LEAVES. 



r. SPATTOATE, (spatulatiim.} PI. 5, % $ OF a 

 roundish figure, tapering into an oblong base. Ex. 

 Marsh rosemary, Statice Caroliniana. 



8. WEDGE-SHAPED, (cunciforme.^) PI. 5, fig. 8. 

 Broad and abrupt at the summit and tapering down to the 

 base. Ex. Purslane, Portidacca olemcea. 



9. LANCEOLATE, (lanceolatumS) PL 5, fig. 7* Of a 

 narrow oblong form tapering towards each end. Ex. 

 Field Plantain, Mantago lanceolata, and many Willows. 



Observation. A very common form. 



10. LINEAR, (lineareS) PI. 5, fig. 9. Narrow with 

 parallel sides. Ex. Most of the grasses. 



11. ACEEOSE, (oceroswm.) PI. 5, fig. 10. Needle- 

 shaped ; linear and evergreen, generally acute and rig- 

 ed. Ex. Pine, Fir, and Juniper. 



12. TRIANGULAR, (triangulare.} PL 5, fig. 11. 

 Having three prominent angles, without any reference 

 to their measurement or direction. Ex. Striped Ma- 

 ple, Acer striatum. 



13. QUADRANGULAR, (quadrangulare.) PI. 5, fig. 12. 

 With four angles. Ex. Tulip- Tree, Liriodendron tuii- 

 pifera. 



14. QUINQJJ ANGULAR, (quinquangulareS) PI. 5, fig. 

 13, With five angles. 



15. DELTOID, (iielt aides.') PI. 5, fig. 14. Shaped 

 like the Greek letter A, Delta. 



Observation. Trowel-shaped, ha.ving- three angles, of which the 

 terminal one is much farther removed from the base than the late- 

 ral one. Smith. 



16. RHOMBOID, (rhomheum.} PL 5, fig. 15. Dia- 

 mond-shaped. Ex. Purple Trillium, Trillium erectum. 



17. RENIFORM, (raijf/orae.) PI. 5, fig. 16. Kid- 

 ney-shaped ; a broad roundish leaf, whose base is hol- 

 lowed out. Ex. Canada Snake-root, Asamm Canadense. 



18. CORDATE, (cordalum.^ PI. 5, fig. 17. Heart- 

 shaped ; ovate, hollowed out at the base, Ex. Sun- 

 flower, and many Vio^rts* 



