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. |