THE WALNUTS AND THE HICKORIES 



RESINOUS, aromatic trees with hard wood. Leaves decidu- 

 ous, alternate, pinnately compound. Flowers monoecious: 

 stamina te lateral, in catkins; pistillate terminal, in spikes, or 

 solitary. Fruit, a bony nut enclosed in a spongy husk. 



KEY TO GENERA 



A. Pith of twigs chambered; husk not opening at ma- 

 turity; nuts not smooth. 



1. Genus JUGLANS, Linn. 



AA. Pith of twigs solid; husk opening by 4 valves; nuts 

 smooth. 



2. Genus HICORIA, Raf. 



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