JEFFREY PINE 



Pinus ponderosa var. jeffreyi VASEY. 



BARK Redder than in Ponderosa, running almost into 

 black and broken into very much smaller plates 

 and ridges. 



LEAVES 5 to 9% inches long, hanging on the trea 

 from 5 to 8 years; appearance similar to Pon- 

 derosa. 



CONE Similar to Ponderosa, except that they are much 

 larger (5 to 11 inches long), and somewhat 

 rounder and denser. 



This is but a variety of the Pinus pon- 

 derosa and hence has many characteris- 

 tics of the latter tree. There is such a 

 gradual gradation from the pure Pon- 

 derosa type to the pure Jeffrey variety 

 that often it is difficult to give a rigid 

 classification to many intermediate 

 trees. The best field marks are the fine- 

 ly cut wine color bark streaked with 

 black (hence sometimes called Black 

 Pine) , and the larger cones. Generally 

 the pure stands of Jeffreys are found 

 at higher elevations than the Ponder- 



John Jeffrey a Scotch gardener who collected both 

 plants and seeds in Oregon and northern California. 

 (1852-53) 



35 



