Offset type of stem is found in

Options

A. Pistia
B. Eichhornia
C. Opuntia
D. 1 & 2

Answer

To answer the question about where the offset type of stem is found, we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Offset**:
- An offset is a type of modified stem that grows horizontally. It is a form of a runner that allows the plant to spread out.

2. **Identify the Characteristics of Offsets**:
- Offsets are typically found in hydrophytes, which are plants that grow in water. They are adapted to floating on the water's surface.

3. **Recognize the Nature of Hydrophytes**:
- Hydrophytes are usually weaker in structure compared to terrestrial plants. Their stems and roots are not as strong, which is suitable for their aquatic environment.

4. **Examine the Given Options**:
- The options provided are:
- A) Pistia
- B) Ecornea
- C) Appuncia
- D) Both A and B

5. **Identify Plants with Offset Stems**:
- Among the options, both Pistia and Ecornea are known to be hydrophytes that exhibit the offset type of stem.

6. **Conclude the Correct Answer**:
- Since both Pistia and Ecornea are correct examples of plants with offset stems, the answer is option D) Both A and B.

### Final Answer:
The offset type of stem is found in **both Pistia and Ecornea**.

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