An erect epiphyte with a 20–40 cm. long, rarely branching stem.. Leaves suberect, coriaceous, linear, unequally roundly bilobed at apex, 8–24 cm. long, 1.4–2.8 cm. wide.. Inflorescences 3.5–9 cm. long, 4–10-flowered; peduncle 10 mm. long, covered by sheathing sterile bracts; bracts elliptic, obtuse, 5–11 mm. long, 4–10 mm. apart, brownish black.. Flowers white with a salmon-coloured spur; pedicel and ovary 18–22 mm. long.. Sepals lanceolate, acuminate, 12–19.5 mm. long, 4–7.6 mm. wide.. Petals similar, 10–16 mm. long, 3.3–5.7 mm. wide.. Lip recurved, lanceolate, acuminate, 12–16.5 mm. long, 5–6 mm. wide.. Spur ± straight, 3.5–5 cm. long.. Column 2–2.5 mm.long; rostellum pendent, 4.5 mm. long; viscidium bipartite.. Fig. 142.
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