Erect terrestrial herbs up to about 6 dm. tall. Leaves 4-17 cm. long and 1-5.5 cm. broad, lanceolate to elliptic or elliptic-oblong, acute or somewhat acuminate, crowded near the middle of the stem, reduced to bracts above. Inflorescence up to about 25 cm. long, strict, densely flowered; bracts up to 3 cm. long, lanceolate to lanceolate-ovate, acute or acuminate. Dorsal sepal 6-10 mm. long and 4-6 mm. broad, ovate to broadly ovate, obtuse, cucullate. Lateral sepals 7-10 mm. long and 3.5-5 mm. broad, semi-lunate or oblong-arcuate, obtuse. Petals 5-9 mm. long and 3.5-6.5 mm. broad, oblong to subquadrate to triangular-oblong and cuneate at the base, dilated toward the truncate, bi-or tridentate apex. Lip 7-12 mm. long and about 1 mm. broad, linear, acute or obtuse, sometimes dilated at the apex and sometimes with obscure teeth on either side at the base; spur up to 30 mm. long (mostly about 20 mm.), slender, straight. Panama, Colombia, Brazil and Paraguay.
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