318 NOUTII AMERICAN FAUNA. [No. 7. 



Emigrant Valley. — Found on the east side of the valley, ranging 

 thence over the lower parts of the Desert and Tiinpahute mountains. 



Timpaliute Valley. — Common on the higher levels, and ranges up on 

 the Pahranagat Mountain slope to the summit of the divide at 1,830 

 meters (6,000 feet). On the west side of the valley it begins at 1,460 

 meters (4,800 feet) and ranges up on the Timpahute Mountains. 



Pahranagat Valley. — Common in places, generally on gravel soil, 

 ascending on the west side of the valley (east slope of Pahranagat 

 Mountains) to 1,645 meters (5,400 feet). 



Highland Range. — Found sparingly on the west slope. 



Charleston Mountains. — On the west slope of the Charleston Mountains 

 Tetradymia spinosa\r&& found in a zone between 1,340 and 1,765 meters 

 (4,400-5,800 feet). 



UTAH. 



Beaver dam Mountains. — Occurs sparingly. 



Tetradymia comosa (or stenolepis). 



This beautiful shrub, which may be recognized at a distance by its 

 whiteness, is common in part of the region traversed. It was found 

 in the following localities: 



CALIFORNIA. 



Owens Valley. — Common in the higher parts of the valley, ranging 

 up on the west side opposite Lone Pine to 1,520 or 1,550 meters (5,000 or 

 5,100 feet.) 



Walker Pass. — Occurs on the east side of the pass where it was seen 

 at 1,250 meters (4,100 feet). 



Kern Valley. — Found on northerly exposures as low as 820 meters 

 (2,700 feet,). 



Mohave Desert. — Found in places, ranging westward nearly to Wil- 

 low Spring in Antelope Valley, and extending northward through the 

 open canon leading from Mohave to Tehachapi. 



Arctostaphylos glauca. 



In Cajon Pass this manzanita begins at about 670 meters (2,200 feet) 

 and ranges up to the summit of the pass. 



Arctostaphylos pungens. 



This species of manzanita was found on the Charleston Mountains, 

 Nevada, near'Mountain Spring, and on the east slope of the Beaverdam 

 Mountains in Utah, from 1,100 to 1,300 meters (3,600 to 4,300 feet) alti- 

 tude. It was not found on any of the other desert ranges. 



Note. — Other species of manzanita are common on both slopes of 

 the Sierra Nevada in California, and on the coast ranges. 



Menodora spinescens. 



The beautiful little bush provisionally referred to this species, but 

 which may have been Menodora seoparia, grows in dense tufts over 

 many of the higher desert levels, where it is easily recognized by the 



