In stem there exist three tissue systems — dermal, vascular and ground tissue, which respectively consist of epidermis, vascular bundle and all tissues except the former two. A great diversity is observed in the arrangement and structure of primary tissues, a brief account of them that commonly occur in mature stems of dicot is mentioned below beginning from the periphery [...]
In dicotyledon the vascular bundles are usually more or less in a ring and show different arrangements at the nodes and internodes. The vascular cylinders are generally continuous at the internode and their continuity is interrupted at the nodal region due to the emergence of bundles that terminate either at the leaf bases, axillary buds or stipules etc. At the [...]
The upcoming discussion will update you about the difference between dicotyledonous stem and monocotyledonous stem. Difference # Dicotyledonous Stem: 1. Internally it is differentiated into epidermis, cortex and stele. 2. Epidermis it bears hairs that are usually multicellular. 3. Cortex the peripheral layers, i.e. hypodermis are generally collenchymatous. 4. The rest of cortex bears nonvascular tissues. 5. The innermost layer [...]