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  •   Umbel is a modification of Option: 1 SpikeOption: 2  Racemen


  Umbel is a modification of 

Option: 1

Spike


Option: 2

 Raceme 


Option: 3

 Both a and b 


Option: 4

 None of these 


Answers (1)

Racemose Inflorescence and Its Types - Category B and C

Umbel:

  • It is a modified raceme.
  • The main axis is severely reduced.
  • The flowers have pedicels of an equal length and appear to develop at the same point.
  • Each flower arises in the axil of a bract.
  • These bracts fuse to form a whorl called involucre.
  • Umbel inflorescence resembles a loose head of pedicellate flowers that are arranged centripetally, that is, the older flowers towards the periphery and the younger ones towards the centre.
  • It is a characteristic of the family Umbelliferae or Apiaceae.
  • In compound umbel, the reduced main axis branches and the individual umber are borne on these branches.
  • For example, coriander.


 

 

 

 

Umbel has pedicellate flowers. It is a modification of raceme. 

Posted by

Ramraj Saini

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