52 Plants and their Ways in South Africa 



fifths and eighths alone are enough for me. I mark the 



5 8 



FIG. 58. Phyllotaxy apparatus. 



fifths with blue pencil, and the eighths with red. Side vie< 



FIG. 59. 



Now cut leaves of various sizes and number them in order, 

 the smallest being i for 

 convenience' sake, 

 though, of course, it is 

 the last in growth. Cut 

 the leaf thus 

 FIG. 60. " Roll up the paral- 



lelogram to form a petiole. These petioles will slip into the 



