VEGETABLE POWDERS 



215 



Fig. 34. APOCYNUM ANDROSAEMIFOLIUM. 



a. Parenchyma cells bearing starch. Starch granules simple, very rarely two 

 compound, oval, hilum and stratification wanting or very indistinct. 



b. Granular substance (resin), nearly colorless. 



c. Sclerenchyma, very typical. Pores distinct, branching; color yellow. 



d. Deep reddish brown cork cells. 



e. Fragment of porous duct. 

 /. Wood elements. 



