154 



longer than they do in the others we have examined? Study 



the cones of these and other pines. 



The Scotch and Austrian pines are not native to this country, 



but are much grown for ornament. They can be found in almost 



any park, and in man}^ other places where ornamental trees are 



grown. 



The Norway spruce. 



The leaves of spruce trees are borne very differently from 



those of the pines. Instead of being in clusters of two or more, 



they are single 



and without a 



sheath at the 



base; neither are 



there scale-like 



bodies on the 



branches where 



the leaves are 



borne. Notice, 



too, that the 



leaves have a 



very short stem 



or petiole. 



The leaves of 



the Norway 



spruce are about 



one inch long, 



although the 



length varies 



more or less in 



different parts of 



the tree and in 



different trees. 



They are rather 



stiff and rigid 



and sharp- 



One-third natural size. 



45. Austrian pine 



pointed. In a general way, the leaves are four-sided, though 

 indistinctly so. 



It will be interesting to study the position which the leaves 



