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Morphology Of Flowering Plants

Question
CBSEENBI11002286
Wired Faculty App

 is the floral formula of

  • Allium

  • Sesbania

  • Petunia

  • Brassica

Solution

C.

Petunia

Floral formula is of Solanaceae family, i.e. of Petunia, while Brassica is form Brassicaceae whereas, Allium belongs to Liliaceae and Sesbania is from Fabaceae family.
As characteristic features of Solanaceae are
(i) Inflorescence - Cymose
(ii) Flower - Ebracteate, actinomorphic, bisexual, pedicellate. 
(iii) Calyx - Sepals 5, gamosepalous, valvate aestivation. 
(iv) Corolla - Petals 5, twisted or valvate aestivation
(v) Androecium - Stamens 5, epipetalous. 
(vi) Gynoecium - Bicarpellary, syncarpous, axile placentation, superior ovary and bilocular, which is represented as floral formula.

Some More Questions From Morphology of Flowering Plants Chapter

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

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.

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