The following plant placed under dicots but lacks cotyledone is :

Options

A. Maize
B. Cuscuta
C. Mustard
D. Linseed

Answer

### Step-by-Step Solution:

1. **Understanding Cotyledons**: Cotyledons are the first leaves that appear on a plant embryo and are crucial for providing nutrition to the developing plant. They are typically found in both monocots and dicots.

2. **Identifying Dicot Characteristics**: Dicotyledons, or dicots, are a group of flowering plants that usually have two cotyledons. However, there are exceptions where some dicots may lack cotyledons.

3. **Exploring the Options**: The question asks for a dicot that lacks cotyledons. The options provided include:
- Cascata
- Maze
- Mustard
- Linseed

4. **Analyzing Each Option**:
- **Cascata**: This is a parasitic plant that does not have cotyledons because it derives its nutrition from the host plant's xylem and phloem.
- **Maze**: This is a monocot and has one cotyledon.
- **Mustard**: This is a dicot and has two cotyledons.
- **Linseed**: This is also a dicot and has two cotyledons.

5. **Conclusion**: The only plant listed that is classified as a dicot but lacks cotyledons is **Cascata**.

### Final Answer:
The plant placed under dicots but lacks cotyledons is **Cascata**.

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