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 green briers (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 



177. In the sweet pea (and garden pea) the leaflet* are tendrils. 



has two pairs of leaflets and a terminal leaflet. At 6 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- 



