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CHAPTER XI
LEAVES—FORM AND POSITION
Leaves may be studied from four points of view,—with
reference (1) to their kinds and shapes; (2) their position, or
arrangement on the plant; (3) their anatomy, or structure;
(4) their function, or the work they
perform. This chapter is concerned
with the first two categories.
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Fig. 88.—A Simple Netted-veined Leaf.
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Fig. 89.—A Simple Parallel-veined Leaf.
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Fig. 90.—Compound or Branched Leaf of Brake (a common fern).
Kinds.—Leaves are simple or unbranched (Figs. 88, 89), and compound or branched (Fig. 90).
