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Plants epiphytic or epilithic, with stout rhizomes 3-4 mm in diameter; pseudobulbs ovoid to narrowly conical, 4-5 angled, pale green, 30-50 mm apart, 15-30 x 10-17 mm; leaves leathery, erect, narrowly oblong, rounded, emarginate, 25-80 x 15-20 mm. Inflorescence an erect, 90-260 mm tall spike with 24-40 flowers; peduncle slender, sheaths lax to imbricate, acute, 10-15 mm long; rhachis swollen, flattened; bracts acute, to 5 mm long. Flowers open, dull purplish-violet, the inner surface of the lateral sepals striped white and purple. Sepals unequal; median linear, concave, hooding the flower with the apex recurved, acute, 9 x 1 mm; laterals triangular, acuminate, 6 x 4 mm. Petals linear, tapering to an acute apex, 7 x 0.2 mm. Lip ovate, fleshy, ecallose, 4 x 2.5 mm. Gynostemium curved, 3 mm long. Capsules ellipsoid, 10 x 5 mm.
Epiphytic or lithophytic herb, succulent, 0.18-0.25 m high; rhizomes stout, 50 mm long; pseudobulbs narrowly ovoid or pear-shaped, 3-5-angled, 20-40 mm long, 30-60 mm apart, yellow. Leaves 2 at apex of pseudobulbs, slightly succulent, elliptic, 60-100 x 15-20 mm, shortly bilobed at apex. Inflorescences lateral, from base of pseudobulbs, rounded at base, flattened at upper 1/2, 180-250 mm high, margins smooth, mottled and striped dull purplish. Flowers small, 24-40, in 2 rows, fleshy, maroon. Sepals: median sepal curving forward; lateral sepals ovate and acuminate. Petals narrow, shorter than lateral sepals. Lip small, fleshy, pointed. Flowering time Nov.-Feb.
Inflorescence erect, up to 24 cm long, the peduncle shorter than the rhachis. Rhachis fleshy, scabrid, bilaterally flattened, to 1 cm wide, green, wavy on the upper margins, up to c. 30-flowered.
Dorsal sepal fleshy, 6–10 × 1.5–2 mm, ovate-lanceolate, curved, subacute; lateral sepals 4–8 × 2.5 mm, ovate, acuminate, the apex curved downwards.
Pseudobulbs 2-leaved, to 9 × 3 cm, orbicular, ovoid, ellipsoid or oblong, 3–5-angled, the edges often wavy or knobbly, yellow or green.
Bracts reflexed, 2–7 × 2–4 mm, triangular-ovate, placed near the lower edge of the rhachis.
Flowers fleshy, scabrid, mottled with brown or maroon, several to many opening together.
Leaves stiff, 5–17 × 1–4 cm, linear to lanceolate, or ovate-elliptic.
Lip 2–6 × 2–3 mm, ovate, deflexed, recurved, the edges entire.
Medium to large epiphytic or lithophytic herb.
Petals 2.5–6 × 0.5–1 mm, lanceolate, acute.
Column 1.5 mm long, stelidia short, acute.
Rhizome creeping, 2–5 mm in diameter.
Pedicel and ovary 3 mm long.
