An epiphyte or rarely a lithophyte with a short pendent stem 1–4(–7) cm. long.. Leaves falcate, oblanceolate to linear, unequally roundly bilobed at the apex, 6–20 cm. long, 1.4–2.1 cm. wide, twisted at the base to lie in one plane and articulated to imbricate leaf-sheaths, very dark green.. Inflorescences 1–several, 7.5–20 cm. long, laxly 3–7-flowered; peduncle slender, 6–13 cm. long; bracts amplexicaul, conical, obtuse, 2–4 mm. long.. Flowers white with the tip of the spur green; pedicel and ovary 2.2–3.1 cm. long.. Dorsal sepal elliptic, obtuse, 2.7–3.3 mm. long, 1.6–1.8 mm. wide; lateral sepals spathulate, obtuse, 8.5–11.7 mm. long, 2–2.5 mm. wide.. Petals obliquely triangular, acute, 3–3.3 mm. long, 3.8–4.6 mm. wide, joined to the lateral sepals for the basal 3–5 mm.. Lip 3-lobed, 9–9.5 mm. long, 6.5–8 mm. wide; side lobes oblanceolate, somewhat bilobed or entire and rounded at the apex, 4–5 mm. long; mid-lobe lanceolate, acute, equal in length to the side lobes.. Spur cylindrical, pendent, 5–6 mm. long from a broad mouth.. Column 1 mm. long; rostellum 3-lobed; stipites 2; viscidia 2.. Pl. 8.
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