Contr. Nat. Herb., Vol. IX. 



PLATE XV. 



SEA BEANS, SHOWING AIR SPACES WHICH GIVE THEM BUOYANCY. SECTION OF POD 

 AND SEEDS OF LENS PHASEOLOIDES HAVING AIR SPACE INCLOSED BETWEEN COTY- 

 LEDONS. SEEDS OF GUILANDINA CRISTA WITH AIR SPACE BETWEEN THE KERNEL 

 AND THE SHELL. 



