Dicot Stem:

1. Vascular bundles are arranged in ring.

2. Vascular bundles are uniform in size.

3. Each Vascular bundle is conjoint, collateral or bicollateral and open

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4. Phloem peranchyma are present.

5. Bundle sheath is absent.

6. No water containing cavity is present.

Monocot Stem:

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1. Vascular bundles are scattered in ground tissues.

2. Vascular bundles vary in their size.

3. Each Vascular bundle is conjoint, collateral and closed.

4. Phloem parenchymas are absent.

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5. Bundle sheath is developed either partly or completely surrounding the vascular bundle.

6. Water containing cavity is present.