358 SYSTEMATIC BOTANY 



waste places. Its silvery white leaves are very variable 

 in shape and size. 



CONVOLVULUS PENTANTHUS, Jacq., which differs 

 from the IPOMCEA in the stigmas being cylindrical, not 

 globose, and has bright blue flowers an inch across, 

 is very common in gardens. 



BORAGINE^: 



Examples : 



TRICHODESMA INDICUM, Br., a herb, the stem and 

 leaves hispid, or scabrid, with short stiff hairs on small 

 swollen tubercles. 



Leaves mostly opposite but some of the upper 

 alternate, sessile, lanceolate, cordate or hastate at the 

 base, entire, hispid. No stipules (fig. 81). 



Flowers axillary, pedicels an inch or so long. Ca- 

 lyx deeply five-lobed, the lobes in fruit enlarged and 

 produced outwards at the base. Corolla blue, about 

 half an inch in diameter, with short tube and five 

 spreading acuminate lobes. Stamens five, attached to 

 the corolla tube and alternate with its lobes. Ovary 

 of four cells with one ovule in each, style rising 

 from between the four lobes of the ovary, stigma 

 small. Fruit of four nutlets, each enclosing one seed 

 in which the radicle points upwards, and rough along 

 the inner angle , where they were attached to the 

 central axis. 



HELIOTROPIUM INDICUM, L., (fig. 82), an annual 

 herb, the stem and leaves rough with coarse hairs. 

 Leaves alternate, exstipulate, petioled, ovate, slightly 

 serrate, without stipules. 



