28 



ELEMENTS OF STRUCTURAL BOTANY. 



In the j)resent instance, they are inserted upon the 

 low-er part of the calyx, and so they are described as 

 perirjijiwus, a term meaning " around the pistil," 



37. But the pistil (Figs. 38, 39) is not attached to 

 the calyx. It is free, or superior. If you cut the ovary 

 across, you will observe there is but one cell, and if you 

 examine the stigma, you will find that it shows no sign 

 of division. You may therefore be certain that the 

 pistil is a single carpel. 



You are now prepared to fill up the schedule descrip- 

 tive of this flower. 



GAEDEN PEA. 



38. The beginner will be very likely to think, from 

 its appearance, that the largest of the jietals is made 

 up of two coherent ones, but the following considera- 

 tions show clearly that this is not the case. In the 

 Buttercup, and other flowers in which the number of 

 "epals and petals is the same, the petals do not stand 



