L 82 THE PRINCIPAL SPECIES OF WOOD. 



Incense Cedar, White Cedar. Libocedrus decurrens Torr. 



Nomenclature. (Sudworth.) 



Post Cedar, California Post California White Cedar 



Cedar (local). (local). 



Bastard Cedar, Red Cedar, Juniper (Nevada). 

 Locality. 



California and Oregon. 



Features of Tree. 



Ninety to one hundred and twenty-five feet in height, occa- 

 sionally higher, three to six feet in diameter. 



Color, Appearance, or Grain of Wood. 



Heartwood brownish, sapwood lighter. Close-grained, compact 

 structure. Heartwood often pitted. Fragrant. 



Structural Qualities of Wood. 

 Light, brittle, soft, durable. 



Representative Uses of Wood. 

 Flumes, shingles, interior finish. 



Weight of Seasoned Wood in Pounds per Cubic Foot. 



25- 

 Modulus of Elasticity. 



1,200,000. 

 Modulus of Rupture. 



960,000. 



Remarks. 



Subject to attack by fungus, causing the large oval pits in the 

 heartwood. Disease ceases upon the felling of trees. The 

 wood between the decayed spaces is apparently sound, even in 

 living trees, and when seasoned is durable so that it can be used 

 for posts or for purposes where appearance is unimportant. 

 Some dealers charge as much for defective as for sound wood. 

 This disease is similar to the ones associated with cypress and 

 red cedar (pages 175 and 184). About half of the standing 

 supply is effected. The disease is called "pin rot." Also see 

 von Schrenk, Contribution No. 14; Shaw, School Botany, 

 St. Louis. 



