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Plants 10-29 cm tall. Pseudobulbs usually slightly compressed, ovoid to conic, 1-2 × 0.5-1.5 cm, with 2 or 3 nodes. Leaves 3-5, narrowly oblong or narrowly ovate-lanceolate, 7-18 × 1.2-3.4 cm, base narrowed into a petiole and then decurrent into a sheath, apex obtuse or unequally shallowly 2-lobed. Inflorescence terminal, 3-10 cm, usually 1-4-branched; rachis ± narrowly winged, racemose, branches 1-2 cm, 3-8-flowered; floral bracts narrowly lanceolate to nearly subulate, 2-5 mm. Flowers pale yellow, small; pedicel and ovary 8-12 mm. Dorsal sepal subovate, 3.5-4 × 1.5-2 mm, obtuse; lateral sepals broadly ovate-triangular, ca. 4 mm wide at base. Petals linear-oblanceolate or subcuneate, 2.5-3 × ca. 0.5 mm; lip 3.5-4 mm, base contracted into a short claw, 3-lobed; lateral lobes incurved, ovate-oblong to narrowly oblong, small; mid-lobe orbicular, margin undulate and irregularly erose, apex emarginate, with a thickened central part. Column ca. 1 mm, foot short. Capsule ellipsoid, 1.2-1.4 cm × 5-6 mm. Fl. and fr. Aug-Sep.
Plants cespitose. Roots numerous, 2–3 mm diam. Stems thickened at base, hidden by leaf sheaths, composed of several internodes, to 4 cm. Leaves 2–4; blade thin, narrowly oblong to elliptic, 3.5–20 × 1.1–3 cm, apex mostly acute. Inflorescences usually paniculate racemes, simple racemes in small plants; peduncle compressed; floral bracts spreading to reflexed, 1–2 mm. Flowers yellow or pale green with white lip; dorsal sepal ovate-elliptic, 2.5–4 × 1.5–2.5 mm; lateral sepals triangular, 2.5–5 mm; petals oblanceolate, rounded, 2–3 × 1 mm; lip 3-lobed, 3–5 mm, middle lobe quadrangular to oblong, lateral lobes falcate; disc with linear, densely farinose callus (pseudopollen); column cylindric, short; column foot 2–3 mm; pedicellate ovary to 7 mm. Capsules brown at maturity, ellipsoid, 6–12 mm.
Plants epiphytic or epilithic, up to 0.6 m high. Pseudobulbs narrowly conical, enclosed by leaf sheaths, 20-40 x 10-15 mm. Leaves 3-5, narrowly elliptic, rounded, veins prominent, 80-110 x 25-50 mm. Inflorescence branched, 40-500 mm high, branches up to 30-60 mm long, densely many-flowered. Flowers creamy yellow to pink. Sepals acute, apiculate; median sepal narrowly triangulate, 3.5-4.0 x 2 mm; lateral sepals obliquely ovate, 4.5-5.5 x 4.0-4.5 mm. Petals lorate to spathulate, rounded, 3.0-3.5 x 0.8-1.0 mm. Lip 3-lobed, clawed, 4.5-5.0 x 4-5 mm, callus a longitudinal ridge, midlobe suborbicular, apiculate, reflexed, margins crenate, 1.5 mm long, side lobes falcate, 1.5 mm long; mentum conical, 3 mm long. Flowering time Oct.-Jan.
Epiphyte, up to 450 mm tall. Petals up to 3 mm long and 1 mm wide. Lip 3-lobed, with a mealy surface in centre of midlobe. Flowers small, 2-6 mm from tip of mentum to apex of lip, yellowish green or dull pink.
