May, 1893.] SHRUBS OF THE DEATH VALLEY EXPEDITION. 301 



UTAH. 



Santa Clara Valley. — Occurs sparingly on sandy soil in the lower 

 valley. 



Acacia greggii. 



This Lower Sonoran shrub, which grows to be 2J to 3 meters (8 to 10 

 feet) in height, perhaps higher, was not found in California, or in Nevada 

 west of the Charleston Mountains. It is tolerably common along the 

 upper and lower Cottonwood Springs at the east foot of the Charleston 

 Mountains, and thence easterly was found at Bitter Springs in the 

 Muddy Mountains, and in the valley of the Virgin and Lower Muddy, 

 and thence northerly to the mouth of Beaverdam Creek, in northwestern 

 Arizona, where it was abundant on the flat at the junction of Beaverdam 

 Creek with the Virgin. 



Primus fasciculata. 



This species is so characteristic of the desert ranges in the southern 

 part of the Great Basin that it might properly be called the 'Desert 

 Range Almond.' It is known to the Mormons as the wild almond and 

 grows in dense clumps of bushes about as high as a man's head or 

 lower, with irregular and very tough branches. It was noted in the 

 following localities: 



CALIFORNIA. 



White Mountains. — Pound in places along the summit and in canons. 

 Walker Pass and Kern Valley. — Occurs sparingly, descending as low 

 as 820 meters (2,700 feet) on northerly exposures in Kern Valley. 



NEVADA. 



Mount Magrudcr. — Not common, but found in the upper part of Tule 

 Canon and in a few other places. 



Gold Mountain. — Tolerably common on the north slope in scattered 

 clumps a little below 2,135 meters (7,000 feet). 



Highland Range. — Occurs sparingly, mixed with. Artemisia tridentata. 



Pahroc Mountains. — Tolerably common, mixed with sagebrush and 

 Kunzia. 



Juniper Mountains. — Bather common, mixed with sagebrush and juni- 

 per, beginning at an altitude of about 1,830 meters (6,000 feet) on the 

 Meadow Valley side and ranging up to the divide. 



Charleston Mountains. — Common, reaching its lower limit on the west 

 slope (Pahrump Valley side) at about 1,435 meters (4,700 feet). 



UTAH. 



Beaverdam Mountains. — Common, ranging down on the west slope 

 to about 1,160 meters (3,800 feet) and on the east slope to about 1,100 

 meters (3,600 feet). 



Santa Clara Valley. — Occurs in scattering patches on the rocky hill- 

 sides in the Upper Santa Clara Valley, beginning about 13 kilometers 

 (8 miles) northwest of St. George at an altitude of 1,280 meters (4,200 

 feet) and ranging thence northerly to the Upper Santa Clara Crossing. 



