Stem annual, erect, branched ; branches rounded, fistu- 
lar, horn-shaped, stained with purple. Leaves ovate-oblong, 
sinuated, smooth, yellowish-green, caesious beneath, a little 
longer than the petiole. Flowers large, solitary, axillary, 
dirty-white, externally purplish. Calyx smooth, pale green, 
tubular, slit at end, the length of the tube. Corolla with 
ten angles, the alternate angles being mucronate. Stamens 
shorter than corolla. Fruit smooth, cernuous. 
J. L. 
