LEAVES. 



47 



cally correct, but merely made by comparison ; for in- 

 stance 



Oval (fig. 23), when about twice as long as broad, and 

 nearly of equal width at both ends. 



Oblong (fig. 24), three times, or more, longer than 

 broad, and differing but little in width in any part. 



Lance Shaped, or lanceolate, (fig. 25), when much long- 

 er than broad, and tapering gradually to a sharp point. 



Fig. 30. Fig. 29. Fig. 28 



Fig. 28, a leaf, folded, reflexed, and finely serrated, or toothed ; Fig. 29, coarsely 

 serrated ; Fig. 30, crenate or scolloped. 



Ovate (fig. 26), when twice as long as broad, tapering 

 to the apex, and widest towards the base. 



Obovate (fig. 27), the reverse of ovate, the greatest di- 

 ameter being in the upper part. 



. Round) roundish, approaching a circular form, like 

 fig. 22. 



The apex or point is often a distinguishing feature ; some 

 leaves terminate suddenly in a sharp point, others are 

 drawn out to a long, sharp point, peaked, whilst others are 

 .nearly round. Leaves differ much, too, in the form of the 



