440 



CORK-SOREWED ROOTS. 



either case, if such plants are turned out of their pots in a 

 conservatory, or in the open ground, with a view to their future 

 growth in a state of liberty, new roots will be made with 

 difficulty, and it will be a long time before the effects of growth 

 in the free soil wiU be apparent. Where the spiral or cork- 

 screw direction has been once taken by the roots, they are very 

 apt to retain it during the remainder of their lives; and if, 

 when they have become large trees, they are exposed to a gale 

 of wind, they readily blow out of the ground, as was continually 

 happening with the Pinasters some years ago, when the 

 nurserymen kept that kind of Fir for sale in pots. In all such 

 cases as these, the roots should be carefuUy disentangled and 

 straightened at the time when transplantation takes place. To 

 prevent the possibility of this occurrence it is not unusual to 



place trees intended for 

 transplantation in old 

 baskets. Through their 

 wicker sides the roots 

 readily penetrate, and 

 when this has happened, 

 the half decayed baskets 

 are lifted and "potted" 

 in other baskets of a 

 larger size. 



The annexed sketch of 

 the root of a Laricio, taken 

 up at Hatfield, by Mr. 

 William Ingram, the gar- 

 dener there, after having 

 been planted ten years, 

 illustrates the effects of 

 corkscrewing better than 

 any description. 



Under ordinary cir- 

 cumstances a potted plant 

 when young, is placed in 

 as small a pot as it will grow in, and is transferred from time 

 to time to larger pots as it advances in size. If this is done. 



Fig. XOVI.— Boot of Piuus Laricio. 



