54 BULLETIN 56, UNITED STATES NATIONAL MUSEUM. 



Mountains it begins, below, at 1,829 meters (6,000 feet) along with 

 the maple (Acer saccharum grandidentatum) . 



The whiteleaf oak was found only on the Animas, San Luis, 

 Guadalupe, San Jose, and Huachuca mountains. 



QUERCUS WISLIZENI A. de Candolle. 

 HIGHLAND LIVE OAK, 



A small 'tree, which we found only about the summits of the 

 Laguna Mountains of the Coast Range in California. It is readily 

 distinguished from Quercus chrysolepis by its very different fruit. 



QUERCUS TEXANA Buckley. 

 TEXAS BED OAK. 



This is the red oak, or Spanish oak, of Texas: found sparingly 

 af> Fort Clark, Kinney County, Texas, and abundantly on the hills to 

 the northeast of that place. Specimens were identified by Mr. 

 George B. Sudworth, dendrologist of the Forest Service. 



QUERCUS CALIFORNICA (Torrey) Cooper. 

 CAIIFOKNIA BLACK OAK, 



A large, handsome oak, growing with the Sabine and Coulter 

 pines, in the higher portions of the Laguna Mountains in the Coast 

 Range of California. The acorns, which are large, are an important 

 article of diet with the Indians of the region, in whose huts we saw 

 large sacks of them. We were also informed that during hard 

 times, when the ground was deeply covered with snow and the 

 Indians threatened with famine, they were sometimes obliged to 

 chop down the pines in order to obtain the acorns, which wood- 

 peckers {Melanerpes formicivorus hairdi) habitually store, in large 

 quantities, in holes pecked in the pine bark. 



ULMUS CRASSIFOLIA Nuttall. 

 CEDAR ELK, 



A tall tree, 15 to 30 meters (50 to 100 feet), along the streams of 

 south central Texas. It was not seen west of Devils River. 



CELTIS OCCIDENTALIS Linnjeus. 

 HAGKBEBRY, 



The hackberry is a common tree in southwestern New Mexico and 

 southeastern Arizona. It was first met with, going west at Monu- 

 ment No. 40, about 100 miles west of the Rio Grande, in the Apache 

 Mountains. It was found in the canyons of the Dog Mountains, 



