Cycas is dicotyledonous, yet not placed under dicotylednus because

Options

A. It looks like a palm tree
B. It has compound leaves
C. Its ovules are naked.
D. It bears megasporophylls

Answer

**Step-by-Step Solution:**

1. **Understanding Cycas**: Cycas is a genus of plants that are often classified as dicotyledonous because they have two cotyledons in their seeds. However, they are not placed under the dicotyledon category in the classification of plants.

2. **Classification of Plants**: Plants are generally classified into two main categories based on the number of cotyledons: monocots (one cotyledon) and dicots (two or more cotyledons). Cycas, despite having two cotyledons, belongs to a different category.

3. **Gymnosperms vs. Angiosperms**: Cycas is classified under Gymnosperms, which are seed-producing plants that do not form flowers or fruits. Instead, their seeds are "naked," meaning they are not enclosed in an ovary. This is a key distinction from dicots, which are part of Angiosperms that have seeds enclosed within fruits.

4. **Analyzing the Options**: The question provides several options to explain why Cycas is not placed under dicotyledons:
- Option A: It looks like a palm tree. (Incorrect)
- Option B: It has compound leaves. (Incorrect)
- Option C: Its ovules are naked. (Correct)
- Option D: It bears structures like megasporophylls. (Incorrect)

5. **Correct Answer**: The correct reason why Cycas is not classified as a dicotyledon is because its ovules are naked, which aligns with the characteristics of Gymnosperms.

**Final Answer**: Cycas is dicotyledonous, yet not placed under dicotyledons because its ovules are naked (Option C).

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