46 WEST-AMERICAN 



RECAPITULATION OF THE GROUPS 

 OF PINES. 



Genus PINUS True Pines. 



Sub-Genus Strobus, -Soft Wood or 

 White Pines. 



Group 1. Long-Cone Lumber Pines . . Elongates 

 " 2. Alpine White Pines ..... Alpince 



Sub-Genus Pinaster, Hard-Wood 

 Pines. 



Section 1. Sub-terminal-coned Pines . . Terminates 



Sub-Sec. 1. Short-Leaved Pines . . Brachypliyllyz 



Group 1. True Nut Pines Edules 



" 2. Plume-Branched Pines . . Plumosce 



" 3. Thimble-Cone Pines . . . Parviconce 



Sub-Sec. 2. Broken-ConeLumberPines Fracticonm 



Group 1. Common Lumber Pines . Communes 



" 2. Little-Known Pines .... Novitates 



Section 2. Lateral-Coned Pines .... Laterales 



Group 1. Heavy-Coned Pines . . . . Graves 



" 2. Closed-Cone Pines . Serotince 



