Corolla 



■Bracts 



Peduncle - , . 



TiUmentb 



Ac^ene 



CoTnposite Infloresceriee, ihowm/ ijev«.r»on 



Normal Composite Infloreicence 



DIAGRAM OF COMPOUND INFLORESCENCE 



The flower cluster shown in Fig. 18 on the preceding pajje is here outlined Iiy diagram j;i\"ing 

 the details of structure and position as compared with the structure and position of the same 

 organs in a normal composite inflorescence of this genus. Xo achenes appeared on the head 

 which showed the reversion. (Fig. 19.) 



