A small epiphytic plant to 12 cm. high.. Pseudobulbs clustered, ovoid to ovoid-conical, 1–23 cm. long, 0.5–0.9 cm. diameter, 2–3-leaved at the apex.. Leaves narrowly oblong, oblong-oblanceolate or linear, subcoriaceous, spreading or suberect, 5–10.5 cm. long, 0.7–2.1 cm. wide, rounded or minutely apiculate at apex, articulated at base to a conduplicate petiole, 1–1.6 cm. long.. Inflorescence erect, longer than the leaves, 2–6-flowered; peduncle subcompressed, pubescent, 5 cm. long; bracts ovate to cordate, carinate, densely pubescent, mucronate, 5–7 mm. long, up to 5 mm. wide.. Flowers variable in colour and size, pubescent on outer surface; sepals green, olive-green or yellow-green (rarely yellow); lip white, lined on side lobes with purple; callus yellow, often spotted crimson.. Dorsal sepal ovate, concave, acute or apiculate, 8–13 mm. long 4.5–7 mm. wide; lateral sepals obliquely ovate-triangular, acute, 8–14 mm. long, 7–10 mm. wide; mentum broadly conical, 6.5–9.5 mm. high.. Petals oblanceolate, obtuse or apiculate at apex, 6.5–9.6 mm. long, 2–3 (–4) mm. wide.. Lip shortly and broadly clawed, 3-lobed, strongly recurved in basal half, 8–11 mm. long, 6–9.5 mm. wide, when spread out; side lobes erect, rounded, 4 mm. wide, densely clavate-pubescent; mid-lobe oblong or ovate, fleshy, 4–5 mm. long, 2–3 mm. wide, acute, glabrous; disc fleshy, densely clavate-pubescent, with a conical callus at base of mid-lobe between the side lobes.. Column short, stout, 3 mm. long.
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Lip strongly recurved, fleshy and hard to flatten, 9–10 × 7 mm, 3-lobed at about the middle, with a conical callus at the junction of the lobes; mid-lobe 4–5 × 3–5 mm, ovate, glabrous; side lobes erect, rounded; disk densely clavate pubescent.
Inflorescence (floral axis) erect, longer than the leaves, 2–6-flowered. Peduncle 3–5 cm long; pedicel and ovary 5 mm long; bracts 5–7 × 4–5 mm, ovate, mucronate; all pubescent.
Flowers sometimes strongly scented, variable in size and colour; the measurements given are for plants from the Flora Zambesiaca area.
Dorsal sepal 11–12 × 5 mm, ovate, acute; lateral sepals 11–12 × 7–8 mm, obliquely triangular, acute; mentum c. 9 mm high.
Sepals and petals green or yellow-green, lip white with purple veins on the side lobes.
Leaves 5–10.5 × 0.7–2 cm, oblong to oblanceolate, dark green, sometimes purple-edged.
Pseudobulbs 1–2 × 0.5–1 cm, ovoid to ovoid-conical, 2–3-leaved.
Small epiphytic herb to c. 12 cm high, forming clumps.
Column short and stout, c. 3 mm long.
Petals c. 9 × 2 mm, oblanceolate.
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