WOODS AND PLANTATIONS. 



447 



its natural state extends the chief portion of its roots in a horizontal 

 direction and near the surface, in search of food, especially the coni- 

 ferous tribe. When they are reared in pots, a downward tendency is 

 given to the roots, which they afterwards retain to a great degree ; and 

 this tends to send the roots into the subsoil, where they cannot derive 

 such an amount of food as they do at the surface. Fig. 126 shows the 

 state of the roots of a tree which has been confined in a pot, and fig. 127 



Fio. 126. J-JQ 127. 



shows the roots well formed. Plants thus reared in pots never get such> 

 a firm position in the soil as those which are reared in the open ground. 

 No harm can take place when grown for one or two years in pots, but 

 they certainly should not be kept longer. 



The coniferous tribe is reared from cuttings, grafts, and seed. The 

 latter should of course be always chosen. Plants reared from cuttings 

 can be easily known from their flat, one-sided appearance. Autumn is 

 the best season of the year for planting coniferous trees ; and this should 

 be done in moist weather, and not when there are dry cold winds. They 

 may be removed at other seasons of the year, but the season named is, 

 in my opinion, the best for general work. It may be useful to give a 

 detailed statement of the different coniferous plants suited to different 

 soils, as where different soils exist, it is advisable to procure those trees 

 which are likely to succeed best on each : 



PLANTS SUITABLE FOR EXPOSED SITUATIONS. 



Pinus Atistriaca. 

 CemJbra. 

 inops. 

 Laricio. 

 Mugho. 



Pinus pinaster. 

 Pumilo. 

 strobus. 

 sylvestri*. 

 Tcfda. 





