34 PLANTING. 



Height. 



Pinus Siberica, Siberian pine . . 9 to 20 inches. 



pic/ita, pigmy pine, in pots. 

 orientalis, oriental pine. 

 Laniht'rtiuna, Lambert's pine, in pots. 

 po?iderosa, heavy wooded. 

 Araucaria imhricata, Chili pine. 

 Taxodium di.tlichum, deciduous cypress. 

 Cupressus sempervirens, upright evergreen cypress. 



thynides, white cedar. 

 Juniperus Virginiana, red cedar. 

 Thuja occidentalis, American arbor-vitse. 

 or tent a I is, Chinese. 

 plicata, Nee's. 

 Caroliniana, Lucas's arbor-vita?. 



2cl. REPRODUCTIVE TREES. Htlghl . 



Quercus, oak, different species of . from 6 to 30 inches. 



Fraxinus, ash, different species of . 6 20 



Castana, Spanish chestnut . .12 30 



/Esculus, horse chestnut . . . 12 30 



Fagus, beech . . . 6 20 



Betula, birch . . . . 9 30 



Alnus, alder . . . . . 6 24 



Carpinus, hornbeam . . 6 24 



Platanus, plane . . . 12 30 



Acer, sycamore . . . 6 30 



Maple common . . 6 24 



Norway . . . . 6 24 



Grafted and layer reared species . .12 36 



Tilia, lime, common, and others . . 12 36 



Ulmus, elm, wych . . . 9 30 



Grafted and layer reared species . .18 36 



Populus, poplar, different species of . .18 36 



Salix, willow tree, species of. 



Those species which are mentioned as raised in pots for transplanting, 

 except the cedars and a few others, are as yet considered merely orna- 

 mental trees, the period of their introduction not having allowed sufficient 

 time to prove their properties or comparative value as timber trees. It 

 is highly desirable to plant them, with a view to ascertain that point, 

 several of them being highly valuable in their native countries. The 

 pinus Lambertianahas been found to have attained to the growth of 200 

 feet in height, and 57 feet in circumference*. 



Modes of transplanting. Much difference of opinion prevails on the 

 comparative merits of the different methods of planting from time to time 

 introduced, and more or less practised. Trenching is held by some to be 

 ntial to success, without considering that there are situations and soils 

 where timber of the most valuable quality may be produced that cannot 

 be dug or trenched. Others again in lor, that to insert seedling plants into 

 the soil in its natural state is all that is required for the production of 

 timber and underwood possessing every requisite value. 



These opinions are too exclusive; they have led to baneful effects, and still 

 are the cause why many extensive tracts of land lie waste, which other- 



c might have been covered with profitable plantations. But in more 



* Transactions of the Linnean Society of London, vol. XT. Part II. p. 498. 



