THE J.KAF MAIiCIN 



187 



special forms of tootliiiii;- arc i-cconni/cd, in accordance with llic form 

 and direction of the teetli. When the hitter jx.int in an outward direc- 

 tion the margin is caUed Dentate (Fiji;. ")."54); wlieii toward the ai)ex of 

 the leaf, Serrate (Fig. I'^'.V^). When, instead of l)einij; pointed, the teeth 

 are rounded, the margin is Crenate (Fig. 530). 



Margins: Fig. 530. Crenate {Daliharda) . 531. Doubly serrate, the teeth appressed (Ulmus). 532. 

 Obsoletely serrate (.Gaultheria) . 533. Serrate. 534. Dentate (Viburnum). 535. Serrulate (Vibur- 

 num). 530. Ropand (Hamnmclis). 537. Sinuate. 



Diminutives of these terms, indicating that the teeth are very small, 

 are Denticulate, Serrulate (Fig. 535), and Cremilate. To any of these 

 terms tiie word "Minutely" may be prefixed as indicating that the 

 teeth are still smaller. Of each of these three ])riiici])al forms there 

 are a number of sub-forms. 



When the teeth bear smaller or secondary teeth, the word " Doubly" 

 is prefixed (Fig. 531, (l()ubl>- serrate). 



When serrate teeth ha\-e their ])()ints \-ery stronglx' directed toward 

 the apex or ai)pearing as though pressed inward against the margin, 

 they are called .Xpprcssed (Fig. o.n , partly). They may even be 

 Incurved. When, ui)on the other hand, the ends of the teeth are turned 

 outward, they arc called Salient. When the points of the teeth are very 



