Plate X. 



STEM AND LEAF. 



35 



is 



19 



21 



General subject. Describe fig. 1. Of what is it a variety ? What differ- 

 ence? What at 8? at 4? How are such plants useful? How annoying? 

 Describe fig. 2. What are the marks or dots on the tubers? On the blackened 

 taber. Describe flg. 8. What at a /at b t Describe fig. 4 How does it 



grow ? What marks ? What name ? Figs. 6 and 9, what analogy ? Fig. 7, 

 explain structure. What figure represents the Creeper, the Tuber, the Scaly 

 Bulb, the Tanicated Bulb, the Rhizoma, the Conn, the BulbletT 



