VEGETABLE POWDERS 



491 



Fig. 175. SENEGA. 



a. Parenchyma with fat. 



b. e. Collenchymatous tissue. 



c. Cork. 



d. Collenchyma and phloem group, longitudinal view. 

 /. Parenchyma, longitudinal view. 



g. Tracheids. 

 h. Porous duct. 



