GENUS PINUS. 81 



bark on the older portions of the tree. In this country the tree 

 is of neat growth, and though the annual increase in height is 

 quite slow, yet the leading shoot is preserved, and the branches 

 are regularly arranged for the full length of the bole. 



P. Balfouriana aristata, growing alongside the 

 former tree, is somewhat distinct, especially in the uniform 

 light green of the leaves, these also being, for the greater 

 part, longer than those of the species. The same arrangement 

 of foliage is noticeable in both. 



P. Banksiana, Lambert. {Synonym : — P. hudsonica, 

 Poiret.) North-Eastern United States and eastern slopes of 

 Rocky Mountains. — This is somewhat after the style of the 

 better known P. inontana, forming in this country a low, 

 straggling tree rarely more than 20 feet in height. It forms no 

 continuous trunk, but instead a number of thickened, gnarled, 

 and twisted branches, the branchlets being sparingly supplied 

 with light green leaves, arranged two in each sheath. This 

 tree succeeds well in stony or rocky ground, for covering 

 which it has been found of value. 



P. Bung-eana, Zuccarini. North China. 1846.— Where 

 medium-sized conifers are desirable the present is certainly 

 one of the most interesting, and, when well grown, it is a 

 species of by no means unornamental appearance. In a young 

 state it is of narrow outline, but with age gradually becomes 

 more spreading, the lower branches lengthening out. The 

 latter are, however, very apt to die off if the specimen is at all 

 confined. The bark is light grey in colour, and peels off at 

 stated intervals, this being a peculiar characteristic of the 

 tree. The leaves are arranged three in a sheath, are perfectly 

 rigid, and not more than 4 inches long, and, owing to their 

 being tufted and a considerable space between each of the tufts, 

 an unusual but very distinctive appearance is thus imparted. 

 They are of a bright and pleasant green. The cones are ovoid, 

 2 to 2\ inches long, with flattish-topped scales terminated by a 

 small hooked prickle. The finest specimens that I have seen 

 are growing in peaty soil in the open portion of a woodland 

 in Ireland. 



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