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Morphology Of Flowering Plants

Question
CBSEENBI11025493
Wired Faculty App

In China rose the flowers are

  • actinomorphic, hypogynous with twisted aestivation

  • actinomorphic, epigynous with valvate aestivation

  • zygomorphic, hypogynous with imbricate aestivation

  • zygomorphic, epigynous with twisted aestivation

Solution

A.

actinomorphic, hypogynous with twisted aestivation

Actinomorphic or star-shaped can be divided into 3 or more identical sectors, which are related to each other by rotation about the centre of the flower, e.g., China rose.

Zygomorphic flowers can be divided by only a single plane into two mirror image halves, e.g., orchids.

Valvate aestivation The sepals or petals in a whorl just touch one another at the margin, e.g., Calotropis

Twisted aestivation One margin of the appendage overlaps that of the next one, e.g., China rose.

lmbricate aestivation the margins of sepals or petals overlap but not necessarily in specific direction, e.g., Cassia.

Some More Questions From Morphology of Flowering Plants Chapter

Explain with suitable examples the different types of phyllotaxy.

Define the following terms:

(a) aestivation

Define the following terms:

(c) placentation

Define the following terms:

(c) actinomorphic

Define the following terms:

(d) zygomorphic

Define the following terms:
(e) superior ovary

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

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