May, 1893.] CACTUSES OF THE DEATH VALLEY EXPEDITION. 351 



of the other flowers seen were red. It is possible that two species are 

 here confounded. 



Bchinocactus johnsoni. 



Tbis species is about one-third the size of E. wislizeni, which it 

 greatly resembles. Its flowers are deep red. It was found on the west 

 slope of the Beaverdam Mountains in southwestern Utah, at an alti- 

 tude of 1,030 meters (3,400 feet), and ranged thence up over the divide 

 to 1,525 meters (5,000 feet). A small form referred to the same species 

 was common on steep gravel slopes in Vegas Wash, Nevada, where it 

 was in full flower May 3. It was eaten by the Paiute Indians, who 

 peel it as we would a cucumber. 

 Echinocactus polycephalus. 



This striking species, commonly called l nigger-head' in the desert 

 region, and resembling loose clusters of cocoanuts, is common on many 

 of the desert valleys in the southern part of the Great Basin. It was 

 observed in the following localities : 



CALIFORNIA. 



Inyo. Mountains. — Found along the west side of the range in Owens 

 Valley. 



Panamint Mountains. — Found in the upper part of the Larrea on the 

 wst side of the divide between Perognathus Flat and Wild Bose 

 Spring. 



NEVADA. 



Indian Spring Valley. — Common on the rocky walls of the canon 

 leading from the extreme west end of Indian Spring Valley down 

 toward Ash Meadows. 



Desert Mountains. — Grows sparingly along the west base of the Des- 

 ert Mountains, near Quartz Spring. 



North Kingston Range. — Common in places. 



Ash Meadows. — Common on the low rocky mountains on the east side 

 of Ash Meadows. 



Pahranagat Valley. — A few clusters of heads were seen in rocky places 

 on the east side of the valley. 



Muddy Mountains. — A few seen in the Muddy Mountains above Bit- 

 ter Springs. 



Valley of the Virgin and Loiver Muddy. — Found in a few places among 

 rocks, particularly on the gravel mesa near the boundary line between 

 Arizona and Nevada. Common on the high mesa between the Virgin 

 and Muddy. 



[The species was not seen on the east slope of the Beaverdam Moun- 

 tains, in Utah ] 



Echinocactus polyancistrus. 



This species, which resembles a pineapple in general size and appear- 

 ance, was found in flower on the east slope of the White Moimt.vins, 



