MARGINS OF LEAVES. 125 



N ^ 



leaves of Centaurea Cyanus, t. 277 ; also Nym- 

 phcea Lotus, Curt. Mag. t. 797. 



Serratum,f. 80, serrated, when the teeth are sharp, 

 and resemble those of a saw, pointing towards 

 the extremity of the leaf. Examples of this are 

 frequent, as Urtica, t. 148 and 1236, Rosa, 

 t. 992, &c., Comarum palustre, t. 172, and Se- 

 necio paludosus, t. 650; also Dillenia indica, 

 Exot. Bot. t. 2. Some leaves are doubly serrated, 

 duplicato-serrata, having a series of smaller ser- 

 ratures intermixed with the larger, as Mespilus 

 grandiflora, t. 18, and Campanula Trachdium, 

 EngL Bot. t. 12. 



Serrulatum^f. 63, minutely serrated, is used when 

 the teeth are very fine, as in Polygonum amphi- 

 bium, t. 436, and Empkurum serrulatum, Exot. 

 Bot. t. 63. 



Crenatum, f. 81, notched, or crenate, when the 

 teeth are rounded, and not directed towards either 

 end of the leaf, as in Ground-Ivy, Glechoma 

 hederacea, ~t. 853, Chrysosplenium, t. 54 and 

 490, and Sibthorpla europcea, t. 649- In Saxi- 

 fraga Geum, t. 1561, the leaves are sharply cre- 

 nate. In the two British species of Salvia, t. 153 

 and 154, the radical leaves are doubly crenate, 

 /. 82. 



Erosum, f. 83, jagged, irregularly cut or notched, 

 especially when otherwise divided besides, as in 

 Senecio squalidus, t. 600. 



