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Chapter: 11th Botany : Chapter 4 : Reproductive Morphology of Angiosperm

Merosity

Merosity
Number of floral parts per whorl is called merosity.

Merosity

 

Number of floral parts per whorl is called merosity. Perianth merosity is the number of perianth parts per whorl.

 

1. Isomerous: Presence of same number of perianth parts in different whorls of a flower. (five sepals, five petals). Example: Hibiscus.

 

2. Anisomerous: Each whorl of flower contains different number of members. Example: Annona.

 

3.      Bimerous: Floral parts in two or multiples of two. Example: Ixora

 

4. Trimerous: Floral parts in three or multiples of three. Example: Allium, Monocots.

 

5. Tetramerous: Floral parts in four or multiples of four. Example: Brassica juncea.

 

6. Pentamerous: Floral parts in five or multiples of five. Example: Hibiscus, Dicots.

 




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11th Botany : Chapter 4 : Reproductive Morphology of Angiosperm


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