plant 1/2– 3/4 ft. high, with large oblong-ovoid tubers and leafy stems; leaves sessile, oblong-lanceolate, acute, somewhat fleshy, 1–1 1/4 in. long, decreasing upwards into the bracts; racemes oblong, about 3 in. long, dense, many-flowered; bracts ovate-lanceolate, acute, 1/2– 3/4 in. long; pedicels about 5 lin. long; flowers medium-sized; dorsal sepal broadly ovate, obtuse, concave, about 2 1/2 lin. long; lateral sepals obliquely semiovate-oblong, obtuse, about 3 lin. long; petals simple, semiovate-oblong, obtuse, nearly as long as the dorsal sepal; lip simple, linear-oblong, obtuse, fleshy, about 4 lin. long; spur 3 1/2–4 lin. long, rather stout, subclavate at the apex; column about 1 lin. long, obtuse; side lobes of rostellum short; stigmas 1/2 lin. long, oblong, obtuse. null