EXPLANATION OF THE PLATES. 



11 



EXPLANATION OF THE PLATES. 



PLATE I. 



SIMPLE LEAVES. 



I 8 . Folium orbiculatum, a circular leaf, or that is perfectly 

 round. 



2. subrotundum, a leaf approaching to a circular 



figure. 



3. ovatum, an egg-shaped leaf. 



4_ male, a leaf having an oval or elliptical form. 



5. oblongum, an oblong leaf, in which the length 



greatly exceeds the breadth. 



6. lanceolatum, a lance-shaped leaf. 



7. lineare, a leaf of equal breadth throughout. 



8. subulatum, an awl-shaped leaf, which gradually 



tapers towards the top. 



9. reniforme, a leaf in figure resembling a kidney. 



10. cor datum, a heart-shaped leaf. 



11. lunulatum, a leaf resembling a crescent. 



12. triangulare, a three-angled leaf. 



13. sagittatum, a leaf which in form resembles the 



head of an arrow. 



14. cordato sagittatum, a leaf which partakes of both 



shapes delineated in the tenth and thirteenth 

 figures. 



15. . hastatum, an halberd-shaped leaf. 



16. Jissum, a leaf that is parted about half way down, 



with straight margins. 



17. trilobum, a leaf divided to the middle into three 



parts, with convex margins ; three-lobed. 



18. premorsum, a leaf so blunted at the apex as 



to give the appearance of being bitten off. 



19. lobatum, a leaf divided to the middle into several 



parts, with convex margins ; a lobed leaf. 



20. quinquangulare, a five-angled leaf. 



21. erosum, an eroded leaf; a sinuated leaf, in which 



the margin is broken by smaller hollows, as 

 if gnawed, or eaten away. 



22. palmatum, a palmate or hand-shaped leaf. 



Fig. 



23. Folium pinnatifidum, a simple leaf resembling a pinnate 



or winged compound one. 



24. laciniatum, a leaf that is irregularly cut; a 



jagged leaf. 



25. sinuatum, a leaf that has hollows, or wide gap- 



ing breaks, on the sides, (sinus, a bay.) 



26. dentato-sinuatum, a leaf, the sinuses of which 



are indented. 



27. retrorsum-sinuatum, a leaf, the sinuses .of which 



are turned backwards. 



28. partitum, a leaf deeply divided. 



29. repandum, a waved, scalloped, or serpentine- 



edged leaf. 



30. dentatum, an indented leaf. 



31. serratum, (serra, a saw,) a leaf having teeth 



resembling those of a saw, which point to the 

 apex. 



32. duplicato-serratum, a leaf that has a row of 



lesser serratures placed upon the greater ones ; 



twice-serrated. 

 33. duplicato-crenatum, a leaf in which there is a 



double row of the segments termed crenee or 



notches, the lesser placed upon the greater; 



twice-notched. Vide Fig. 38. 

 34. cartilagtneum, a leaf having a cartilaginous or 



gristly edge. 



35. acutd-crenatum, a leaf acutely notched. 



36. obtusil-crenatum, a leaf obtusely notched. 



37. plicatum, a leaf plaited like a fan, or a candle- 



shade. 



38. crenatum, (crena, a notch) a leaf, the edges of 



which are cut into small segments, whether 

 acute or ebtuse, which point not to either 

 extremity. Vide Fig. 33. and 36. a notched 

 leaf. 



