KEY TO THE TREES OF NEW ENGLAND. 



I. LEAVES SIMPLE. 



Leaves alternate A 



Outline entire AC 



Outline slightly indented .... AD 



Outline lobed A E 



Lobes entire A E F 



Lobes slightly indented . . . .AEG 



Lobes coarsely toothed . . . . A E H 



Leaves opposite B 



A C Ovate to oval, obscurely toothed Tupelo 



A C Ovate to oval Persimmon 



A C Also 3-lobed Sassafras 



A C Sometimes opposite, clustered at the ends of the 



branchlets Dogwoods 



A D Tremulous habit, oval Poplars 



A D Lanceolate, finely serrate, sometimes entire .... Willows 



^ ( Birches 



A 1) Ovate-oval, serrate, doubly serrate i TT , 



( Hornbeams 



A D Oval, serrate, oblong-lanceolate, veins terminating ( Beeches 



in teeth ( Chestnut 



A 1) Ovate-oblong, doubly serrate, surface rough Elms 



A D Ovate to ovate-lanceolate, serrate, surface slightly 



rough Hackberry 



A D Outline variable, ovate-oval, sometimes lobed (3-7). 



serrate-dentate Mulberry 



( Shadbush 



A D ( )vate, serrate, oblong -j Plums 



( Cherries 



A D Oval or oval-oblong, spines, evergreen Holly 



A D Broad-ovate, one-sided, serrate Linden 



A D Obovate, oval, lanceolate, oblong Chestnut oaks 



A D Broad-ovate to broad-elliptical, thorny Thorns 



A E F Lobes rounded Sassafras 



A E E Base truncate or heart-shaped ..." Tulip tree 



A E F Obtuse, rounded lobes White oaks 



A E F 3-5-lobed, white-tomentose to glabrous beneath . White poplar 



AEG 5-lobed, finely serrate Sweet gum 



