334 NORTH AMERICAN FAUNA. [No. 7. 



grassy hilltops, particularly along the main divide. It is common also 

 at Liebre ranch, on the south side of Antelope Valley, which it reaches 

 from the adjoining Sierra Liebre. 



Quercus wislizeni. 



This live oak is common along the western foothills of the Sierra 

 Nevada, in California, and thence southward. 



Quercus kelloggii. 



Common on the west slope of the Sierra Nevada, where Mr. Bailey 

 found it occupying a zone between the altitudes of 1;470 and 2,160 meters 

 (4,900—7,200 feet) along the East Fork of Kaweah Eiver. 



Quercus dumosa. 



Quercus dumosa is the scrub oak of the Sierra Liebre a«nd Coast Eanges 

 generally. It is common on the side hills about Antelope Valley, at 

 the extreme west end of the Mohave desert, and thence down through 

 the Canada de las Uvas. It is common also in Cajon Pass. 



Castanopsis chrysophylla. 



The California chinquapin grows abundantly on the east slope of the 

 High Sierra, in a narrow zone between 2,750 and 2,895 meters (9,000 and 

 9,500 feet) altitude, opposite Lone Pine. 



Salix longifolia. 



This small and slender willow forms open thickets about water 

 courses and warm springs in some of the Lower Sonoran deserts. It 

 was found in the following localities : 



CALIFORNIA. 



Death Valley. — Common along Furnace Creek, on the east side of 

 Death Valley, mixed with Pluckea sericea. 



Amargosa Cailon. — Found sparingly along the creek in the upper 

 part of the canon. 



NEVADA. 



Great Bend of the Colorado. — A slender willow forms extensive 

 thickets along the river on both sides of the Great Bend. 

 Ash Meadotcs. — Abundant about the hpt springs. 



ARIZONA. 



Beaverdam Creek. — Small willows are abundant on the flats bordering 

 Beaverdam Creek, near its junction with the Virgin, in northwestern 

 Arizona. 



UTAH. 



Santa Clara Valley. — Common along the Virgin, near the mouth of 

 the Santa Clara. 

 Salix laevigata. 



A single tree of this species marks the position of Lone Willow 

 Spring, at the east foot of the Slate Bange, near the extreme south end 

 of Panamint Valley, California. 



