Back to section

Type of Network Venation


Pinnate network venation
Mangifera indica

Palmate (divergent)
Hibiscus mutabilis

Palmate (convergent)
Plantago major

Exceptions
There are many exceptions in classification. The phyllode (false leaf) of Acacia sp. is modified from a branchlet with parakkek venation although it is a dicot. Besides, the leaf of Casuarina equisetifolia is highly reduced in size. The short scale leaves are almost similar to the needle leaves of Pinus sp. is a gymnosperm while Casuarina sp. is a dicot of angiosperm.


Parallel venation
Dicotyledon

Acacia confusa

Parallel venation
Dicotyledon

Acacia mangium

Needle-shape branchlet
Dicotyledon

Casuarina equisetifolia

Back to section


Copyright (C) 1999 by Wah Yan College, Kowloon
All rights reserved