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Question

Identify the incorrect correlation.

A
China rose : alternate phyllotaxy
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B
Calotropis : opposite phyllotaxy
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C
Alstonia : whorled phyllotaxy
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D
Mustard : whorled phyllotaxy
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Solution

The correct option is D Mustard : whorled phyllotaxy
The pattern of arrangement of leaves on the stem is called phyllotaxy. There are three types of phyllotaxy:

An alternate type of phyllotaxy: When only a single leaf develops at each node alternatively. Example: China rose, sunflower, mustard.

Opposite phyllotaxy: When a pair of leaves develops at each node opposite to each other. Example: Guava plants, Calotropis.

Whorled phyllotaxy: When more than two leaves develop at the nodes to form a whorl of leaves. Examples: Alstonia.

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