Systematic position of Cucurbitaceae according to Bentham and Hooker's system is

Options

A. gamopetalae, calyciflorae, cucurbitales
B. polypetalae, disciflorae cucurbitales
C. polypetalae, calyciflorae, passiflorales
D. polypetalae thalamiflorae, cucurbitales

Explanation

To determine the systematic position of the Cucurbitaceae family according to Bentham and Hooker's system, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Family**: The family in question is Cucurbitaceae, commonly known as the gourd or squash family.

2. **Determine the Series**: According to Bentham and Hooker's classification, the Cucurbitaceae family falls under the series known as "Calciflorae."

3. **Examine the Stamina**: In Cucurbitaceae, the stamens can either be fused or free. This characteristic is important for classification.

4. **Analyze the Petals**: The petals in Cucurbitaceae are described as polypetalous, meaning they are separate and not fused together.

5. **Identify the Order**: The Cucurbitaceae family is classified under the order "Passiflorales" in Bentham and Hooker's system.

6. **Compile the Information**: Based on the above characteristics, the systematic position of Cucurbitaceae can be summarized as follows:
- Series: Calciflorae
- Petals: Polypetalous
- Order: Passiflorales

7. **Select the Correct Option**: Given the options provided, the correct systematic position of Cucurbitaceae according to Bentham and Hooker's system is:
- Option 3: Polypetaly, Calciflorae, and Passiflorales.

### Final Answer:
The systematic position of Cucurbitaceae according to Bentham and Hooker's system is **Option 3: Polypetaly, Calciflorae, and Passiflorales.**

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