dande;lion. 



Ill 



were grown in the green house where they could be under con- 

 stant observation. Some of them are shown in the accompany- 

 ing figures. 



Figure 28 represents a seedhng plant of the common 

 dandelion ( Taraxacum officinale ) in its normal condition. 

 Figure 29 shows a small root cutting which is forming a new. 

 plant. Figure 30 shows a normal branching root of a mature 

 plant and figure 31a plant wnich at some time has been cut off 

 about two inches beneath the surface. It is evident that by 

 severing the numerous side roots of such plants as that 

 shown in figure 30, the crop of dandelions on the lawn will 

 be materially increased by cutting the existing plants. Figure 

 32 represents the condition many lawns exhibit after having 

 been dug freely for greens for a few years. 



Figure 32.— Effect of continued digging for "greens." 



The fall dandelion, shown in figures 33 and 34, also grows 

 readily from root cuttings; but as this plant is not used for 

 greens it is seldom spread by promiscuous digging. It seeds 

 very freely, however, and spreads rapidly in this way. 



Since digging the roots in the ordinary manner will not ex- 

 terminate the dandelion and since both species spread rapidly 



