Ovarian parts are fused, style and stigmas free but ovary part is unilocular with free central placentation. The plant is

Michelia

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Nymphaea

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Abutilon

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Dianthus

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Solution

The correct option is D
Dianthus

Dianthus belongs to the family Caryophyllaceae. The gynoecium of the flower fused ovarian parts but the style and stigmas remain free. The number of style and stigma correspond to the individual ovary, so the number of ovaries can be counted from them (2 - 5). The ovary is unilocular with many ovules arranged in free central placentation. This type of placentation is the characteristic feature of Caryophyllaceae. In this pattern, the ovules are arranged on a central axis and the central axis is not attached to the wall of an ovary.
Hence, the correct answer is Dianthus.

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