Klotzsch in Otto & Dietr., Allg. Gartenzeitung 19:281.1851
N. panamensis Ames
Epiphyte; pseudobulbs ca 2 cm long and 1 cm wide, partially enveloped in papery imbricating bracts, the bracts soon weathering away. Petioles conduplicate, very short; blades solitary at apex of pseudobulb, oblong-lanceolate, obtuse and unequally bilobed at apex, to 15 cm long and 3.5 cm wide, coriaceous. Racemes pendulous, from base of current pseudobulb, densely flowered, to 20 cm long; flowers white; pedicels slender, subtended by scarious, narrowly triangular, acuminate bracts; sepals subequal, the dorsal sepal broadly elliptic-oblanceolate, obtuse, concave, ca 7 mm long, 5 mm wide, the lateral sepals fused, the united segments linear-lanceolate, to 8 mm long, 2 mm wide; petals elliptic-lanceolate, acute, equaling sepals; lip ca 6 mm long, clawed, obliquely inserted at base of column, the blade sagittate, ca 3 mm wide, with a short-keeled callus; column slender, terete, ca 3 mm long. Fruits not seen. Dressler 2908 (US).
Apparently rare. The Dressler collection was flowering in June.
The species is pollinated by the bee Euglossa hemichlora (Dressler,1968a).
Panama and Colombia. In Panama, known from tropical moist forest in the Canal Zone, Colón (Achiote), and Darien.