282 FAMILIAR TREES AND THEIR LEAVES. 



the species. There are three species common in the 

 northeastern section of the country the red, black, 

 and white. The most interesting one of these is the 

 Red Spruce. red spruce.* This tree is familiar 

 Picea rubra. to those who may have climbed the 

 granite hills of New Hampshire ; nowhere else has 

 the spruce seemed to me quite so impressive, for in 



Red Spruce. 



* Botanists differ in opinion about the red spruce ; some con- 

 sider it a variety of the black spruce. In the Manual, Gray fol- 

 lows Englemann's name, Picea nigra, var. rubra. 



