346 SYLVA AMERICANA. 



Height. 



Pinus rigida, Pilch Pine, 6 " 20 



Piniis rubra, Red or Norway Pine, . . . . 6 " 18 



Pinus serotina, Pond Pine, 6 " 18 



Pinus strobus, White Pine, . 12 " 36 



Pinus toedia, Loblolly Pine, 6 " 18 



Thuja occidentalis, American Arbor Vita, . . . 9 " 20 



.. 



u 



a 



a 



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2d. Reproductive trees. 



Acer nigrum, Black Sugar .Maple, 

 Acer sacchaninum, Sugar Maple, 

 Carpinus americana, American Hornbeam, 

 Carpinus ostrya, Iron Wood, 

 Castanea vesca, American Chesnut, 

 Fagus ferruginea, Red Beech, 

 Fagus sylvestris, IVhite Beech, 

 Fraxinus, Ash, different species of, 

 Juglans, Hickory, different species of, 

 Platanus occidentalis, Button Wood, 

 Quercus, Oak, different species of, 

 Salix, Willow, species of, 

 Tilia, Lime, and other species, 



Budding, or grafting by gems, consists in taking an eye or bud 

 attached to a portion of the bark, of different sizes and forms, 

 and generally called a shield, and transporting it to a place in 

 another, or a different vegetable. It may be performed with buds 

 of two or three years' standing, and on trees of considerable 

 size, but not generally so. The object in view in budding is 

 almost always that of grafting, and depends on the same princi- 

 ple ; all the difference between a bud and a scion being, that a 

 bud is a shoot, or scion, in embryo. In all other respects, bud- 

 ding is conducted on the same principle as grafting; 



The operation of common budding may be performed any 

 time from the beginning of July to the middle of August ; the 

 criterion being the formation of the buds in the axil of the leaf of 

 the present year. The buds are known to be ready by the 

 shield or portion of bark, to which they are attached, easily part- 

 ing with the wood. The buds preferred are generally those on 

 the middle of a young shoot, as being neither so apt to run to 



