EHIZOMES AND ROOTS. 



261 



PLATE CXV. 







FIG. 125. Powdered Yera Cruz Sarsaparilla ( x 240). 



a, Starch grains. 



CCP, Crystal cells. 



Cl, Calcium oxalate crystals. 



end, end', Endodermis in radial and transverse section. 



ep, e'p', Exodermis in radial and transverse section. 



fl, Sclerenchymatous fibres of stele. 



f p, Pericyclic fibres. 



I, Bast. 



m, m', Cells of the pith in longitudinal and transverse section. 



PC, p'c', Cortical parenchyma in longitudinal and transverse 



section. 

 v, Ve~~ w ls. 



