May, 1893.] TREES OF THE DEATH VALLEY EXPEDITION. 66.) 



Pinus ponderosa scopulorum. 



The yellow x>ine grows in a broad zone on Charleston Peak, Nevada, 

 and on Pine Valley Mountain, Utah, in both of which localities it is 

 cut for lumber. It is said to be common in the higher parts of the 

 Virgin and Highland ranges. A few scattering trees were found on 

 the higher hills of the Juniper Mountains near Sheep Spring (between 

 Panaca, Nevada, and Shoal Creek, Utah), at an altitude of about 2,010 

 meters (6,700 feet). 



Pinus Jeffrey i. 



This large pine is common in the High Sierra in California, ranging 

 upward on the east slope from about 2,750 meters (9,000 feet) to 2,900 

 meters (9,500 feet). 



Pinus murrayana. 



On the High Sierra in California Pinus murrayana reaches timber- 

 line with P. balfouriana, and ranges down on the east side to an alti- 

 tude of about 2,900 meters (9,500 feet) or lower, growing to be a large 

 tree. 



Pinus balfouriana. 



In the High Sierra in California, Pinus balfouriana and P. mur- 

 rayana reach timber-line, whence they descend on the east slope to an 

 altitude of about 2,900 meters (9,500 feet) or a little lower, where they 

 grow to be large trees 15 to 20 meters (50 to 65 feet) in height and a 

 meter or more (3 or 4 feet) in diameter. 



Pinus aristata. 



P. aristata was found on the summit of the Pauamint Mountains, in 

 California, by Mr. Bailey and Dr. Fisher, and on Charleston Peak, 

 Nevada, by Mr. Coville and Mr. Palmer. 



A pine of this type was found by Mr. Nelson on the higher parts of 

 the White and Inyo mountains, California, but whether P. aristata or 

 P. balfouriana is not certain. 



Pinus sabiniana. 



This remarkable tree, with very open foliage and huge cones, is char- 

 acteristic of the west slope of the Sierra and the Coast Ranges of Cali- 

 fornia, and does not occur anywhere .within the Great Basin. It was 

 common along the route traversed from a mile west of the summit of 

 Walker Pass to Kernville, and thence southward to Walker Basin, and 

 was found also on the Sierra Liebre, growing with and below Pin us 

 monophylla, and descending on the north slope nearly to Antelope 

 Valley in the neighborhood of Liebre ranch. 



Pinus monticola. 



Pinus monticola is one of the timber-line trees. On the rocky west 

 slope of the Sierra Nevada, above Mineral King, Mr. Bailey found it 

 at an altitude of 2,930 meters (9,600 feet), and thence upward to 3,120 

 meters (10,400 feet). In that locality but one pine {Pinus halfouriana) 

 extended higher. 



