SKCTION 7. J 



ORDINARY LEAVEvS. 



55 



Entire, wheu tlieir general outline is completely fllled out, so that the 

 nuu'gin is an even line, without teeth or notches. 



Serrate, or Scnc-toothed, when the margin only is cut iuto sharp teeth, 

 like those of a saw, and pointing forwards : as in Fig. 142. 



Dentate, or Toothed, 



when such I eeth point f'\!'j\ lw\ 



outwards, instead of 

 forwards ; as in Eig. 

 143. 



Crenate, or Scal- 

 loped, wheu the teeth 

 are broad and round- 

 ed ; as in Fig. 144. 



Repand, Undulate, \ 

 or Wavf, wheu the \ 

 margin of the leaf 

 forms a wavy line, 

 bending slightly in- 

 wards and outwards in succession; as in Fig. 145. 



Sinuate, when the margin is more strongly sinuous or turned inwards 

 and outwards ; as in Fig. 14G. 



Incised, Cut, or Jagged, wheu the margin is cut iuto sharp, deep, and 

 irregular teeth or incisions ; as in Fig. 147. 



Lobed, when deeply cut, Then the pieces are in a general way called 

 Lobes. The nuuiber of the lobes is briefly expressed by tlie phrase ttco- 

 lobed, ihree-lobed, five-lobed, mang -lobed, etc., as the case may be. 



140. When the depth and character of the lobing needs to be more par- 

 ticularly specified, the following terms are employed, viz. : — 



Lobed, in a special sense, wheu the incisions do not extend deeper than 

 about half-way between the margin and the centre of the blade, if so far, 

 and are more or less rounded ; as in the leaves of the Post-Oak, Fig. 148, 

 and the Hepatica, Fig. 152. 



Cleft, when the incisions extend half way down or more, and especially 

 when they arc sharp; as in Fig. 140, 153. And the phrases two-cleft, or, 

 in the Latin form, bifid, three-cleft or trifid, four-cleft or quadrifid, five- 

 cleft or quinquefid, etc., or mang-cleft, in the Latin form, multifid, — express 

 the number of the Segments, or portions. 



Farted, when the incisions are still deeper, but yet do not quite reach 

 to the midrib or the base of the blade; as in Fig. 150, 154. And 

 the terms two-parted, three-parted, etc., express the number of such 

 divisions." 



Divided, when the incisions extend quite to the midrib, as in the lower 

 part of Fig. 151, or to the leaf-stalk, as in Fig. 155 ; which really makes the 



Fig. 112-147. Kinds of margin of leaves- 



