenish white. Sepals 5-veined, ciliate; dorsal sepal erect, oblong, concave, ca. 19 × 6 mm, apex acute; lateral sepals reflexed, obliquely falcate-lanceolate, ca. 20 × 6 mm, apex acute. Petals forming a hood with dorsal sepal, obliquely subovate-falcate, ca. 19 × 8 mm, 5-veined, adaxially pubescent, margin ciliate, unlobed; lip ca. 3 cm, base spurred, deeply 3-lobed above base; lobes linear, nearly equal in length, ciliate; lateral lobes ca. 2.2 cm, outer margin with 10 filiform lobules; mid-lobe ca. 2 mm wide; spur pendulous, cylindric-clavate, 3.5-4 cm, ca. as long as or slightly longer than ovary, slightly dilated below middle, apex obtuse; connective 3.5-4 mm wide; pollinia ovoid; caudicles linear; viscidia orbicular, small; rostellum with elongate arms; stigmas clavate. Fl. Aug. 2n = 21, 42, 46, 48, 56.

Grassy slopes; 2300-2400 m. SE Xizang [Bhutan, India, Nepal].


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