Stems modified into flat green organs performing the functions of leaves are known as:

  • Option 1)

    Cladodes

  • Option 2)

    Phyllodes

  • Option 3)

    Phylloclades

  • Option 4)

    Scales

 

Answers (1)

As learnt in

Types of special stem modifications -

Phyllacodes - Flat, fleshy, green leaf like structure which has a succession of nodes and internodes at long and short intervals. Leaves are modified into spine or scale to check transpiration. Photosynthesis takes place in phyllacodes. Ex: Opuntia, cereus, Euphorbia

Cladode - Phylloclade with one internode is called cladode. Ex: Aspargus & Ruscus

Thorn - Modification of axillary bud or terminal bud of the stem. It may bear leaves, flowers & Endogenous in origin. Ex: Catissa (Karonda), pomegranate, citrus, Bougainvillae

Tendrils - Helps the plant to climb, When it comes in contact with the neighbouring object it coils round it. It is modification of axillary bud and exogenous in origin. Ex: Grapes, cucumber, pumkins, watermelon etc

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Option 1)

Cladodes

Incorrect option

Option 2)

Phyllodes

Incorrect option

Option 3)

Phylloclades

correct option

Option 4)

Scales

Incorrect option

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