FLOWER-CLUSTERS l6l 



3^3. 1231*1.32 1. 



1 r 



Fig. 221. — Forms of Centripetal Flower-clusters. 



I, raceme; z, spike; 3, umbel; 4, head or anthodium; 5, corymb. 



Fig. 222. — Centripetal Inflorescence, ^i?«/i«ai?rf. 



6, spadix; 7, compound umbel ; 8, catkin. 



Fig. 223. — Centrifugal Inflorescence. 



1, cyme; ^y scirpioid raceme (or half cymel. 



