| Biology : |
Terrestrial herb 8-20 cm tall, with a short fleshy subterranean rhizome; leaf 1, appressed to ground, ± orbicular, 2-6x1-7 cm, base cordate, dark olive-green with reddish tinge above, deep purple beneath, with 8-9 deeply impressed veins; inflorescence terminal, to 15 cm long, 3-10-flowered; peduncle reddish green with 2-3 acuminate reddish bracts c. 5 mm long; flowers resupinate, fleshy, dull reddish; bracts triangular, 4-7 mm long; pedicel and ovary 5-8 mm long, winged; dorsal sepal erect, linear, 5-10 mm long; laterals falcate, 4-7x2-4 mm, joined at first but later separating, tips curved down, lying below lip; petals linear, 5-10 mm long, deflexed or spreading; lip oblong-obovate, 4-6x3-5 mm, geniculate, base broadly auriculate, then constricted and then heart-shaped, concave with fleshy disk in centre, apex slightly emarginate; callus short, prominent. |
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