112 OBJECT LESSONS IN BOTANY. 



stems of herbs. From this word come two adjectives much 

 used and quite convenient, viz., caulescent and acaulescent / 

 the former denoting the presence of stems above-ground, the 

 latter of only underground stems. Thus the Buttercup is 

 caulescent, while the Pitcher-f)lant is acaulescent ; the Garden 

 Yiolet or Pansy is caulescent, while the wild Blue Violet is 

 acaulescent. 



236. Vine, as every one knows, denotes a slender stem, too 

 weak to stand ^lone, and supporting itself by the aid of other 

 plants or objects. Some vines are woody, some herbaceous. 

 The Hop twines itself around its supporter, turning from 

 right to left, as in Fig. 353. The Morning-glory, also, but 

 it turns from left to right (Fig. 352). Thirdly, the Grape 

 and Passion-flowerr (Fig. 351) climb by special organs, the 

 tendrils, of wonderful adaptation, showing their Maker's de- 

 sign more truly than if by an audible voice. 



336. Describe the vine. What their three varieties ? What is tile read- 

 mirable in the tendril ? 



