Plants 7-14 cm tall, with a stout, rather short rhizome. Stem erect, 3-7 cm, covered by 2 tubular sheaths, apex with a subopposite leaf and bract prostrate on substrate. Leaf blade dark green, marked with purplish black spots, ovate or obovate to orbicular, 8.5-19 × 7-16 cm, margin sometimes purplish, apex obtuse or mucronate. Inflorescence terminal, with 1 flower, ebracteate; pedicel 4-7 cm, glabrous; ovary 1.2-1.8 cm, glabrous. Flower rather large; sepals and staminode liver-colored; petals and lip yellow spotted with maroon. Dorsal sepal ovate or broadly ovate, 4.2-7 × 3.8-6 cm, both surfaces glabrous, ciliate, apex acute; synsepal elliptic, 3.5-5.6 × 2-3.6 cm, ciliate, with 2 teeth at apex. Petals incurved forward, enfolding lip, obliquely oblong, 4-6.5 × 1.4-2.1 cm, abaxially pubescent on upper side, ciliate, apex acute; lip pouched, subellipsoid, dorsiventrally flattened, 3.3-4 cm, papillate on front surface. Staminode suboblong, 1.3-1.5 cm, adaxially papillate. Fl. May-Jul.
Home