248 INDEX I. 



PAGE 



given to certain forms of petals of which the 

 use is not yet known. No notice has yet been 

 taken of this part of the flower in Proserpina. 



These being all the essential parts of the flower itself, 

 other forms and substances are developed in the seed as it 

 ripens, which, I believe, may most conveniently be ar- 

 ranged in a separate section, though not logically to be 

 considered as separable from the flower, but only as 

 mature states of certain parts of it. 



V. THE SEED. 



I must once more desire the reader to take no- 

 tice that, under the four sections already defined, the 

 morphology of the plant is to be considered as complete, 

 and that we are now only to examine and name, farther, 

 its product ; and that not so much as the germ of its 

 own future descendant flower, but as a separate substance 

 which it is appointed to form, partly to its own detri- 

 ment, for the sake of higher creatures. This product 

 consists essentially of two parts : the Seed and its Husk. 



I, THE SEED. Defined 220 



It consists, in its perfect form, of three parts 222 



These three parts are not yet determinately named in 

 the text : but I give now the names which will be usually 

 attached to them. 



A. The Sacque. The outside skin of a seed .... 221 



