32 THE LEAF 



36. Shape and Texture of Leaves. Examine a number 

 of leaves of different kinds and see how they differ from 

 each other in regard to 



General Outline: whether round, oval, heart-shaped, 

 lanceolate, etc. (Figs. 27-33). 



27-33. Shapes of leaves: 27, lanceolate; 28, spatulate; 29, oval; so.obovate; 

 31, reniform, or kidney-shaped; 32, deltoid ; 33, lyrate. (27-31, after GRAY.) 



Base: tapering, obtuse, truncate, cordate, etc. (Figs. 

 34-38). 



34-38. Bases of leaves: 34, cordate; 35, sagittate; 36, oblique; 37, auricled ; 

 38, hastate. 



39-47. Apexes of leaves : 39, acuminate; 40, acute; 41. obtuse; 42, truncate; 

 43,44, emarginate; 45, obcordate; 46, cuspidate; 47, mucronate (GRAY). 



Apex : acute, acuminate, emarginate, etc. (Figs. 39-47). 



