EXPLANATION OF THE PLATES. 



PLATE I. 



1 . Fibrous root. 



2. Creeping root. 



S. Tapering, or spindle-shaped root. 



4. Tuberous, or knobbed root. 



5. Abrupt root. 



6. Solid bulbous root. 



7. Coated bulbous root. 



8. Scaly bulbous root. 



9. Granulated root. 



10. Forked, or dichotonious stem, 



11. Creeping stem. 



12. Clinging- stem. 



13. Twining stem. 



14. Jointed, (articulated,) stem, 



15. Scaly stem. 



PLATE IL 



16. Jointed stem. * ^^ 



17. Knotted stem. . . 



18. Kneed, (geniculated,) stem. 



19. Scape, jflower-stalk, and leaves immediately from the 



root, (radical.) 



LEAVES, 



20. Stalkless, (sessile.) 



21. Stalked. 



22. Alternate. 



23. 24. Stem, (cauline,) leaves. 



23. Also opposite. 



24. Also scattered. 



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