32 



FLOWERS 



In complex flower clusters combinations of the simpler types 

 of clusters often occur together. Thus, in the thyrse, the complex 

 cluster which is typical of the Lilac and Horse-Chestnut, and, in 



a 



d e f 



S 



FIG. 34. Upper diagrams show types of indeterminate inflorescences, 

 a, raceme; 6, corymb; c, compound corymb; d, umbel; e, spike; /, panicle; 

 g } head. 



Lower diagrams show types of determinate inflorescences; h, cyme half 

 developed (scorpioid); i, flat-topped or corymbose cyme; j, typical cyme. 



the panicle of the Grasses, the characteristics of both racemes and 

 cymes are present. (Fig. 33.) 



The diagrams in Figure 34 show the common types of flower 

 arrangements. 



