PLATE 90 



RuELLiA Root {Ruellia ciliosa, Pursh.). 



I. Epidermis with root hair. 2. Parenchyma cells with dark content--. 

 3. Sclerid. 4. Parenchyma without dark ceU contents. 5. Endodcrmis. 

 6. Bast fibers and phloem. 7. Cambium. 8. Xylem. 10. Pith. 



