125 



LECTURE IV. 



VEGETABLE ORGANIZATION. THE ROOT ITS SITUA- 

 TION, SPECIES, AND VARIETIES DIRECTION AND 



DURATION. 



HAVING endeavoured to give you some idea of the 

 general components of the vegetable body, I have 

 now to describe to you the organs formed by the 

 combination of these constituents. 



Every plant, as I have already stated, possesses 

 two sets of organs. One of these is intended 

 merely for the growth and preservation of the in- 

 dividual ; the other for the propagation, and, con- 

 sequently, the continuation of the species : or' 

 all plants are endowed with CONSERVATIVE and RE- 

 PRODUCTIVE organs. 



If we dig up a tree or a shrub in the summer, 

 when it is in flower, and some of the fruit is al- 

 ready formed, an Orange-tree for example, which 

 bears flowers and fruit at the same time, we have, 

 in one plant, a complete display of these parts. 

 In the first set are comprehended the root, the 

 trunk, the branches, and the leaves, with their 

 appendages ; in the second, the flower and the 

 fruit, with their appendages. Many phytologists 

 regard those species of plants only, which possess 



