Explain the different types of placentation with example?

Explanation

(a) Marginal placentation : It is wvith the placentae along the margin of a unicarpellate ovary. eg., Fabaceae.
(b) Axile placentation : The placentae arises from the column in a compound ovary with septa. e.g., Hibiscus, tomato and lemon.
(c) Superficial placentation : Ovules arise from the surface of the septa, e.g., Nymphaeceae.
(d) Parietal : It is the placentae on the ovary walls or upon intruding partitions of a unilocular, compound ovary. e.g., Mustard, argemone and cucumber.
(e) Free-central placentation : It is with the placentae along the column in a compound ovary without septa. e.g., Caryophyllaceae, Dianthus and primrose.
(f) Basal : It is the placenta at the base of the ovary. e.g., Sunflower (Asteraceae) Marigold.