WEST VIRGINIA GEOLOGICAL SURVEY. 



381 



Distribution in West Virginia. — Found near Morgantown. Mon- 

 ongalia county, and in Hampshire, near Romney. 

 Reported by Millspaugh as frequent. 



Wood. — Similar to that of Shellbark Hickory. 



Uses. — Same as Shellbark and Pignut. 



HICORIA GLABRA, Britt. Pignut. 



Geographic Distribution. 



Dry ridges and hillsides, southern Maine to southern Ontario, 

 and southward to the shores of the Indian river and Peace 

 creek, Florida, southern Alabama and Mississippi, and through 

 southern Michigan, to southeastern Nebraska, Missouri, eastern 

 Kansas, Arkansas, the Indian Territory, and Texas; most com- 

 mon in Missouri and Arkansas; of its largest size in the basin 

 of the lower Ohio river; ranging farther south in Florida than 

 • other hickories, and, with the exception of the Pecan, farther 

 to the southw^est in Texas. 



Distribution in West Virginia. — A common tree. Grows in every 



county in the State, but not frequent at high altitudes. 

 Wood. — Similar to that of other hickories. 

 Uses. — Same as in the preceding species of hickory. 



POPULUS TREMULOIDES, Michx. Aspen. Quaking Asp. 



Geographic Distribution. 



Southern Labrador to the southern shores of Hudson's Bay 

 and northwesterly to the mouth of Mackenzie river and the val- 

 ley of the Yukon river, Alaska, through the northern states to 

 mountains of Pennsylvania, northeastern Missouri and north- 

 western Nebraska, and through all the mountain regions of the 

 west, often ascending to elevations of 10,000 ft. above the level 

 of the sea, to the sierras of central California, northern Arizona 

 and New Mexico, the high mountain ranges of Chihuahua and 

 to Mt. San Pedro Martir in Lower California; in the east com- 

 mon and generally distributed usually in moist sandy soil and 

 gravelly hillsides; bordering the midcontinental prairie region 

 with a wide belt, and growing with its greatest vigor and to its 

 largest size on the western margin of the Atlantic forest north 

 of the 49th degree; farther to the northwest forming with the 

 Birch and the Spruce the forests of high ridges; in the west 

 and southwest on the high slopes of mountains and along the 

 banks of streams; most valuable in the power of its seeds to 

 germinate quickly in soil made fertile by fire and of its seed- 

 lings to grow quickly in exposed situations; now widely spread 

 over vast areas on the slopes of the Rocky Mountains swept by 

 fire of their former covering of coniferous trees. 



