1 48 THE PRINCIPAL SPECIES OF WOOD. 



yf Bull Pine, Yellow Pine, Western Yellow Pine. 



Pin us ponder osa Laws. 



Nomenclature. (Sudworth.) 



Big Pine. Heavy-wooded Pine, 



Longleaved Pine. Western Pitch Pine. 



Red Pine. Heavy Pine (Calif.). 



Pitch Pine. Foothills Yellow Pine. 



Southern Yellow Pine. Montana Black Pine. 



Locality. 



Rocky Mountains, westward intermittently to Pacific Ocean. 



Features of Tree. 



One hundred to sometimes three hundred feet in height, six 

 to sometimes twelve feet in diameter. Thick, deeply furrowed 

 bark. Leaves in tufts of threes. 



Color, Appearance, or Grain of Wood. 



Thin heartwood is light red, sapwood nearly white. Rather 



coarse grain, compact structure. 

 Structural Qualities of Wood. 



Variable, heavy, hard, strong, brittle, not durable. 



'V'" Representative Uses of Wood. 



Lumber, railway ties, mine timbers, fuel, etc. 



Weight of Seasoned Wood in Pounds per Cubic Foot. 



29. 

 Modulus of Elasticity. 



1,260,000. 

 Modulus of Rupture. 



10,200. 



Remarks. 



Ponderosa, signifying "heavy," refers to great size. Trees are 

 often killed by beetles (Dendroctonus ponderosce) and the wood 

 of such trees later assumes a bright blue color, due to fungi 

 introduced or enabled by the beetles. These " blue woods " 

 can be used for some purposes. (Also see von Schrenk, U. S. 

 Bureau Plant Industry No. 36.) 



Pond Pine (Pinus serotina) is the Marsh Pine of the woodsman, but it 

 is not distinguished at the mills where it really furnishes much of the 

 lumber that is marked North Carolina Pine. The Pond Pine grows 

 along the Atlantic Coast from Albermarle Sound south to Florida. It is 

 almost constantly in sight of the railway trains. The six or eight inch 

 long leaves are in tufts of three. The cones sometimes remain on the 

 trees for several years. The trees are now bled for turpentine. Other 

 names are Meadow, Loblolly, Spruce, Bastard, and Bull Pine. (Also see 

 Roth Forestry Bulletin No. 13.) 



