Tall, erect, epiphytic herbs, the cylindric, sometimes branching stems 60-75 cm. tall, apparently entirely without pseudobulbs, the lower portions enveloped in the closely imbricating, persistent, chartaceous leaf bases which ultimately weather to loose fibers, the upper stem with 2-ranked foliage. Leaves coriaceous, linear-lanceolate, acuminate, 9-25 cm. long and .8-1.5 cm. wide, the broad, conduplicate bases imbricating and equidistantly distributed on the stem. Inflorescences usually several, slender, 1-flowered scapes 5-6 cm. long, produced from the upper leaf axils. Flowers of moderate size. Sepals free, subequal, spreading, pale pinkish tan (in our specimens), the dorsal sepal linear-lanceolate, acute, with a central keel, 2-2.5 cm. long and .35-5 cm. wide, the laterals ligular, acute, 2.3-2.8 cm. long and .5-.7 cm. wide, the bases rather oblique and adnate to the column foot, forming a prominent acute mentum. Petals linear-lanceolate, acute, pale pinkish tan (in our specimens), 2-2.2 cm. long and .3-.4 cm. wide. Lip 3-lobed near the apex, reddish-brown, 13-15 mm. long and 6-8 mm. wide when spread out, contracted at the base and articulated with the column foot, lateral lobes erect in natural position, the anterior margins subacute and somewhat projecting, the mid-lobe ovate, abruptly acute, about I4 the total length of the lip, conspicuously thickened and minutely papillose, with a prominent tubercle on the underside of the apex; the disk with a ligular, rather concave, obtuse callus, about 3/4 the length of the lateral lobes, the apex rather conspicuously thickened. Column short, stout, semi-terete, produced at the base into a long foot.
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