ECONOMIC WOODS OF THE UNITED STATES 



129 



TABLE V 



IMPORTANT FAMILIES AND GENERA OF DICOTYLEDONS IN THE 

 UNITED STATES 



Aceracece 



Acer (maple) 

 Aquifoliacece 



Ilex (holly) 

 BetulacecB 



Alnus (alder) 



Betula (birch) 

 Bignoniacece 



Catalpa (catalpa) 

 Cornacece 



Cornus (dogwood) 



Nyssa (tupelo) 

 Ebenacece 



Diospyros (persimmon; 

 FagacecB 



Castanea (chestnut) 



Castanopsis (chinquapin) 



Fagus (beech) 



Quercus (oak) 

 Hamamelidacece 



Liquidamabar (red gum) 

 Hippocastanacece 



^Esculus (buckeye) 

 Juglandaceoe 



Hicoria (hickory) 



Juglans (walnut) 

 Lauracece 



Sassafras (sassafras) 



Leguminosas 



Gleditsia (honey locust) 



Gymnocladus (Ky. coffee-tree) 



Robinia (black locust) 



Prosopis (mesquite) 

 Magnoliacece 



Liriodendron (tulip-tree) 



Magnolia (magnolia; cucumber) 

 Meliacece 



Swietenia (mahogany) 

 Moracece 



Morus (mulberry) 



Toxylon (Osage orange) 

 OleaceoB 



Fraxinus (ash) 

 Platanacece 



Platanus (sycamore) 

 Rosacece 



Prunus (black cherry) 

 Salicacecs 



Populus (poplar; cottonwood) 



Salix (willow) 

 Tiliacece 



Tilia (basswood) 

 Ulmacece 



Celtis (hackberry) 



Ulmus (elm) 



TABLE VI 



NUMERICAL CONSPECTUS OF THE TREES OF THE UNITED STATES 



