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-plant is acaulescent ; the Garden 

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

 acaulescent. 



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

 weak to stand alone, 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-flower (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. 



236. Describe the vine. What their three varieties ? What is the read 

 mirable in the tendril ? 



