Question

describe the arrangement of floral members in relation to their insertation of thalamus

Answer 1

based on the position of calyx ,Corolla and the
androecium introspect of ovary on thalamus
flower may be explained of three types

1)hypogynous flower :gynoecium located at highest position and rest whrols of flower lies below it
eg: mustard and etcc

2)perigynous flower the gynoecium is situated in Centre other parts of flower lie on the Rim of thalamus almost at same level ovary is half inferior
eg: plum ,rose and wtcc

3) AP Ganesh flower the margins of thalamus grow upward enclosing the ovary fully and getting to it rest parts of the flower A Rise Above the ovary that is ovary is inferior in this flower
eg: sunflower, cucumber and etccc



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Answer 2

Hello!!

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Based on the position of the calyx, corolla, and androecium (with respect to the ovary on the thalamus), the flowers are described as hypognous, perigynous, and epigynous.

In hypogynous flowers, the ovary occupies the highest position on the thalamus while other floral parts are situated below it.

In such flowers, the ovary is superior e.g., China rose, mustard etc.

In perigynous flowers, the ovary is situated at the centre and other floral parts are arranged on the rim of the thalamus.

The ovary here is said to be half inferior e.g., plum, rose, peach.

In epigynous flowers, the thalamus grows around the ovary fusing with its wall.

The other floral parts are present above the ovary.

Hence, the ovary is said to be inferior e.g., flowers of guava and cucumber.

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Thanks!!