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Based on the position of floral parts on...

Based on the position of floral parts on thalamus, the flowers, are described as hypogynous, perigynous and epigynous. Which of the following floral forms (A-D) represents the flowers of Rosa and Prunus respectively ?

A

A and B

B

B and C

C

C and D

D

B and D

Text Solution

Verified by Experts

The correct Answer is:
B
In perigynous condition of a flower, the gynoecium is situated in the centre and other floral parts are located on the rim of the thalamus almost at the same level. Ovary is said to be half-inferior, e.g., Rosa (flask-shaped thalamus), Prunus (Cup-shaped thalamus).
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Observe the figure carefully and give the answer of the following questions : (a) Write whether ovary is superior of inferior ? (b) What is the type of flower- hypogynous, perigynous or epigynous ? (c ) What type of ovule is shown in figure ? (d) What changes occur in C after fertilization ? (e ) What does A,B,C,D represent in the figure.

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Knowledge Check

  • Based on the position of calyx, corolla and androecium in respect of the ovary on thalamus, the flowers are described as hypogynous, perigynous and epigynous. The following conditions is found in

    A
    Mustard, China rose and brinjal
    B
    Plum,rose and peach
    C
    Guava, cucumber and the ray florests of sunflower
    D
    Rose, China rose and sunflower.

  • Which of the following floral parts forms pericarp after fertilization

    A
    Nucellus
    B
    Outer integument
    C
    Ovary wall
    D
    Inner integument

  • Which of the following descriptions of the flower mathces the floral diagram

    A
    Heterochlamydeous, gamopetalous and bisexual
    B
    Homochlamydeous, gamopetalous, tetramerous and unisexual
    C
    Homochlamydeous, gamopetalous, tetramerous and bisexual.
    D
    Homochlamydeous, gamopetalous, tetramerous and bisexual.

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    From among the following, identify the correct order of plants which exhibit hypogynous, perigynous and epigynous flowers respectively

    Match the following figures I, and II and III (I) Hypogynous (II) Perigynous flower (III) Epigynous flower

    When the other floral parts are arranged at the base of the gynoecium, the flower is called

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