SHOOTS 
61 
list of climbers. In this case the stems are too weak to 
stand alone, but by interlacing with one another they may 
keep an upright position. There are stems, also, which 
climb by twining about their support, as the hop vine and 
FIG. 51. A cluster of smilax, showing the tendrils which enable it to climb, and also 
the prickles. After KERNER. 
morning glory ; others which put out tendrils to grasp the 
support (see Figs. 51, 52), as the grapevine and star 
cucumber ; and still others which climb by sending out 
suckers to act as holdfasts, as the woodbine (see Figs. 53, 
54). In all these cases there is an attempt to reach towards 
