BABKS. 



203 



PLATE LXXXiX. 



FIG. 99. Powdered Pomegranate Root Bark (x 240) 



a, Starch grains. 



cr, Crystals of calcium oxalate. 



I, I', I", Bast ray, in radial, transverse and tangential section. 



le, le', Choriphelloid cells of lenticels. 



p, Prismatic crystals of calcium oxalate (from the cortex). 



pc, Cortical parenchyma with prismatic crystals. 



ph, Phelloderm cells. 



sc, Sclerenchymatous cells. 



se, Outer layers of cork, surface view. 



s'e', The same in profile. 



si, Inner layers of cork, surface view. 



s'i', The same, in profile. 



