EXPLANATION OE PLATES. 



PLATE 4. 



LEAVES. 



Situation and position of leaves.- p. 22. 



Fig. 1. Alternate leaves, p. 23. 



2. Scattered. 



3. Opposite. 



4. Clustered. 



5- Verticillate or Whorled. 



6. Fasciculate. 



7. Imbricate. 

 8* Decussate. 

 9. Two- ranked. 



10. Unilateral. 



Insertion. p. 24. 



11. Peltate, p. 24. 



12. Amplexicaul or Clasping, p. 25. 



13. Connate. 



14. Perfoliate. 



15. Vaginant. 



16. Equitant. 



17. Decurrent. 



18. Flower-bearing. 



