16 HOUGH'S AMERICAN WOODS. a 4 



a* BOTH COMPOUND AND DECOMPOUND LEAVES, the former often in fascicles, 



tree armed with large branching thorns; fr. a shining 

 c Long contorted and twisted linnear many-seeded pod. 



HONEY LOCUST (Gleditsia triacanthos ) . 

 c2 Short, oblique-ovate, 1-seeded pod. 



WATEB LOCUST (Gleditsia aquatica) . 



