70 ULMUS PUBESCENS Slippery Elm. 



(Umus fulva.) (Bed Elm.) 



71. ULMUS AMEBIC AN A White Elm. 



(Soft Elm; Swamp Elm.) 



72. ULMUS BACEMOSA Bock Elm 



(Cork Elm; White Elm.) 



TREES INTRODUCED FROM UNITED STATES. 



ABIES CONCOLOR White Fir. 



(Balsam Fir.) 



ABIES NOBILIS Noble Fir. 



(Bed Fir.) 

 AESCULUS GLABRA Ohio Buckeye. 



(Buckeye.) 



CATALPA CATALPA Catalpa. 



(Catalpa bignonioides.) 



CATALPA SPECIOSA Hardy Catalpa. 



CHAMAECYPABIS THY01DES ...White Cedar. 



(Chamaecyparis sphaeroidea.) (Swamp Cedar; Juniper.) 



COTINUS COTINOIDES American Smoke-Tree. 



(Rhus cotinoides.) 



GLEDITSIA TRIACANTHOS Honey Locust. 



MAGNOLIA ACUMINATA Cucumber-Tree. 



MORUS RUBRA Red Mulberry. 



PICEA ENGELMANNI Engelmann Spruce. 



PICEA PARRYANA Blue Spruce. 



(Picea pungens.) (Colorado Blue Spruce.) 



PINUS PONDEROSA Bull Pine. 



(Yellow Pine.) 

 PSEUDOTSUGA TAXIFOLIA Douglas Spruce. 



(Pseudotsuga douglasii.) (Red Fir; Douglas Fir.) 



ROBINIA PSEUD ACACIA Black Locust. 



(Locust.) 



TREES INTRODUCED FROM OTHER COUNTRIES. 



1 ABIES NORDMANNIANA Normann's Fir. 



2. ACER PSEUDO-PL ATANUS Plane Tree. 



(Sycamore.) 



3 ACER PLATANOIDES Norway Maple. 



4 AESCULUS HIPPOCASTANUM ....Horse-Chestnut. 



5 AILANTHUS GLANDULOSA Ailanthus. 



(China.) 



6 BETULA ALBA Silver Birch. 



7 CARPINUS BETHULUS European Hornbeam. 



8 FAGUS SYLVATICA European Beech. 



9 FRAXTNUS EXCELSTOB European Ash. 



10. GINGKO BTLOBA. (China) Gingko. 



(Japanese Maidenhair Iree.) 



11 JUGLANS BEGTAEA European Walnut. 



12 LARTX EUBOPAEA Larch. 



13 MORUS ALBA. (China) White Mulberry. 



14 PINUS AUSTBTACA Black or Austrian Pine. 



15 PINUS SYLVESTBTS Scotch Pine. 



16 PINUS MUGHO Mugho Pine. 



17 PTCEA EXCELSA Norway Spruce. 



