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Morphology Of Flowering Plants

Question
CBSEENBI11002289
Wired Faculty App

Perigynous flowers are found in

  • guava

  • cucumber

  • China rose

  • rose

Solution

D.

rose

Perigynous flower are found in rose. 
Flowers can be categorised based on the position of the ovary in relation to the other parts of the flower. When the floral parts arise from a position below the ovary, the flower is said to be hypogynous (hypo = below; gynous = flower) and the ovary is superior, e.g. China rose. 
When the floral parts arise from a position above the ovary, the flower is epigynous (epi = above) and ovary is inferior, e.g. cucumber and guava.
There is another special case of an inferior ovary where the bottom of sepals. petals and stamens are fused into a cup around the ovary called hypanthium (floral cup). Such, flower is termed as perigynous (peri = around), e.g. rose. 

Some More Questions From Morphology of Flowering Plants Chapter

Define the following terms:
perigynous flower

Define the following terms:
epipetalous stamen

Define the following terms:

(a) Racemose and cymose inflorescence

Define the following terms:
(b) Fibrous root and adventitious root

Define the following terms:
(c) Apocarpous and syncarpous ovary

Draw the labelled diagram of the following:
(i) Gram seed     (ii)    V.S. of maize seed

Describe modifications of stem with suitable examples.

Take one flower each of the families Fabaceae and Solanaceae and write its semi-technical description. Also draw their floral diagram after studying them.

Describe the various types of placentations found in flowering plants.

What is a flower? Describe the parts of a typical angiosperm flower

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