448 MODIFIED CIRCUMNTJTATIOX. CHAP. VIH. 



have watched for a fitting opportunity and to have 

 traced the movement of the leaves whilst they were 

 fully exposed to the sunshine, we did not ascertain 

 whether paraheliotropism always consisted of modi- 

 fied circumnutation ; but this certainly was the case 

 with the Averrhoa, and probably with the other species, 

 as their leaves were continually circumnutating. 



