Ptridophytes are called vacular cryptogams, because they are non-seeded plants containing

Options

A. Only xylem
B. Only phloem
C. Neither xylem nor phloem.
D. Xylem and phloem.

Answer

**Step-by-Step Solution:**

1. **Understanding Pteridophytes**: Pteridophytes are a group of plants that are classified under the third phylum of the plant kingdom. They are characterized by their vascular tissues.

2. **Defining Vascular Cryptogams**: The term 'vascular' refers to the presence of specialized tissues (xylem and phloem) that are responsible for the transport of water, nutrients, and food throughout the plant. 'Cryptogams' refers to plants that do not produce seeds or flowers.

3. **Identifying Vascular Tissues**:
- **Xylem**: This tissue is responsible for the transport of water and minerals from the roots to the rest of the plant.
- **Phloem**: This tissue transports the products of photosynthesis (mainly sugars) from the leaves to other parts of the plant.

4. **Conclusion**: Since Pteridophytes have both xylem and phloem, they are classified as vascular plants. Additionally, since they do not produce seeds, they are categorized as cryptogams.

5. **Final Answer**: Therefore, the correct answer to the question is option D: Pteridophytes contain both xylem and phloem.

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