Erect, caespitose, epiphytic herbs up to 50 cm. tall. Stems slender, strict, simple, covered with the amplexicaul leaf-sheaths or naked below. Leaves 5-13 cm. long and 0.5-1.5 cm. broad, elliptic-linear to linear-lanceolate, acute, erect or spreading. Inflorescence a simple few-flowered raceme, peduncle covered with several large imbricated spathe-like bracts at the base. Sepals 10-25 mm. long and 2-3 mm. broad, linear-lanceolate to lanceolate, acute or acuminate. Petals 10-20 mm. long and about 1 mm. broad, filiform. Lip unguiculate; claw adnate to the column; lamina strongly 3-lobed, the lateral lobes semi-ovate with crenate or laciniate margins and the setae usually recurved, the mid-lobe 5-12 mm. long and linear or filiform, disc provided with 2 tubercular calluses at the apex of the column.
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