CLIMBERS 



115 



two normal leaflets and two or three pairs of leaflet-tendrils 

 and a terminal leaflet-tendril. The cobea, a common gar- 

 den climber, has a similar arrangement. In some cases 

 tendrils are stipules, as probably in the greenbriers (smilax). 

 241. The petiole or midrib may act as a tendril, as in 

 various kinds of clematis. In Fig. 178, two opposite leaves 

 are attached at a. Each leaf is pinnately compound and 



In the sweet pea (and garden pea) the leaflets are tendrils 



has two pairs of leaflets and a terminal leaflet. At b and 

 c the midrib or rachis has wound about a support. The 

 petiole and the petiolules may behave similarly. Examine 

 the tall-growing nasturtiums in the garden. 



242. Twiners. — The entire plant or shoot may wind 

 about a support. Such a plant is a twiner. Examples 

 are bean, hop, morning-glory, moon-flower, false bitter- 

 sweet or wax- work (celastrus), some honeysuckles, wis- 



