A pendent epiphyte 6–27 cm. long with a short stem, 0.5–3 cm. long, entirely hidden by the leaf-bases.. Leaves bilaterally compressed, iridiform, linear-tapering, acuminate, 4–25 cm. long, 2–5 mm. wide, articulated obliquely to prominent leaf-bases up to 2 cm. long.. Inflorescences 1–several, 1 (–2)-flowered, 2–6 cm. long; peduncle slender, wiry, up to 5 cm. long; bracts elliptic-ovate, acute, 2–3 mm. long.. Flowers pale yellow-green or whitish green, scabrid on the outer surface; pedicel and ovary 5–7 mm. long.. Dorsal sepal lanceolate, acuminate, 7–9 mm. long, 1.5–2 mm. wide; lateral sepals similar but oblique at the base.. Petals linear-lanceolate, acuminate, 6–8 mm. long, 1.5–1.8 mm. wide.. Lip entire, lanceolate, acuminate, deflexed, 7–8 mm. long, 2 mm. wide.. Spur decurved-pendent, slenderly cylindrical, 15–18 mm. long.. Column 1 mm. long.. Fig. 160, p. 629.
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