Monocarpellary ovary, diadelphous androecium and marginal placentation is found in

Options

A. Cruciferae
B. compositae
C. Liliaceae
D. Papilionaceae

Answer

To solve the question regarding the characteristics of monocarpellary ovary, diadelphous androecium, and marginal placentation, we will follow these steps:

### Step 1: Understand the Terms
- **Monocarpellary Ovary**: This means the ovary is made up of a single carpel.
- **Diadelphous Androecium**: This refers to the arrangement of stamens in two groups or bundles.
- **Marginal Placentation**: This type of placentation occurs when the ovules are attached along the margin of the ovary.

### Step 2: Identify the Plant Families
Next, we need to identify which plant family exhibits these characteristics. The options provided are:
- Cruciferae (Brassicaceae)
- Compositae (Asteraceae)
- Liliaceae
- Peplinoceae

### Step 3: Analyze Each Family
- **Cruciferae**: Typically has tetradynamous stamens (four long and two short), not diadelphous.
- **Compositae**: Usually has a variety of floral structures but does not fit all three characteristics.
- **Liliaceae**: Generally has a more complex structure and does not typically exhibit diadelphous stamens.
- **Peplinoceae**: Less commonly known and does not fit the characteristics described.

### Step 4: Conclusion
After analyzing the characteristics and the families, we find that the combination of monocarpellary ovary, diadelphous androecium, and marginal placentation is characteristic of the **Liliaceae** family.

### Final Answer
The correct answer is **Liliaceae**.

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