228 BOTANY. 



The inflorescence is termed cymose, or definite, or deter- 

 minate inflorescence because the growth of each axis is 

 stopped by the formation of a flower. 



Fig. 200. 

 Single umbel of the wild carrot. 



1. Monochasium ; only one lateral branch is produced 



from each relative or false axis. 



Helicoid cyme; when the successive lateral branches 

 always arise on the same side of the false axis, as in 

 flower clusters of the forget-me-not. 



Scorpioid cyme; when the lateral branches arise alter- 

 nately on opposite sides of the false axis. 



2. Dichasium; each relative, or false, axis produces two 



branches, often forming a false dichotomy. Ex- 

 amples in shoots are found in the lilac, where the 

 shoot appears to have a dichotomous branching, 

 though it is a false dichotomy. 

 Forking cyme; flower cluster of chickweed. 

 j. Pleiochasium; each relative, or false, axis produces 



more than two branches. 



373. The fruit. In some cases the single seed itself forms 

 the fruit as is the case with nuts, sunflower seeds, etc. In 

 other cases several seeds ripen inside of a single pistil as in the 



