BEHAVIOUR OF CLIMBING PLANTS 153 
end of the tendril now coils round the object if it is 
not too large. If you watch a tendril from day to 
day after it has caught hold, you will see that it finally 
curls up into a beautiful coiled spring. Consult Fig. 
122 to see how 
you can imitate 
3 ooong $2 
the action 3 of a SO mos ARS / 
tendril with a ) Ess > af 
_ strip of dandelion ) Se A | ZAUES 
stem. | ‘st §\ =s ma 
Many vetches y 2 AD \\ 
3 \\ \\ \ WS As 
possess delicate ff D> Yi ,\ 4 ) 
tendrils at the . iy ae 
ends of their yy UZ 
leaves. ‘These . : EY 
. DAL Y/— : 
grasp their y Oh : 
Su PPOFLS 750 INL 
tenaciously \\ , 
that it is often xe | 
quite impossible | f ( Ns 
to separate . 
the plants from Fic, 189, Vetch with tendrils at ends of its leaves. 
the grasses or | 
other plants they have fastened on to without injuring 
the tendrils or their support. Collect some vetches 
and compare them to see how much of each leaf is 
turned into tendril, 

