380 APPENDIX. 



tude of Boston. The foliage is light green, and very delicate. 

 2d, *\White Cedar, (Cupressus thyoides,) a tree which rises, with a 

 very straight trunk, from seventy to eighty feet; the leaves are flat- 

 tened and branching ; a beautiful evergreen tree. 



11. {ExM. Ulmus. Scotch Elm, Wych Elm. Ulmus montana. 

 The leaves are large, oval, acuminate, pointed, serrated. The 



tree grows erect, and sometimes attains an enormous size. The bark 

 assumes a black cast. The timber is very valuable. 1. American 

 Elm. (U. Americana.) The growth of this variety is very irregular ; 

 it attains a large size and height, and the branches droop like the 

 willow. It rises sometimes to a hundred feet. 2. Red Elm. Slip- 

 pery Elm. (Ulmus rulrra.) Another handsome variety. The bark 

 of the red elm is medicinal ; it is highly nutritious, and is capable 

 of sustaining human life. 3. Cork Bark Elm. (U. suberosa.) All 

 these varieties are fine for avenues and lawns. 4. Ulmus ejfusa. A 

 remarkable tree, distinguished from all others, both in winter and 

 summer. A new variety. 



12. {{LiME, or LINDEN. Tilia. 



The European Linden rises in an elegant and pyramidal form. 

 The American, or bass wood, has a round head ; the leaves are large, 

 alternate, round, obtusely pointed, cordate, serrated; the blossoms, 

 though not showy, have a sweet and highly-fragrant odor. Both 

 varieties are of rapid growth, and form fine shades for streets and 

 lawns. The wood is light, soft, and not liable to split. The Tilia 

 of Holland is another beautiful European variety, with red wood. 

 Raised from seeds and layers. 



13. "{HEMLOCK. Pinus Canadensis. Weeping Spruce. 



An elegant tree, and neglected for no other reason than because 

 it is so common. The foliage is very delicate. The tree rises from 

 seventy to eighty feet. The bark is used in tanning leather. Raised 

 from seeds. 



14. {{LARCH. Pinus larix, Larix Europea, 



Sometimes called Scotch Lurch. This is a noble tree, of a pyramidal 

 form, and larger and more valuable than the American variety. Its 

 branches are disposed in stages, and grow in a horizontal direction ; 

 it is of extremely rapid growth, will flourish in almost any soil, and 

 resists the severest cold ; a beautiful tree while in leaf; its timber 

 is valuable, and of great durability. As the tree advances, the 

 branches droop, growing somewhat pendent; it then becomes a splen- 

 did tree, and incomparably more beautiful than the American va- 

 riety. This tree is said to be cultivated in England, for timber, to a 

 far greater extent than all other trees beside, and is thought to be 

 the most valuable of all timber trees grown in Britain, from its rapid 

 growth, and great strength and durability. It serves for a great 

 variety of uses, and answers many of the purposes of oak. 



15. {AMERICAN LARCH, or HACMATAC. Pinus microcarpa. 

 This tree is of rapid growth ; it attains to the height of eighty or 



one hundred feet. The tree is beautiful while in blossom and in 

 leaf, and has a sweet odor. The timber is heavy, very strong, and 

 exceeding durable 



