40 KEY TO GENERA AND SPECIES 



Fig. 63. 

 White Pine. 



Fig. 64. 

 Yellow Pine. 



'itch Pine. 



Pitc 



crowded and overlapping scales at- 

 tached to all sides of a common 

 (usually short) axis. 



76. Leaves 5 in a cluster. Throughout 

 our range. (Figs. 63, 67.) White 

 Pine, Soft Pine, Pinus Strobus L. 



76. Leaves commonly 3 in a cluster 77. 



76. Leaves commonly 2 in a cluster 79. 



77 



Fig. 66. 

 Loblolly 

 Pine. Leaf 

 cluster and 

 section of 

 a leaf. 



Leaves i to 3 inches long. N. J. and 



southwestward. (Fig. 64.) Yellow Pine, 

 Shortleaf Pine, Pinus echinata Mill. 



77. Leaves 3 to 5 inches long 78. 



77. Leaves 6 to 9 inches long. Southern N. J. 



