VEGETABLE POWDERS 



423 



Fig. 140. MYRICA. Bark. 



a. Larger sclerenchyma. 



6. Bast. 



c. Crystal-bearing fibers. 



d. Smaller sclerenchyma. 



e. Starch granules. 



/. Elongated sclerenchyma. 



g. Bark parenchyma. 



h. Prismatic crystals and starch granules. 



