Question

Explain with the suitable examples the different types of phyllotaxy

Answer 1

Explanation:

“ Phyllotaxy refers to the pattern or arrangement of leaves on the stem or branch of a plant ”.

There are three types of Phyllotaxy which are as follows :

1. ALTERNATE PHYLLOTAXY

In this type of leaf arrangement, a single leaf arises at each node of a branch in alternate manner.

This type of Phyllotaxy is observed in the Sunflower, Mustard, Peepal, China rose, etc.

• OPPOSITE PHYLLOTAXY

In this type of leaf arrangement, a pair of leaves arise at each node. The leaves lie opposite to each other in this case.

It is found in Guava, Calotropis, Jamun plants, etc.

• WHORLED PHYLLOTAXY

In this type of leaf arrangement, more than two leaves arise at a node.

It is found in Alstonia.

Answer 2

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➽ Phyllotaxy is the arrangement or distribution of leaves on the stem or it branches in such a way that they receive maximum sunlight to perform photosynthesis.

☛ Phyllotaxy is of three types :-

Alternate or spiral :- a single leaf arise each node in an alternate manner, e.g. Hibiscus rosa sinensis.

Opposite :- two leaves are borne from the node in opposite directions. e.g. Quisqualis,Calotropis.

Whorled or Verticillate :- more than two leaves are borne on a node, which form a whorl.