VEGETABLE POWDERS 



419 



Fig. 138. METHYSTICUM. 



a. Bast cell. 



6. Sclerenchyma. 



c. Parenchyma with crystals. 



d. Parenchyma with starch. 



e. Parenchyma, longitudinal view. 

 /. Reticulate ducts. 



g. Tracheids. 



h. Starch granules. 



i. Scalariform duct. 



