44 



THE ROOT 



the taproot alone (Fig. 35). The Anemonella (Fig. 36), 

 flowering in early sjjring with the more familiar and 



closely related Anemone, 

 draws upon supplies of 

 food held in a cluster, or 

 fascicle, of roots. A fine 

 example of adventitious 

 roots, some of which remain 

 fibrous for absorption, while 

 a few thicken and store up 



o7. Roots of the Sweet 

 Potato. 



food for the next season's 

 growth, is furnished by the 

 Sweet Potato (Fig. 37). 



DURATION OF ROOTS 



65. Roots are said to be an- 

 nual, biennial, or perennial. 

 These terms apply also to the 

 ^Yllole plant. 



6G. Annuals, as the name de- 

 notes, live only for one year, 

 generally for only a part of the 

 year. They are of course herbs; 

 they spring from the seed, blossom, mature their fruit and seed, 

 and then die, root and all. Annuals of our temperate climates with 

 severe winters start from the seed in spring, and perish at or 

 before autumn. Where the winter is a moist and growing season 

 and the summer is dry, winter annuals prevail; their seeds germinate 



30. Anemonella thalictroides. The 

 early spring growth supplied 

 from a fascicle of storage roots. 



