Descr. Annual, or at most biennial. Stem herbaceous, terete, 

 glabrous, about a foot high, dichotomously branched ; branches 

 succulent. Leaves alternate, petiolate, obliquely ovate (one side 

 of the leaf frequently not half the size of the other), entire, closely 

 penninerved ; petiole strait, half an inch to nearly an inch long. 

 Flotvers in long, terminal, sometimes interrupted and sometimes 

 leafy racemes, unilateral, drooping. Pedicels short, curved, with 

 a small subulate bractea at the base. Calyx rather short, hemi- 

 spherico-campanulate, five-angled, five-cleft, the lobes acute, un- 

 equal. Corolla personate, blue, beneath paler and almost white, 

 with a little yellow. Tube cylindrical, rather more than twice the 

 length of the calyx ; Limb two-lipped, upper lip bent back and 

 bifid, lower lip a little reflexed, trifid ; the faux yellow ; middle 

 lobe the largest. Stamens two ; filaments arcuate ; anthers slightly 

 cohering. There are the rudiments of two other stamens, and a 

 minute gland, representing a fifth stamen. Ovary oval, glabrous, 

 with a large fleshy trifid gland on one side at the base ; two-celled, 

 with parietal two-lobed placenta covered with many ovules. Style 

 included. Stiyma capitate. 



Fig. 1. Flower. 2. Corolla laid open. 3. Pistil and gland. 4. Transverse 

 section of the ovary: — magnified. 



