ECONOMIC WOODS OF THE UNITED STATES 



143 



TABLE XII 



Families with Indigenous Representatives Exclusively 

 Diffuse-porous 



Aceraceae 



Aquifoliacese 



Betulaceae 



Boraginaceae 



Burseraceae 



Canellaceae 



Capparidacea? 



Caprifoliaeeae 



Caricaceee (?) 



Celastraoeae 



Combretaceae 



Cornaceae 



Cyrillaceae 



Ericaceae 



Euphorbiaceae 



Hamamelidaceae 



Hippocastanaceae 



Koeberliniacea? 



Magnoliaceae 



Myricaceae 



Myrsinaceae 



Myrtaceae 



Nyctaginaceae 



Platanaceae 



Polygonaceae 



Rhamnacea? 



Rhizophoracese 



Rosacea? 



Salioaceae 



Styraceae 



Symplocaoeae 



Theaceae 



Theophrastaceae 



Tiliacese 



Zygophyllacese 



TABLE XIII 



Indigenous Ring-porous Woods 



Acacia 



Ailanthus (Nat.) 



Asimina 



Avieennia 



Broussonetia (Xat.) 



Bumelia 



Castanea 



Castanopsis 



Catalpa 



Celtis 



Cercis 



Chilopsis 



Chionanthus 



Cotinus 



Dalea 



Diospyros 



Ehretia 



Eysenhardtia 



Fraxinus 



Fremontodendron 



Gleditsia 



Gvmnocladus 



Hicoria (Carya) 



Leitneria 



Melia (Nat.) 



Morus 



Paulownia (Nat.) 



Parkinsonia 



Pinckneya 



Prosopis 



Ptelea 



Quercus 



Rhamnus 



Rhus 



Robinia 



Rapindus 



Sassafras 



Sophora 



Toxylon 



Ulmus 



