PLATE 92 



Cross-Section of Rhizome of Ruellia ciliosa, Pursh. 

 1. Epidermis. 2. Cystolith. 3. Stone cell. 4. Cortical parenchyma. 

 5. Bast fibres. 6. Pericycle. 7. Xylem. 8. Pith. 



