Question
Draw illustrations to bring out the anatomical difference between Monocot stem and dicot stem.
✓
Answer
Differences between dicot and monocot stem are:
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Monocot Stem
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Dicot Stem
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1
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Internally, the stem is not differentiated into cortex, endodermis, etc.
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Internally, the stem is differentiated into epidermis, cortex, endodermis, pericycle, stealer system and to pith.
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2
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Hypodermis is sclerenchymatous.
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Hypodermis is collenchymatous.
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3
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Vascular bundles are scattered in the parenchymatous ground tissue.
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Vascular bundles are arranged in a ring.
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4
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Medullary rays are absent.
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Medullay rays occur in between vascular bundles.
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5
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Vascular bundles are surrounded by bundle sheath.
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Vascular bundles are not surrounded by bundle sheath.
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6
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Secondary growth does not occur, since cambium is absent.
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Secondary growth takes place due to the presence of cambium.
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