A scandent epiphyte climbing by its roots; stems up to 1 m. long, 1.5–3 mm. in diameter, glossy bright brown.. Roots numerous, all along the stem, flexuous, branching.. Leaves 1–2.5 cm. apart, oblong-lanceolate, lanceolate or ovate-lanceolate, unequally acutely bilobed at the apex, 1.5–3 cm. long, 0.5–1.3 cm. wide, sap-green, twisted at the base and articulated to sheaths 1–1.2 cm. long.. Inflorescences spreading, 4–6 cm. long, laxly 4–6-flowered; bracts amplexicaul, broadly ovate, obtuse or truncate, 3–5 mm. long.. Flowers white, sweetly scented; pedicel and ovary 1–2 cm. long.. Dorsal sepal oblong-elliptic, obtuse or apiculate, 3 mm. long, 1.5–2 mm. wide; lateral sepals obliquely oblong-elliptic, subacute, 4–4.5 mm. long, 1.5–1.7 mm. wide.. Petals obliquely oblong-lanceolate, subacute or obtuse, 3.5 mm. long, 1.5 mm. wide.. Lip 3-lobed in the apical half, narrowly clawed and concave at the base, 10 mm. long and wide; side lobes reflexed, spreading, linear, acute, 4.5–5 mm. long; mid-lobe lanceolate, acute, 3.5 mm. long, 1–1.2 mm. wide.. Spur filiform, pendent, 6–7 cm. long.. Column 1 mm. long; rostellum bifid; viscidium large, reniform; stipes short Pl. 7. Fig. 144.
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