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Column 1.5–2 mm long, including triangular stelidia 0.2–0.3 mm long; anther with a retuse protrusion which overtops the front margin; pollinia 4, ellipsoid, the larger pair about twice as long as the smaller.
Inflorescence 13–43 cm long, many-flowered; peduncle to 32 cm long, rather wiry; rhachis up to 11 cm long, slightly swollen and flattened, distinctly nodding so that it forms an angle with the peduncle.
Pseudobulbs 1.5–8 cm apart on the rhizome, 1-leafed, 1.5–3.5 × 1–1.5 cm, ovoid or ellipsoid, 4-angled, green with brown streaks between the angles.
Leaf erect, fleshy, with petiole to 6 mm long; lamina 3–14.5 × 1.2–3.2 cm, lanceolate or oblong, emarginate at the apex.
Lip 2–3 × 1–1.8 mm, very fleshy, with large, irregular warts towards the apex on upper and lower surfaces.
Flowers distichous, fleshy, green with purple striations, lip purple-black, or whitish with purple marks.
Dorsal sepal 4–6 × 2–3 mm long, ovate, not recurved; lateral sepals similar but acuminate.
Bracts scarious, spreading, 3–5 × 2.6–4 mm, triangular, acuminate.
Epiphytic herb with a stout creeping rhizome.
Rhizome woody, 2–3.5 mm in diameter.
Petals 2.2–3 × 0.6–1 mm, oblong.
Ovary and pedicel 1.7–3 mm long.
