OD. Seeds several, in wailed cores 

 E. Cores papery 



F. Fruit small, berry-like The Juneberries 



FF. Fruit large The Apples 



EE. Cores bony; fruit thin-fleshed The Hawthorns 



CC. Fruits dry 



D. Seeds borne in protecting cups or burs 



E. Burs scaly, not opening when ripe The Oaks 



EE. Burs spiny, opening in four parts 



F. Nuts 3-angled, small The Beeches 



FF. Nuts conical, larger The Chestnuts 



DD. Seeds borne in swinging balls 



E. Leaves star-shaped; twigs corky-ridged The Sweet Gum 



EE. Leaves broad, 3- to 5-lobed; bark white, shedding in patches 



The Sycamores 

 DDD. Seeds borne in cone-like heads 



E. Bark splitting horizontally The Birches 



EE. Bark smooth, or furrowed vertically 



F. Leaves pointed at apex; seeds scarlet, berry-like The Magnolias 



FF. Leaves square or notched at apex; seeds dry, with flat wing 



The Tulip Tree 



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