When the veins run parallel to each other within a lamina the venation is termed as

Answer

**Step-by-Step Solution:**

1. **Understanding Venation**: Venation refers to the pattern of veins and veinlets in the leaves of plants. It is important to recognize that the arrangement of these veins can vary significantly between different types of plants.

2. **Types of Venation**: There are primarily two types of venation:
- **Reticulate Venation**: In this type, the veins form a network or a web-like pattern. This is commonly found in dicotyledonous plants (dicots).
- **Parallel Venation**: In this type, the veins run parallel to each other along the length of the leaf. This pattern is typically observed in monocotyledonous plants (monocots).

3. **Identifying Parallel Venation**: When the question states that the veins run parallel to each other within a lamina, it is describing the characteristic of parallel venation. This means that the veins do not intersect or form a network but rather maintain a consistent distance from one another.

4. **Conclusion**: Therefore, when the veins run parallel to each other within a lamina, the venation is termed as **parallel venation**.

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