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

2. Anoectochilus burmannicus Rolfe, Bull. Misc. Inform. Kew. 1922: 24. 1922.

滇南金线兰 dian nan jin xian lan

Plants 16-30 cm tall. Roots fibrous, to 9 cm. Stem erect, 3-6-leaved. Leaves abaxially pinkish red, adaxially blackish green with limited bronze venation, broadly ovate to ovate-elliptic, slightly oblique, 3-8 × 1.8-5 cm, apex acute; petiole-like base and tubular sheath 1.5-2.8 cm. Peduncle 9-14 cm, with 2 or 3 pale red sterile sheathing bracts; rachis 3.5-6 cm, 3-12-flowered; floral bracts ovate-lanceolate, often sheathing ovary at base, 9-14 mm, shorter than ovary, outer surface sparsely pubescent, apex acuminate. Flowers erect, not resupinate; ovary and pedicel narrowly fusiform, not twisted, 11-15 mm, pubescent. Sepals pink, outer surface pubescent, 1-veined; dorsal sepal broadly ovate, cymbiform, 4.5-6 × 4-5 mm, apex subobtuse; lateral sepals spreading, oblong-elliptic, oblique, 6-7.5 × 3-5 mm, apex subacute. Petals yellowish white, broadly ovate-elliptic, strongly oblique, falcate, 5-6 × 3-4 mm, 1-veined, apex obtuse; lip yellow, Y-shaped, 13-22 mm; hypochile 2-3 mm; mesochile reflexed at right angle from apex of hypochile, 5-9 mm; flanges narrow, margin entire, terminating in small, slightly revolute auricles at apex of mesochile; epichile longitudinally dilated, 2-lobed; lobes diverging at an acute angle to one another, oblong, oblanceolate, or spatulate, 6-9 × 2-3 mm, entire, apex obtuse; spur conic, 2-3.2 mm, mouth 1.5-2.2 mm in diam., apex obtuse, containing 2 subelliptic, sessile calli near entrance. Column broadly ovoid, ca. 3 mm, with 2 lamellate wings; stigma lobes elliptic. Fl. Sep-Dec.

Damp places in evergreen broad-leaved forests, valleys; 1000-2200 m. S Yunnan [Laos, Malaysia (Peninsular), Myanmar, Thailand].


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