VEGETABLE POWDERS 



233 



Fig. 43. ASPIDOSPERMA. 



a. Very large bast cell, all lined with crystal bearing cells. 



b. Selerenchyma cells. 



c. Parenchyma with phloem group. 



d. Parenchyma. 



e. Sclerenchymatous tracheids. 

 /. Prismatic crystals. 



g. Small celled parenchyma. 



h. Crystal bearing parenchyma and stone cell. 



