May, 1893.] SHRUBS OF THE DEATH VALLEY EXPEDITION. 331 



of about 2,010 meters (0,600 feet). It grows on gravel soil, while 8. 

 vermiculatus, as well known, grows on alkaline clayey soils. 



Sarcobatus vermiculatus. 



This characteristic desert shrub grows on clayey alkaline soils through- 

 out the Upper Sonoran Zone, descending in places into the Lower 

 Sonorau. It was observed in the following localities: 



CALIFORNIA. 



Owens Valley. — Common on the alkaline flats in the narrow valley 

 between Owens Lake aud Haway Meadows, and in places on the west 

 side of the valley between Owens Lake and Lone Pine. 



NKVADA. 



Fish Lake Valley. — The most conspicuous plant on the mud flat in the 

 bottom of the valley, whence it extends easterly on suitable soils to an 

 altitude of 2,010 meters (6,700 feet) in the wash leading up to Pigeon 

 Spring on the northwest slope of Mount Ma-grader. 



Sarcobatus Flat. — Abundant on the clayey soil, growing on clay dunes 

 as high as a man's head or higher. These Sarcobatus dunes were not 

 found elsewhere and were such a peculiar feature of this desert that 

 the name Sarcobatus Flat was given it on this account. 



Oasis Valley. — Common throughout the bottom of the valley along 

 with Atriplex confertifolia and A. parryi. 



Fahranagat Valley. — Abounds throughout the clayey mud flats of 

 the valley up to an altitude of about 1,280 meters (4,200 feet), aud is 

 distinguishable at a distance from the other shrubs by its peculiar 

 green color. 



Meadow Greek Valley. — Common along the bottom. 



Desert Valley. — Common in large patches on the flat bordering the 

 dry lake. 



UTAH. 



Shoal Greek. — Occurs in places on the mud flats bordering the creek. 



Eriogonum polifolium. 



This woody Eriogjnum, the lower part of which is a true bush, is 

 common on the upper levels of many of the deserts and along the bases 

 of many of the desert ranges, where it was recorded from the following 

 localities: 



CALIFORNIA. 



Mohave Desert. — Common on the higher levels. 



Antelope Valley. — Common at the extreme west end of Antelope Val- 

 ley in a wash leading south toward Peru Creek. 



Tehachapi Basin. — Occurs, coming up from the Mohave Desert. 



Walker Pass. — In Walker Pass it was common up to 1,130 meters 

 (4,700 feet) on the east side; on the west or Kern River side it was 

 found as low as 820 meters (2,700 feet) on northerly exposures. 



