ON Drosera rotundifolia 



17 



The results of the three successive reactions of this tentacle 

 are summarized in Table VI. The increase in length for the 

 three reactions was 0.43 mm., 0.37 mm. and 0.24 mm. The 

 region of most intense growth moved basally. In the first reaction 



Table VI 



it was in Segments 4 and 5 ; in the second in Segment 5 ; and in 

 the third in Segment 6. The ultimate stages of bending in the 

 three reactions are shown in Fig. i i. In each subsequent inflexion 



Fig. II. The ultimate stages in three successive inflexions of the same tentacle, 

 X 22. a, at the end of the first inflexion; b, at the end of the second inflexion; e, 

 at the end of the third inflexion. 



