Dicot Stem Anatomy:
1. In dicot stem the epidermal multicellular stem hairs are present.
2. Hypodermis present or absent; if present it is collenchymatous.
3. Cortex is well differentiated.
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4. Endodermis and pericycle layers are present.
4. Vascular bundles are arranged in a ring, they are conjoint, collateral, open and endarch.
6. Pith is distinct and centrally located.
Monocot Stem Anatomy:
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1. Usually stem hair are absent.
2. Hypodermic generally present and it is sclerenchymatous.
3. No cortex, the entire tissue below hyperdermis is ground tissue.
4. No endodermis of pericylce.
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5. Vascular bundles are scattered in the ground tissue. they are conjoint, collateral and closed.
6. Pith is not differentiated.