306 NORTH AMERICAN FAUNA. [No. 7. 



Paliranagat Mountains. — Common, descending to about J, 580 meters 

 (5,200 feet) on the east slope. 



Paliroc Mountains. — Common in the sage brash near Pahroc Spring; 

 just coming into flower May 20. 



Highland Range. — Found on the west slope. 



Charleston Mountains. — Found on the west slope from 1,550 to 1,830 

 meters (5,100 to 6,000 feet) in the neighborhood of Mountain Spring. 



J uniper Mountains (between Panaca, Kevada,and Shoal Creelc, Utah). — 

 Abundant in places on south exposures, where it was hardly in bud May 

 17, while a week earlier (May 10) it was flowering in the height of per- 

 fection on the Beaverdam Mountains. Kunzia, tridentata was common 

 with Coivania in the Juniper Mountains and was just coming into flower 

 May 1 7, while it had past flowering in the Beaverdam Mountains May 10. 



UTAH. 



Beaverdam Mountains. — Abundant, ranging from 1,100 to 1,430 meters 

 (3,600 to 4,700 feet) in altitude on the northeast slope ; flowering pro- 

 fusely May 10-11. 



Santa Clara Valley. — In ascending the Santa Clara Valley, Coivania 

 begins in the sage brush about 13 kilometers (8 miles) northwest of St. 

 George (altitude 1,280 meters, or 4,200 feet), and extends thence northerly 

 to and beyond the Upper Santa Clara Crossing, reaching an altitude of 

 about 1,645 meters (5,400 feet) where it stops and Kunzia begins. In 

 other localities it is mixed with Kunzia, though the latter generally 

 ranges higher. 



Fallugia paradoxa. 



This species occurs on many of the desert ranges of the Great Basin, 

 often associated with Coivania mexicana and Kunzia tridentata, from 

 which it has not always been discriminated by travelers. Fallugia aver- 

 ages hardly more than a meter in height, being a much smaller bush 

 than Coivania. Its pure white flowers are larger than the cream- colored 

 blossoms of Coivania, and are borne on longer i>eduhcles. The flowers 

 of Kunzia are yellow. Fallugia was found in the following localities : 



NEVADA. 



Charleston Mountains. — Common on the west slope above 1,430 meters 

 (4,700 feet), in the neighborhood of Mountain Spring, ranging up to at 

 least 1,700 meters (5,600 feet). On the east slope it was not seen above 

 1,525 meters (5,000 feet). 



Pahranagat Mountains. — Common on the east slope a little above 

 1,580 meters (5,200 feet), and on the west slope reaches the summit. 



Hungry Kill Summit. — Begins just north of summit and passes over 

 the divide (1,770 meters, or 5,800 feet) and down on the south side to- 

 ward the North Arm of Indian Spring Valley to 1,525 meters (5,000 

 feet). . 



