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Morphology Of Flowering Plants

Question
CBSEENBI11002407
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In unilocular ovary with a single ovule, the placentation is 

  • marginal

  • basal

  • free central 

  • axile

Solution

B.

basal

In basal placentation, the ovary is bicarpellary, syncarpous and unilocular and a single ovule is borne at the base of ovary, eg, marigold. 
In marginal placentation, the ovary is simple unilocular and the ovules are arranged along the margin of ovary eg, pea. 

In free central placentation, the ovary is unilocular and the placenta bearing ovules arise from the central axis, e,g Stellaria. 
In axile placentation, the ovary is two or more chambered usually as many as the number of carpels, eg, Petunia. 

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