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* Absence of cuticle and stomata.
* Presence of unicellular root hairs.
* Presence of passage cells and casparian thickenings in the endodermis.
* Presence of parenchyma cells in the pericycle.
* Presence of conjuctive tissue.
* Presence of a distinct pith.
* Presence of radial vascular bundles with polyarch condition and an exarch xylem
Dicot Root* Presence of thin walled cells in the epiblema.* Absence of cuticle, and stomata.
* Presence of unicellular root hairs.
* Absence of hypodermis.
* Presence of passage cells and casparian thickenings in the endodermis.
* Presence of uniseriate pericycle made up of parenchyma.
* Presence of conjuctive tissue.
* Absence of pith.
* Presence of radial vascular bundles exhibiting tetrach condition with exarch xylem
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.
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:
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.
5. Vascular bundles are scattered in the ground tissue. they are conjoint, collateral and closed.
6. Pith is not differentiated. (S_A)
1. Secondary xylem and phloem are produced as a result of secondary growth in dicot roots; Secondary growth is absent in monocot roots.
2. Primary vascular strands are less than six in dicot root & more than six in monocot roots.
3. Pith is absent in dicot root; it is present in monocot root.
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