Question

Question No. 2
• Marginal placentation seen in
which of the following family?
Answer
A. Papilionaceae
B. Mimosaceae
Caesalpiniacae
D. All the above
c.​

Answer 1

marginal placentation is seen in leguminosae family.

Answer 2

The placentation at the edges appears in the following family are:

Proper Choice D. All of the above

• The ovary in which the placenta forms a ridge near the ventral suture of the ovary and the ovules growing in two different rows is known to have a separate placenta or marginal placenta.

• This type of placentation is found in peas.

• The Papilionaceae family is the largest of the three Leguminales

        Mimosoideae is a genus of trees, herbs, lianas, and shrubs in the  

        pea family (Fabaceae) that thrive in tropical and subtropical  

        climates.

• Few cell phylogenies in the early 2000's show that two other families of the Fabaceae (Faboideae and Mimosoideae) were both built within Caesalpinioideae.

• When ovules grow on the inner walls of the ovary, the ovary is said to have parietal placentation.

• Side placentation is a feature of the Fabaceae / Leguminosae family.

• The flowers show a monocarpellary unilocular ovary and ovules are drawn in rows near the edge of the placenta formed near the ventral suture.