Fig. 133-141. Forms of the apex of leaves.
[138.] As to degree and nature of Division, there is first of all the difference between
Simple Leaves, those in which the blade is of one piece, however much it may be cut up, and
Compound Leaves, those in which the blade consists of two or more separate pieces, upon a common leaf-stalk or support. Yet between these two kinds every intermediate gradation is to be met with.
Fig. 142-147. Kinds of margin of leaves.
[139.] As to Particular Outlines of Simple Leaves (and the same applies to their separate parts), they are