EXOGENOUS SERIES BRO A DLE/tF WOODS. 65 



Chinquapin. Castanea pumila (Linn.] Mill. 



Nomenclature. (Sudworth.) 



Chinquapin (Del., N. J., Pa., Va., W. Va., N. C, S. C., Ga., 

 Ala., Fla., Miss., La., Tex., Ark., Ohio, Ky., Mo., Mich.). 



Locality. 



Pennsylvania to Florida, Mississippi, Louisiana, Texas, Arkan- 

 sas, Ohio, Kentucky, Missouri, Michigan. 



Features of Tree. 



A small tree, sometimes forty-five feet in height, one to two feet 

 or over in diameter. Sometimes reduced to low shrub. 

 Small prickly burr with single small chestnut-colored nut. 



Color, Appearance, or Grain of Wood. 



Heartwood dark brown, sapwood hardly distinguishable. 

 Coarse-grained, annual layers marked by rows of open ducts. 



Structural Qualities of Wood. 



Rather heavy, hard, strong. Durable in exposed positions. 

 Liable to check in drying. 



Representative Uses of Wood. 

 Posts, rails, railway ties, etc. 



Weight of Seasoned Wood in Pounds per Cubic Foot 



36. 

 Modulus of Elasticity. 



1,620,000. 

 Modulus of Rupture. 



14,000. 

 Remarks. 



The Chinquapin (Castanopsis chrysophylla) , is a tree with char- 

 acteristics between oak and chestnut. Its wood is nearly 

 similar to that of the Chinquapin Castanea pumila, and is 

 sometimes used for implements. It is native in Oregon and 

 California. 



