Five flowers and one bud born on 6 short, lateral, subsessile, single flowered inflorescences to 3.0-cm, with 5 papery bracts, subtending scarious sheaths held close into the foliage; leave triangular in cross-section, green, blushed mahogany at base, up to 0.5 cm in width x 9.5 cm in length; pseudobulbs small, doliform, green, obscured by scarious sheaths, up to 0.3 cm in diameter x 1.0 cm in length, separated by rhizomes up to 1.2 cm; roots thin, wiry, 0.04 cm in diameter, root tips light green; flower translucent white with buff cast; sepals lanceolate reflexed 90 degrees distal two-thirds, apices acute, margins entire lateral sepals fused at column foot to form mentum; petals lanceolate, porrect, apices apiculate, margins entire; lip oblanceolate, apex decurved, cupped slightly around apex of central callous, translucent white, blushed yellow centrally, callous yellow overlaid with fine mahogany streaks basal one half, apex obtuse, margins slightly undulate; column short, erect, white, overlaid brown on apical ridge; anther cap bell shaped, ivory; ovary lightly ribbed longitudinally, light green, basally with one scarious bract, 0.15 cm in diameter x 1.1 cm in length; substance medium, texture of sepals and petals beaded, lip crystalline; species from Manu Wildlife Center, Boco Colorado, Madre de Dios, Peru; ID by SITF: ______________