30 



TWINING PLANTS. 



Chap. I. 



(Dicotyledons, continued.) 



Adhadota cydoncefolia (Acanthaceae) follows the sun. A young 

 shoot made a semicircle in 24 hrs. ; subsequently it made a 

 circle in between 40 hrs. and 48 hrs. Another shoot, however, 

 made a circle in 26 hrs. 30 m. 



Mikania scandens (Compositae) moves against the sun. 



H. M. 



March 14, 1st circle was made in 3 10 



3 

 3 

 3 33 

 2 50 



(This circle was made 

 after a copious water- 

 ing with cold water at 

 47 Fahr. 



tt 



7,6th 



3t 



)) 















Combretum argenteum (Combretacece) moves against the sun. 

 Kept in hothouse. 



H* M 



Jan. 24, 1st circle was made in 2 55 

 24, 2 circles each at an 



Early in morning, when 

 the temperature of the 

 house had fallen a little. 







>> 



average of 



t an) 



2 20 



25, 4th circle was made in 2 25 



Combretum purpureum revolves not quite so quickly as 0. 

 argenteum. 



Loasa aurantiaca (Loasacese). Eevolutions variable in ther 

 course : a plant which moved against the sun. 



H. K. 



June 20, 1st circle was made in . . . 2 37 

 20,2nd 

 20,3rd 

 21,4th 

 22,5th 

 23,6th 



