Explain with suitable examples, the different types of phyllotaxy.

Answer:

The patterns of arrangement of leaves on the stem are called Phyllotaxy. There are three types of Phyllotaxy

  • An alternate type of phyllotaxy – When only a single leaf develops at each node alternatively

Example: Rose

  • Opposite phyllotaxy – When a pair of leaves develops at each node opposite to each other.

Example: Guava plants

  • Whorled phyllotaxy – When more than two leaves develop at the nodes to form a whorl of leaves.

Examples – Kaner, sunflower Tulsi plants.

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