_Crenate_, or _Scalloped_, when the teeth are broad and rounded; as in Fig. 144. _Repand_, _Undulate_, or _Wavy_, when the margin of the leaf forms a wavy line, bending slightly inwards and outwards in succession; as in Fig. 145. _Sinuate_, when the margin is more strongly sinuous or turned inwards and outwards; as in Fig. 146. _Incised_, _Cut_, or _Jagged_, when the margin is cut into 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 number of the lobes is briefly expressed by the phrase _two-lobed_, _three-lobed_, _five-lobed_, _many-lobed_, etc., as the case may be. 140. When the depth and character of the lobing needs to be more particularly specified, the following terms are employed, viz.:-- _Lobed_, in a special sense, when 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 are sharp; as in Fig. 149, 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 _many-cleft_, in the Latin form, _multifid_,--express the number of the _Segments_, or portions. _Parted_, 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 leaf compound. Here, using the Latin form, the leaf is said to be _bisected_, _trisected_ (Fig. 155), etc., according to the number of the divisions. [Illustration: Fig. 148, pinnately lobed; 149, pinnately cleft; 150, pinnately parted; 151, pinnately divided, leaves.] [Illustration: Fig. 152, palmately three-lobed; 153, palmately three-cleft; 154, palmately three-parted; 155, palmately three-divided or trisected, leaves.] 141. =The Mode of Lobing or Division= corresponds to that of the veining, whether _pinnately veined_ or _palmately veined_. In the former the notches or incisions, or _sinuses_, coming between the principal veins or ribs are directed toward the midrib: in the latter they are directed toward the apex of the petiole; as the figures show. 142. So degree and mode of division may be tersely expressed in brief phrases. Thus, in the four upper figures of pinnately veined leaves, the first is said to be _pinnately lobed_ (in the special sense), the second _pinnately cleft_ (or _pinnatifid_ in Latin form), the third _pinnately parted_, the fourth _pinnately divided_, or _pinnatisected_.