THE FLOWER. 107 



The question Pistil? is now added to the sched- 

 ule, and is to be answered in the same way as the 

 questions Perianth? and Stamens? First write the 

 name of its parts underneath, and then find out, if 

 you can, the number of carpels that compose the 

 ovary. It is sometimes quite difficult to do this, but 

 it is well always to make the effort. When the car- 

 pels cannot be distinguished, you determine their 

 number by counting the styles, and, if these are 

 grown smoothly together, then count the lobes of the 

 stigma. It is very seldom that this part of the pistil 

 is so coherent that the lines of union are invisible. 

 You can often, in this way, find out the number of 

 carpels in a pistil, when every other means fails. In 

 describing the various forms of style no new terms 

 are needed. 



EXERCISE XLIV. 

 Parts of the Petals. 



FIG. 199. 



-Limb. 



-Claw. 



LIMB. The upper, and usually the broadest and 

 thinnest, part of a petal. 



CLAW. The lower part of a petal, which attaches 

 it to the receptacle. 



