May, 1893.] TREES OF THE DEATH VALLEY EXPEDITION. d4l 



It was observed in tlie following localities: 



CALIFORNIA. 



West slope of the Sierra. — Common on the sidehills about Kernville, 

 where it descends as low as 700 meters (2,600 feet) on the north slopes, 

 and ranges southward along* the road from Kernville to Havilah. It 

 reaches the summit of Walker Pass (1,550 meters, or 5,100 feet). 



Sierra Liebre. — Common on the north slope opposite the western 

 part of Antelope Valley. 



Tehachapi Mountains. — Common, ranging down into the tree yuccas 

 on the side of the open canon leading from Tehachapi Valley down to 

 Mohave (altitude, about 1,090 meters, or 3,000 feet). 



Mohave Desert and Sari Bernardino Mountains. — Along the north foot 

 of San Bernardino Mountains, at the extreme southern edge of the 

 Mohave Desert, is a well-defined belt of juniper about 8 miles in width, 

 ranging from the summit of Cajon Pass at an altitude of 1,215 meters 

 (4,000 feet) down through the upper part of the tree yucca zone to an 

 altitude of 1,060 meters (3,500). 



Juniperus californica utahensis. 



Juniperus californieus utahensis, either alone or in company with the 

 nut pine (Pinus monophylla), clothes the summits of most of the desert 

 ranges, where it reaches as high as the upper limit of the Transition 

 zone. It is the only juniper inhabiting the southern part of the Great 

 Basin, and does not grow below the Upper Sonoran zone; conse- 

 quently it is absent from the lower ranges and also from the exces- 

 sively barren Funeral and Amargosa ranges between Death Valley 

 and the Amargosa Desert. The following notes on its distribution 

 were recorded: 



CALIFORNIA. 



White and Inyo mountains. — Abundant along the summit of the 

 range (except on the higher peaks of the White Mountains, which are 

 too high for it and are clothed with pines and spruces). On the east 

 slope of the White Mountains, opposite Deep Spring Valley, junipers 

 descend with nut pines to 2,040 meters (6,700 feet). 



Panamint Mountains. — Common throughout the higher parts of the 

 range. In the basin above Wild Bose Spring on the northwest slope 

 of Telescope Peak, junipers begin at 1,900 meters (about 6,300 feet), 

 and run up to 2,550 meters (8,400 feet) or higher. 



NEVADA. 



Mount Magruder. — The juniper is scarce on Mount Magruder, where 

 its place is taken by the nut pine (Pinus monophylla). 



Gold Mountain — Common in sheltered caiions, and in places on the 

 summit. 



Hungry Hill Summit. — Common on the divide and neighboring hills, 

 reaching down on the south side to about 1,525 meters (5,000 feet). 



