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sapnadixit , asked a question
Subject: Biology , asked on 29/8/09

what are hypogynous perigynous and epigynous flowers.

Gaurav Joshi , added an answer, on 17/9/09
99 helpful votes in Biology

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Ella Edward , added an answer, on 20/5/17
678 helpful votes in Biology
Hypogynous, Perigynous and Epigynous Flowers | Plants Article Shared by M Manisha

 

Hypogyny Flowers:

1. Thalamus is convex or conical.

2. Androperianth is borne below the level of ovary.

3. Ovary is superior. Other parts are inferior.

 

4. Thalamus is not fused with the wall of ovary;

5. No part of the thalamus is expanded except for a central projection.

6. Whole of the pistil is visible from outside.

7. Constituents of androperianth develop separately and are well-spread.

Perigyny Flowers:

1. Thalamus is disc-shaped, cup -shaped or flask-shaped.

2. Androperianth is borne around or above the level of ovary.

3. Ovary is superior. Other parts are inferior.

4. Thalamus is free from ovary wall.

 

5. Periphery of the thalamus is expanded to form hypanthium.

6. Whole pistil may or may not be visible from outside.

7. Constituents of androperianth often develop from a common base.

 Epigyny Flowers:

1. Thalamus is usually flask shaped.

 

2. Androperianth is borne above the level of ovary.

3. Ovary is inferior while other parts are superior.

4. Thalamus is fused with the wall of ovary.

5. Thalamus is hollowed out.

6. Only style and stigma are visible from outside.

7. Constituents of androperianth develop jointly from the neck of hollowed out thalamus.

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Honey Jaiswal , added an answer, on 11/5/17
6 helpful votes in Biology
Hypogynous :- when petals,sepals and stamens are situated below the ovary, then the flower is called hypogynous and in this condition ovary will be superior. e.g. mustard,china rose,brjnjal etc
Perigynous :- In it thalamus grows upwardly and form a cup shaped structure. On the margin of thalamus floral parts are attached except gynoecium which lies at the basal part. So in this condition gynoecium is situated below the floral parts. But ovary in this condition is said to be half inferior. E.g.rose,plum,peach etc
Epigynous :- when petals,sepals and stamens are situated above the ovary, then the ovary is said to be inferior and rest of the floral parts superior. E.g.guava,apple,cucumber and the rayflorets of sunflower.
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Aruna Kothapally , added an answer, on 21/5/17
2 helpful votes in Biology
in hypogynous flowers ovary occupies the highest position and all the floral whorls will be inferior to ovary where as in epigynous flowers occupies the inferior position that means it will be fused with thalamus and the remaining floral parts will be superior to ovary in perigynous flowers ovary occupies the medium position
 
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Ddd , added an answer, on 26/11/14
    • "Discussion on the Draft Constitution / Constitutional Debates" Nov 1949.
    • If we wish to maintain democracy not merely in form, but also in fact, what must we do ?
    • The first thing in my judgement we must do is to hold fast to constitutional methods of achieving our social and economic objectives.
    • It means we must abandon the bloody methods of revolution. It means that we must abandon the method of civil disobedience, non-cooperation and satyagraha. When there was no way left for constitutional methods for achieving economic and social objectives, there was a great deal of justification for unconstitutional methods. But where constitutional methods are open, there can be no justification for these unconstitutional methods.
    • These methods are nothing but the Grammar of Anarchy and the sooner they are abandoned, the better for us.
    • -The Honourable Dr. BABASAHEB AMBEDKAR
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Ddd , added an answer, on 26/11/14

hypogenous flower occupies the highest position while the other parts are situated below it

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Nitasha , added an answer, 1 week, 1 day ago
Hypogynous = in which ovary is superior and other parts of flower are inferior. Epigynous = in which ovary is inferior and all other parts or floral organs are syperior. Perigynous = in which ovary is situated in the center and all other parts of flower are located at the rim of thalamus or torus.
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Gdhs , added an answer, 2 weeks, 6 days ago
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rilexco... , added an answer, on 24/11/11
7 unhelpful votes in Biology

what are hypogynous,perigynous and epigynous flowers.

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Ddd , added an answer, on 26/11/14
  • perigynous flower askgklfgfd hlghjj hgk dfjijkfggjofih8igfh8j jsgfohijfdhghj
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rilexco... , added an answer, on 24/11/11
7 unhelpful votes in Biology

what are hypogynous,perigynous and epigynous flowers

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