SEEDS. 



127 



PLATE LIV, 



FIG. 64. Powdered Ignatius Beans (x 240), 



ae, Outer portion of endosperm. 

 a'e', The same, after boiling in dilute alkali. 

 ai, Inner portion of endosperm. 

 a'i', The same, after boiling in dilute potash. 

 ap, Portions of cell wall from endosperm. 

 ep, Polygonal cells of seed-coat. 

 p, Ha r. 



p', Fragments of hairs. 

 pb, Base of hair. 

 ps, apex of hair. 



