192 



POPULAR GARDEN BOTANY. 



long narrow trumpet-shaped tube, spreading at the edge into 

 five long and pointed angles; these lovely flowers have a 

 powerful scent, which adds greatly to their value. B. sua- 

 veolens has smooth stalks and leaves, which distinguish it 

 from the last, in which they are downy. B. hicolor or san- 

 guinea has orange and scarlet flowers, and bears the green- 

 house perfectly, as well as Knightii and lutea. The species 

 sanguined is tolerably hardy, and will even bear the open air 

 in a warm border, where it makes a splendid appearance, the 

 plant often being five feet high, the flowers eight inches long, 

 and their colour splendid, being of an orange-red outside 

 and fine scarlet within. Soil as for Datura. 



OESTRUM. 



Gen. Char. (Pentandria Monoggnia.) Calyx funnel-shaped ; 

 segments acute, edged ; stamens with or without a tooth ; an- 

 thers four-cornered; berry one or two-celled; seeds few, an- 

 gular. 



A genus of no great beauty, but some of the species are 

 sweet-scented ; many have been introduced into the stove, 

 principally from the West Indies, a few into the green- 

 house, as C. aurantiacum, with rather showy orange flowers, 



