KEY TO GENERA AND SPECIES 41 



southward along the coast. (Fig. 66.) 

 Loblolly Pine, Old-field Pine, Pinus Taeda L. 



i: - !^IH 



Fig. 67. White Pine. 



78. Sheaths at the base of the leaf-clusters short. 

 Cone scales with a short rigid prickle at the 



Fig. 68. Pitch Pine. 

 tip. New Brunswick southwestward. (Figs. 



65, 68.) Pitch 

 rigida Mill. 



Pine, Hard Pine, Pinus 



