The genus Corynostylis belongs to the family of the Violets, and consists of semi-scandeut shrubs, with alternate leaves and long-stalked flowers, the lower petal of which is produced behind into a long horn or spur. The present species was found on the banks of the Amazon. It is a shrubby and remarkably free-blooming plant, of a trailing or climbing habit, bearing ovate-acuminate leaves and lovely, white, horn-shaped or trumpet-shaped flowers, about two inches long, suspended on long, thread-like peduncles. These interesting flowers taken in profile present the appearance of some long-spurred Tropaeolum, while on the front view they bear a resemblance to those of a gigantic Violet.