No. 517] A BIMODAL VARIATION POLYGON 



23 



minal flower and two axillary flowers is shown in Figs. 1 

 to 5. In our series we find all cases from those with both 

 leaves simple to those with both leaves ternately com- 

 pound. 



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In the next group of inflorescences an extra leaf is 

 added. The additional axillary bud thus introduced 

 raises the normal number of pedicels to four. Among the 

 inflorescences with a whorl of three leaves I found none 

 in which at least one of the leaves was not ternatelv com- 



