INDEX I. 



DESCRIPTIVE NOMENCLATURE. 



PLANTS in perfect form are said, at page 29, to consist 

 of four principal parts : root, stem, leaf, and flower. 

 (Compare Chapter V., 2.) The reader may have been 

 surprised at the omission of the fruit from this list. But 

 a plant which has borne fruit is no longer of ' perfect ' 

 form. Its flower is dead. And, observe, it is further 

 said, at page 73, (and compare Chapter III., 2,) that 

 the use of the fruit is to produce the flower : not of the 

 flower to produce the fruit. Therefore, the plant in 

 perfect blossom, is itself perfect. Nevertheless, the 

 formation of the fruit, practically, is included in the 

 flower, and so spoken of in the fifteenth line of the same 

 page. 



Each of these four main parts of a plant consist nor- 

 mally of a certain series of minor parts, to which it is 

 well to attach easily remembered names. In this section 

 of my index I will not admit the confusion of idea in- 

 volved by alphabetical arrangement of these names, but 

 will sacrifice facility of reference to clearness of explana- 

 tion, and taking the ^four great parts of the plant in 



