I4 6 THE PRINCIPAL SPECIES OF WOOD. 



_.. ( Pinus echinala Mill. 

 Shortleaf Pme, Yellow Pine. pimu ^ Mlchx 



pimu ^ Mlchx 



Nomenclature. (Sudworth.) 



Common Yellow Pine, Hard Rosemary Pine (N. C.). 



Pine. Virginia Yellow Pine. 



Spruce Pine (Del., Miss., North Carolina Yellow Pine. 



Ark.). North Carolina Pine. 



Bull Pine (Va.). Carolina Pine. 



Shortshat Pine (Del.). Slash Pine. 



Pitch Pine (Mo.). Old Field Pine. 



Poor Pine (Fla. ). 

 Shortleaved Yellow Pine 



(N. C.). 

 Locality. 



Connecticut to Florida, westward intermittently to Kansas and 



Texas. 

 Features of Tree. 



Sixty to sometimes ninety feet in height, two to sometimes 

 four feet in diameter. A large erect tree; small cones have 

 minute weak prickles. Leaves usually in twos from long 

 sheaths. 



Color, Appearance, or Grain of Wood. 

 Resembles longleaf and loblolly pines. Variable appearance in 



cross section, wide annual rings near heart. 

 Structural Qualities of Wood. 



Variable, usually hard, tough, strong, durable, resinous, lighter 



than longleaf and loblolly pines. 

 Representative Uses of Wood. 



Lumber, construction, similar to longleaf pine. 

 Weight of Seasoned Wood in Pounds per Cubic Foot. 

 32 (U. S. Forestry Div.).* 

 30. 

 Modulus of Elasticity. 



1,680,000 (average of 330 tests by U. S. Forestry Div.).* 

 1,950,000. 



Modulus of Rupture. 



10, 100 (average of 330 tests by U. S. Forestry Div.).* 



14,700. 

 Remarks. 



Affords considerable pitch and turpentine, and is the principal 

 species of Northern Arkansas, Kansas, and Missouri. 



* See page 8. 



Southern Pine." Mohr U. S. Forestry Circular No. 12. 

 Timber Pines of Southern States." U. S. Forestry Bui. No. 13. (Mohr.) 



