486 



S\'}icot\loiis Races. 



preferably with seedlings which did not differ much from 

 those of the main culture. These have, however, prac- 

 tically always exhibited no more than slight deviations; 

 and where these happened to be exceptionally large, the 

 cause of the deviations has remained obscure. As a rule, 

 we may assume that favorable conditions increase the 



Fig. 102. HcUanthns auuuus syncotyleus. The first leaves 

 of syncotylous seedlings. A, a leaf of the first pair with 

 three peaks and inserted above the syncotyl ; B, a leaf 

 with two peaks placed opposite the syncotyl ; C, a leaf 

 with two peaks above the first pair of leaves. 



hereditarv values; but onlv to an inconsiderable extent, 

 and especially so within the relatively narrow limits of 

 the scale on which our plant can be cultivated in the 



garden. 



In 1892, and at other times, I also collected the seeds 

 from the flowers on lateral branches ; both the flower- 

 heads and their fruits are smaller here than at the top of 



