Caespitose, epiphytic herbs up to about 60 cm. tall, commonly 10-15 cm. tall. Stems very short, pseudobulbose; pseudobulbs ovoid to fusiform or cylindric, usually enclosed in bracts, or the leaf-sheaths, bearing 2-5 leaves. Leaves 3-26 cm. long and 0.4-3 cm. broad, variable, linear to oblong-elliptic to oblanceolate, acute or obtuse, the sheaths enclosing the peduncle at the base. Inflorescence terminal, the peduncle covered with scarious sheaths, bearing a single terminal raceme or 1 or more short lateral racemes from the nodes of the peduncle. Dorsal sepal 3-3.5 mm. long and 1.6-2 mm. broad, lanceolate, ovate to oblong-ovate, acute. Lateral sepals 3-4.5 mm. long and 1.5-3 mm. broad, lanceolate-ovate to broadly ovate, acute or acuminate. Petals 2-2.5 mm. long and 0.5-1 mm. broad, obtuse or acute, slightly arcuate. Lip 2.5-3.5 mm. long and 2-3 mm. broad, ob-long or oblong-ovate, 3-lobed; lateral lobes small, usually rounded, erect; mid-lobe large, truncate, apiculate or usually retuse; disc provided with an umbonate or mammillate callus at the base and with the terminal part covered with evanescent, farinaceous pubescence. Ovary glabrous.
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