Explain characteristics of different taxons of Bentham and Hooker’s classification.

Question

Explain the characteristics of different taxons of Bentham and Hooker’s classification.

Answer 1

Class I : Dicotyledonae:
• Main characters of this class are:

• Two cotyledons in seed with embryo.
• Open and ring type of vascular bundles
• Reticulate venation in leaves.
• Pentamerous or tetramerous flower.

Class II : Monocotyledonae:
• This group includes angiosperms in which the seed bears only one cotyledon.

• The leaves are simple and exhibit parallel venation.
• Closed type of vascular bundles because cambium is absent in it. Vascular bundles are scattered in parenchyma.
• Flowers are usually trimerous. Roots are adventitious.
• It is divided into the following seven series: