292 NORTH AMERICAN FAUNA. [No. 7. 



Valley of the Virgin and Lower Muddy. — Common in the dry parts of 

 the valley. 



UTAH. 



Santa Clara Valley. — Abundant in the lower part of the valley, disap- 

 pearing- at an altitude of 1,220 to 1,275 meters (4,000-4,200 feet). 



Beaver dam Mountains. — On the west slope of the Beaverdam Moun- 

 tains Krameria ranges up from the Virgin Valley to 1,150 meters (3,800 

 feet). 



Krameria canescens. 



This species was common in dry parts of the valleys of the Muddy 

 and Virgin, IST-evada. It is larger than Krameria parvifolia , from which 

 its flowers differ in color and fragrance. 



Malvastrum rotundifolium. 



This exquisite species, whose large cup-shaped orange-pink flowers 

 seemed disproportionately heavy for its slender stems, is common in 

 the hottest deserts of eastern California and southwestern Nevada. It 

 was found in the Mohave Desert, and in Panamint and Death valleys 

 and the Amargosa Desert, but not in the deserts of eastern Nevada. 

 It was common on the west side of the canon leading from the Amargosa 

 to the west end of Indian Spring Valley, but was not observed in the 

 latter valley. It blossoms early and was in fruit about the end of May. 



Sphaeralcea monroana. 



This common and widely distributed species (if only one species is 

 covered by the notes), grows in enormous patches in some of the deserts 

 of the Great Basin, where it becomes a truly social plant, the individ- 

 uals standing so near together that their large salmon-colored flowers 

 give color to areas miles in extent. Among the many places where it 

 Avas seen are the following: 



CALIFORNIA. 



Mohave Desert. — Common in places. 

 Leach Point Valley. — Common. 



Oivens Valley. — Common, ranging up to 1,980 meters (6,500 feet) on 

 the west slope of the White Mountains opposite Big Pine. 



NEVADA. 



Fish Lake Valley. — Common, ranging up on the northwest slope of 

 Mount Magruder to 1,980 or 2,040 meters (6,500 or 6,700 feet). 



Grapevine Canon. — Common. 



Sarcobatus Flat. — Common in places. 



Amargosa Desert. — Occurs. 



North Arm of Lndian Spring Valley. — Abundant everywhere. 



Fmigrant Valley. — Abundant, and reaches up on the Desert Bange 

 nearly to the divide near Summit or Mud Spring. 



Timpahute Valley. — One of the principal plants. 



