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| Characters | Dicot stem | Dicot Root |
|---|---|---|
| 1. Epidermis | ||
| a. Nature of the cells | Thick walled | Thin walled |
| b. Epidermal hairs | Present, multi cellular trichomes | Present, unicellular root hairs |
| c. Cuticle | Present | Absent |
| d. Stomata | Present | Absent |
| 2. Hypodermis | Present, made up of collenchyma | Absent |
| 3. Endodermis | Wavy in appearance richly deposited with starch | Circular in appearances. Contains passage cells and casparian strips |
| 4. Perlcycle | Many layered, made up Of sclerenchyina | Single layered, made up of parenchyrna |
| 5. Medullary rays | Present | Replaced by conjuctive tissue |
| 6. Pith | Present | Absent |
| 7.Vascular bundles | ||
| a. Number | Eight | Eight, four each of xylem and phloem |
| b. Nature | Conjoint, collateral and open | Radial |
| c. Xylem | Endarch | Exarch |
Differences between monocot root and monocot stem
| Characters | Monocot stem | Monocot Root |
|---|---|---|
| 1.Epidermis | ||
| a.Nature of the cells | Thick walled | Thin walled |
| b.Epidermal hairs | Absent | Present, unicellular root hairs |
| c.Stomata | Present | Absent |
| 2. Hypodermis | Present, made up of sclerenchyma | Absent |
| 3. Ground tissue | Undifferentiated | Differentiated |
| 4. Vascular bundles | ||
| a. Number | Indefinite | Eight each of xylem and phloem Radial |
| b. Nature | Conjoint, collateral closed | Radial |
| c. Xylem | Endarch | Exarch |
| d. Xylem vessels | Only two protoxylem vessels and two metaxylem vessels in each bundle Present | More than two protoxylem and two metaxylem vessels in each bundle |
| e. Lysigenous cavity | Present | Absent |
| f. Phloem parenchyma | Present | Present |
