233 INDEX. 



PAGB 



IL THE INVOLUCRUM. Any kind of wrapping or propping con- 

 dition of leafage at the base of a flower may properly come 

 under this head ; but the manner of prop or protection dif- 

 fers in different kinds, and I will not at present give generic 

 names to these peculiar forms. 



IIL THE CALYX (The Hiding-place). The outer whorl of leaves, 

 under the protection of which the real flower is brought to 

 maturity. Its separate leaves are called SEPALS 59 



IV. THE COROLLA (The Cup). The inner whorl of leaves, form- 

 ing the flower itself. Its separate leaves are called PETALS . 53 



V. THE TREASURY. The part of the flower that contains its 

 seeds. 



VI. THE PILLAR. The part of the flower above its treasury, by 



which the power of the pollen is carried down to the seeds. . 58 



It consists usually of two parts the SHAFT and VOLUTE . . 58 



When the pillar is composed of two or more shafts, attached 

 to separate treasury-cells, each cell with its shaft is called a 

 CARPEL . . .162 



VII. THE STAMENS. The parts of the flower which secrete its 



pollen 58 



They consist usually of two parts, the FILAMENT and AN- 

 THER, not yet described. 



nil. THE NECTARY. The part of the flower containing its honey, 

 or any other special product of its inflorescence. The name 

 has often been given to certain forms of petals of which the 

 use is not yot 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 arranged in a 

 separate section, though not logically to be considered as 

 .QApar^hle from the flower, but only as mature states of certain 

 parts 01 *v. 



