Advertisements
Advertisements
प्रश्न
Describe the arrangement of floral members in relation to their insertion on thalamus?
उत्तर
 |
 |
 |
 |
| (a) Hypogynous | (b) & (c) Perigynous | (d) Epigynous | |
- Hypogynous: In the hypogynous flower, the gynoecium occupies the highest position, while the other parts are situated below it. The ovary in such flowers is said to be superior, e.g., mustard, china rose, and brinjal.
- Perigynous: If the gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus, almost at the same level, it is called perigynous.
- Epigynous: In epigynous flowers, the margin of the thalamus grows upward, enclosing the ovary completely and getting fused with it; the other parts of the flower arise above the ovary. Hence, the ovary is said to be inferior, as in the flowers of guava and cucumber and the ray florets of sunflower.
APPEARS IN
संबंधित प्रश्न
Define the following term:
Zygomorphic
What is a flower?
Describe the parts of a typical angiosperm flower.
Find out the floral formula for a bisexual flower with bract, regular, pentamerous, distinct calyx and corolla, superior ovary without bracteole.
Give the technical term for the following
A sterile stamen
Give the technical term for the following
Stamens are united in one bunch
Give the technical term for the following
Stamens are attached to the petals
Correlate with respect to type of aestivation.
Calotropis : Valvate :: China rose: ______.
When gynoecium is present above all parts of the flower this condition is called ______.
In epigynous flower, ovary is situated below the ______.
Differentiate between pedicel and peduncle
Differentiate between spike and spadix
Differentiate between stamen and staminoid
Sunflower is not a flower. Explain.
