292 LIF'E MOVEMENTS IN PLANTS . ' 



after stimulation, where the curve is far more erect than 

 that of th«^ normal rate of growth before stimulation. 



Fui. 104. — Variation of growth induced by direct stimuiation. Firat part of the 

 curve showB normal rate of growth. Direct stimulation induces contraction (reversal 

 of curve). After-effect of stimulus seen in highly erect curve in upper part of record, 

 taken 20 minutes after. 



The effects of Indirect and Direct stimulation of the 

 tendril are summarised below : 



(1) Indirect stimulation induces a sudden enhancement 

 of rate of growth, followed by a recovery of the 

 normal rate. 



