104 



SCIENTIFIC AGRICULTURE. 



Fig. 12. Fusiform, or spindle shaped roots, consist of a 

 fleshy stock, tapering downwards to its extremity, 

 sending off fibrils, which are its true roots: such 

 are the raddish, carrot and parsnep. Fig. 12. 



The napiform root is a variety of 

 the fusiform, in which the neck or, 

 upper part swells out, so that its' 

 diameter equals or exceeds its 

 length. The turnip and turnip- 

 raddish are examples. Fig. 13. 



Fibrous roots are made up 

 of numerous small thread-like 

 roots, attached directly to the 

 stalk, without any neck or main 

 root : such are the roots of most 

 grasses. Fig. 14. 



Fasciculated roots differ from 

 the fibrous in having some of their fibres thickened and fleshy, 

 as in the dahlia and peony. 



Tuberous roots consist of fleshy, roundish knobs or tumors, 

 Fi s 15 - at or near the extremity of the stalk, as in 



the orchis : " the potato was formerly classed 

 among tubers, but as it uniformly bears 

 buds, it is classed among stems." Fig 15. 



Granulated roots consist of many small 

 rounded bulbs connected together by fibres, 

 as in the common wood sorrel. 



Fig 16. 



Fig. 16. 



