an erect, somewhat slender herb, 1/2–1 1/4 ft. high, with leafy stems; leaves sessile, suberect, ovate or ovate-lanceolate, acute or acuminate, 3/4–1 1/2 in. long, decreasing into sheaths below and into the bracts above; racemes 1–4 1/2 in. long, somewhat dense, many-flowered; bracts suberect, lanceolate or ovate-lanceolate, acute or acuminate, 1/3–1 in. long; pedicels 1/4– 1/3 in. long; flowers medium-sized, purple; dorsal sepal elliptic-oblong, obtuse, concave, 1/4 in. long; lateral sepals obliquely semiovate-oblong, subobtuse, somewhat spreading, rather longer than the dorsal; petals obliquely oblong, obtuse, 1/4 in. long; lip rather longer than the dorsal sepal, suberect, entire, oblong or ovate-oblong, obtuse; minutely crenulate; disc with a fleshy central nerve and a pair of narrow erect lamellæ at the base; spur conic-oblong, obtuse, somewhat curved, as long as the limb; column stout, 1/6 in. long. null