EHIZOMES AND BOOTS. 



263 



PLATE CXVI. 



FIG. 126. Powdered Senega Root (x 240). 



I, I', Bast tissue in longitudinal and transverse section. 



pc, p'c'. Cortical parenchyma in transverse and longitudinal 



section. 



pi, Parenchyma of wood. 



s,*s', Cork of root, in surface view and section. 

 SS, Cork of crown of root. 



" V, V8, 



