FOREST TREES AND FOREST REGIONS OF THE U. S. 



43 



SOUTHERN FOREST TREES 



Pinelands: 



Longleaf, shortleaf, loblolly, and 

 slash pines. 



Southern red, turkey, black, post, 

 laurel, and willow oaks. 



Red gum (sweetgum) . 



Winged, American, and cedar elms. 



Black, red, sand, and pignut hick- 

 ories. 



Eastern and southern red cedars. 



Pond and sand pines. 

 Hardwood bottoms and swamps: 



Red or sweet, tupelo, and swamp 

 black gums. 



Water, laurel, live, overcup, Texas 

 red, and swamp chestnut oaks. 



Southern cypress. 



Hardwood bottoms and swamps — Con. 

 Pecan, water, swamp pignut, and 



hammock hickories. 

 Beech. 

 River birch. 

 Water, green, pumpkin, and white 



ashes. 

 Red and silver maples. 

 Cottonwood and willows. 

 Sycamore. 



Sugarberry (southern hackberry). 

 Honeylocust. 

 Holly. 



Red, white, and sweet bays. 

 Evergreen magnolia. 

 Pond and spruce pines. 

 Southern white cedar. 



TROPICAL FOREST REGION 



Two fringes of forest, made up chiefly of tropical tree species, occur 

 along the coast in extreme southern Florida and in extreme southern 

 coastal Texas. The total area involved is probably not over 400,000 

 acres and the stand of trees varies greatly in density. Many kinds 

 of hardwood trees, most of which are small and bear evergreen leaves 

 and pulpy berries or stone fruit, make up the stand. A few are of 

 some commercial or economic importance, like mastic or " wild olive ", 

 and the mangrove, whose impenetrable thickets hold the muddy banks, 

 causing land to be built up, and form a protection against tropical 

 hurricanes. The trees represent the northernmost extension of their 

 natural ranges, which mostly include some or all of the West Indies, 

 Bahamas, Central America, and South America. They have probably 

 sprung from seeds washed ashore during storms or distributed by 

 birds. 



The principal trees in this forest region are: 



TROPICAL FOREST TREES 



Mangrove. 



Royal and thatch palms. 



Florida yew. 



Wild fig. 



Pigeon plum. 



Blolly. 



Wild tamarind. 



Gumbo limbo. 



Poisonwood. 



Inkwood. 



Buttonwood. 



Mastic ("wild olive")- 



Jamaica dogwood. 



ROCKY MOUNTAIN FOREST REGION 



Spread over a vast extent of mountains and high plateaus in the 

 central-western part of the United States, the Eocky Mountain 

 forest region reaches from Canada to Mexico, a length of about 

 1,300 miles, and from the Great Plains west to the great basin of 

 Nevada and eastern parts of Oregon and Washington, a breadth of 

 800 miles. It embraces over 40 isolated forest areas or patches, some 

 of large size like that in western Montana, northern Idaho, and eastern 

 Washington, and another in Colorado, New Mexico, and Arizona. 



