Erect or repent epiphyte, to ca 20 cm high; pseudobulbs lacking; secondary stems slender' 1-leaved, to 19 cm long, enveloped tightly at base by a scarious sheath, arising from a creeping, densely rooting rhizome. Leaves lanceolate-ligulate, acute to acuminate, narrowly acute at base, 6-16 cm long, 1-2.5 cm wide, thick; blade, secondary stem, and pedicels often violet-purple. Flowers few, in terminal racemes about half as long as leaves, yellow-green, all parts lightly or heavily marked with violet-purple especially near base; sepals narrowly pointed, 5.5-9 mm long, with a thick medial rib, persisting in fruit; petals oblong-oblanceolate, much shorter and enclosed within sepals, exceeding length of column; lip thick, +/- oblong, 2.5-3.5 mm long, with 2 short erect teeth laterally below the middle. Fruits oblong, somewhat oblique, broadened toward apex, 2.5-3.5 cm long. Croat 16200. Costa Rica and Panama, In Panama, known from tropical moist forest in the Canal Zone and tropical wet forest in Colon (Rio Indio).