STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
MORPHOLOGY OF FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dianthus
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Argemone
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Brassica
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Citrus
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Detailed explanation-1: -In free central placentation, ovules are borne around a central column, which is not connected with the ovary wall by any septum. e.g. Dianthus. Brassica and Argemone have parietal placentation while citrus has axile placentation.
Detailed explanation-2: -The plant Dianthus has free-central placentation arrangement in it’s ovary. Ovules are attached on the main axis of the placenta.
Detailed explanation-3: -Dianthus is an annual flowering herb has a free central placentation as ovules are borne on the central axis as the septum is absent.
Detailed explanation-4: -Free central placentation is present in a single-chambered ovary with ovules borne on the central axis. Free central placentation can be seen in Dianthus, Primrose.
Detailed explanation-5: -Free-central-a placentation type in which the ovules are borne on a free-standing central placenta within the ovary. This example is primrose (Primula cultivar).