Which of the following angiospermic families lacks vessels ?

Options

A. Winteraceae
B. Tetracentraceae
C. Trochodendraceae
D. All of these

Answer

To solve the question "Which of the following angiospermic families lacks vessels?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking which family of angiosperms (flowering plants) does not have vessels in their xylem. Vessels are specialized structures for the conduction of water and minerals.

2. **Identify the Angiospermic Families**: We need to consider the different families of angiosperms that are known to exist. Some common angiospermic families include Rosaceae, Asteraceae, and Winteraceae.

3. **Research on the Families**:
- **Winteraceae**: This family is known as a basal angiospermic family and is characterized by the absence of vessels in their xylem. Instead, they have tracheids for water conduction.
- **Other Families**: Most other angiospermic families, such as Rosaceae and Asteraceae, do possess vessels in their xylem.

4. **Conclusion**: Since Winteraceae is the only family among the options that lacks vessels, it is the correct answer.

5. **Final Answer**: Therefore, the angiospermic family that lacks vessels is **Winteraceae**.