SELECTION OF PLANTS. 135 



410. ROBINIA HISPIDA, or Rose Acacia. 



This is a hardy shrub, and very beautiful ; it blows in 

 May, with a rose-coloured blossom : it requires rather a 

 good soil, and is propagated either by seed or layers. It 

 should be planted in an open situation, so that no other 

 tree should hang over it, to injure the bloom. 



It is a native of Carolina, and first brought to Eng- 

 land in 1758. 



It belongs to the 17th Class, under the head " Diadel- 

 phia Decandria." 



411. PRUNELLA LACIMATA, or Cut-leaved Self-heal. 



This is a hardy Perennial, which blows in July and 

 August, with a blue and white blossom, it requires rather 

 a strong soil, and a shady aspect, and is increased by part- 

 ing the roots in the spring. 



It is a native of Germany, and first brought to England 

 in 1713. 



It belongs to the 14th Class, under the head " Didyna- 

 mia Angiospermia." 



412. PULMONARIA AXGUSTIFOLIA, or Narrow-leaved 

 Lung-wort. 



This is also a hardy Perennial, which blows with a pur- 

 ple blossom in April and May ; the soil is of little conse- 

 quence, but it requires a shady aspect, and is propagated 

 by parting the roots in the spring. 



It is a native of Europe, and was first brought to Eng- 

 land in 1731. 



It belongs to the 5th Class, under the head " Pentan- 

 dria Monogynia." 



