150 
LEIANTHUS NIGRESCENS. 
In the following spring place the plants in their flowering-pots, in a mixture 1 
equal parts of loam and heath-mould, with a little sharp sand to keep it open, an 1 
be careful to give a good drainage with potsherds. 
If grown in a moist atmosphere with plenty of light and heat, they will by Jun 
be three feet or more high, and will begin to show signs of flowering. When i 
bloom they are very striking and singular objects, in consequence of the very dar 
blue of the flowers ; remove them at this time to the greenhouse, and by shadin 
from the sun, the flowers will continue in perfection a long time. 
Cuttings of the young wood strike most readily if planted in pots of sand an 
placed under a handglass in a little heat. They are also increased by seeds, whin 
ripen freely. 
The generic name was given by Grisebach from leios smooth, and anthos a flowei 
The corolla is regular, which distinguishes it from Lisianthus, with which genus i 
was formerly incorporated. 
