DICOTYLEDONE^E. 83 



during which runners are detached, and the branches 

 are advanced by displaying- a new set of leaves, pre- 

 paratory to yielding- flowers and fruit in the third year; 

 in which season they also send forth runners, and 

 numerous side branches, intended to extend the stool 

 in all directions around. But it appears that, as the 

 flowers are terminal, a bud cannot yield two crops ; 

 and as every new set of succession branches becomes 

 more and more diminished in strength, cultivators 

 find that the original plants are not profitably 

 kept after yielding- two crops, unless they are well 

 dressed, and enjoy a favourable soil. So that it is 

 only the produce of the principal bud, and that of 

 the first set of branches in the third year of the 

 plant's existence, that are considered as compensating 

 for the trouble of cultivation. The runners sent off 

 from the main body of the stool eject roots of their 

 own, and soon become independent of the parent 

 plant. The Leguminosce are a most conspicuous 

 order. Their papilionaceous flowers and curiously 

 shaped pods distinguish the greater number of them 

 from all other plants. This order contains some of 

 our most elegant trees and shrubs, and our wastes are 

 enlivened by the golden-flowered broom, and ever- 

 flowering furze. The most inconsiderable herbs, and 

 the most stately trees, are also found in this order. 



In the sub-class Thalimiflorcs we see only, as in the 



preceding, variety of forms and qualities without any 



striking physical differences. We may, however, 



notice Impiitiens, merely for the purpose of alluding 



G 2 



