104 TENDRIL-BEARERS. Cuap. IL 
hour afterwards making an angle of 106°. The two 
opposite petioles do not move together, and one is 
sometimes so much raised as to stand close to the stem, 
whilst the other is not far from horizontal. The basal 
part of the petiole moves less than the distal part. The 
tendrils, besides being carried by the moving petioles 
and internodes, themselves move spontaneously ; and 
the opposite tendrils occasionally move in opposite 
directions. By these combined movements of the 
young internodes, petioles, and tendrils, a considerable 
space is swept in search of a support. 
In young plants the tendrils are about three inches 
in length: they bear two lateral and two terminal 
branches; and each branch bifurcates twice, with the 
tips terminating in blunt double hooks, having both 
points directed to the same side. All the branches are 
sensitive on all sides; and after being lightly rubbed, 
or after coming into contact with a stick, bend in 
about 10 m. One which had become curved in 10 m. 
after a light rub, continued bending for between 3 hrs. 
and 4 hrs. and became straight again in 8 brs. or 
9 hrs. Tendrils, which have caught nothing, ultimately 
contract into an irregular spire, as they likewise do, 
only much more quickly, after clasping a support. In 
both cases the main petiole bearing the leaflets, which 
is at first straight and inclined a little upwards, 
moves downwards, with the middle part bent abruptly 
into a right angle; but this is seen in EH. minzatus 
more plainly than in E. scaber. The tendvils in this 
genus act in some respects like those of Bignonia 
