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

32. Habenaria austrosinensis Tang & F. T. Wang, Bull. Fan Mem. Inst. Biol. Bot. 7: 134. 1936.

薄叶玉凤花 bao ye yu feng hua

Plants 30-60 cm tall. Tubers narrowly ellipsoid, 3-5 × 1-3 cm, fleshy. Stem erect, terete, stout, pubescent, with 3-5 leaves below middle and 9-13 bractlike leaves above. Leaf blade narrowly elliptic to oblong-oblanceolate, 13-25 × 2.5-6 cm, relatively thin, base contracted into amplexicaul sheath, apex acuminate. Raceme many flowered, 9-14 cm; rachis pubescent; floral bracts lanceolate, ca. 15 mm, shorter than ovary, ciliate, apex acuminate; ovary twisted, cylindric-fusiform, pubescent, including pedicel 15-27 mm. Flowers white. Dorsal sepal concave-hooded, broadly ovate, ca. 3.5 × 5 mm, abaxially pubescent, 3-veined, apex acute; lateral sepals reflexed, strongly obliquely triangular, ca. 5 mm, toward apex strongly dilated and ca. 8 mm wide, with 3 strongly curved veins. Petals forming a hood with dorsal sepal, obliquely linear, ca. 4 × 1 mm, 1-veined, apex obtuse; lip longer than sepals, above base deeply 3-lobed; lobes similar, linear, ca. 8 mm; spur curving upward above ovary, cylindric-clavate, 20-22 mm, ca. as long as or slightly shorter than ovary, apex dilated; connective narrow; stigmas elliptic, ca. 1 mm. Fl. Jul-Aug.

Damp places in forests along valleys; 700-1400 m. S Yunnan [Thailand].


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