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. Never- 

 theless, 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 con- 

 sist normally 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 



