CONVOLVULUS. 119 



in our gardens. The following are some of the most 

 esteemed. 



The Two-coloured ; white and purple, flowering in June, 

 July, and August. The Hairy Convolvulus, with purple 

 flowers, blowing at the same -time. These are natives of 

 the East Indies. 



The Five-petaled ; blue, with a yellow centre : native of 

 Majorca. Flowers from June to August. 



The Indigo Convolvulus, which is named from the co- 

 lour of its flowers : it is a native of America, and considered 

 one of the handsomest of the genus. The Italians call it 

 campana azurea [azure-bell], andjfor di notte [night-flower], 

 because its beauty appears most at night. A singular cir- 

 cumstance in this genus, of which most of the species close 

 their flowers at night. It blows in July and August. 



In opposition to this, the Trailing, or Tri-coloured 

 Convolvulus, is called by the French, belle de jour, Day 

 Beauty. 



Of the Major Convolvulus there are three or four va- 

 rieties ; purple, white, red, and pale blue. It is a native 

 of America. It requires support, and will grow ten or 

 twelve feet high ; continuing in flower from the beginning 

 of June till the approach of frost. 



The Minor Convolvulus is a native of Spain and Por- 

 tugal; the flowers are sometimes pure ^ white, but more 

 commonly variegated with blue and yellow, or blue and 

 white : the most beautiful kind is a bright blue, fading, by 

 delicate gradations, to a pure white in the centre. It re- 

 sembles the blue atmosphere, relieved by fleecy clouds, on a 

 fine day in summer : 



" when on high, 

 Through clouds of fleecy white, laughs the cerulean sky/' 



KEATS. 



Nor is the form of this flower less beautiful than the 



