Cuap. IIL, . BIGNONIACEA, 97 
last in the structure and movements of its tendrils. I 
also casually examined a fine growing plant of the 
allied B. Lindleyi, and this apparently behaved in all 
respects in the same manner. 
Bignonia capreolata—We now come to a specics 
having tendrils of a different type; but first for the 
internodes. A young shoot made three large revolu- 
tions, following the sun, at an average rate of 2 hrs. 23 m. 
The stem is thin and flexible, and I have seen one 
make four regular spiral turns round a thin upright 
stick, ascending of course from right to left, and 
therefore in a reversed direction compared with the 
before described species. Afterwards, from the inter- 
ference of the tendrils, it ascended either straight up 
the stick or in an irregular spire. The tendrils are 
in some respects highly remarkable. In a young 
plant they were about 2} inches in length and much 
- branched, the five chief branches apparently repre- 
senting two pairs of leaflets and a terminal one. Each 
branch is, however, bifid or more commonly trifid towards 
the extremity, with the points blunt yet distinctly 
hooked. A tendril bends to any side which is lightly 
rubbed, and subsequently becomes straight again ; 
but a loop of thread weighing ith of a grain produced 
no effect. On two occasions the terminal branches 
became slightly curved in 10 m. after they had touched 
astick; andin 80 m. the tips were curled quite round 
it. The basal part is less sensitive. The tendrils re- 
volved in an apparently capricious manner, sometimes 
very slightly or not at all; at other times they 
