Scanning electron micrograph of a shoot apical meristem with leaf primordia
Scanning electron micrograph of a more advanced leaf primordia
The very young leaf is lobed and basically simple.
The leaf is now obviously compound. As the leaf develops, it grows in size and well as in number of leaflets.
At this point the leaf is quite large. Note that the mature leaflets are themselves compound.

Introduction | Flowers&Fruit | Roots | Stems | Leaves

© Thomas L. Rost 1996
Section of Plant Biology Division of Biological Sciences