124 CONIFEROUS TREES 



appears to be infested with insects owing to specks 

 of resin on the leaves. Buds are frequently formed 

 in the centre of the tufts of leaves. 



P. Banksiana, Lambert, (Synonym : P. hud- 

 sonica, Parlatore.) North-Eastern United States 

 and eastern slopes of Rocky Mountains. — This is 

 somewhat after the style of the better-known P. 

 Montana, 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. BuNGEANA, Zuccarini, North China. 1848. 

 — Where medium-sized conifers are desirable the 

 present is certainly one of the most interesting and 

 distinct in character, and, when well grown, it is a 

 species of by no means unomamental 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 in restricted situations. 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, not more than 4 inches 

 long, and, owing to their being tufted with a con- 

 siderable 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- 



