Spores possess elaters in

Options

A. Marchantia
B. Equisetum
C. Anthoceros
D. Pteridium.

Answer

To solve the question "Spores possess elaters in," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which plant group has spores that possess elaters.

2. **Define Elaters**: Elaters are specialized hygroscopic cells that can change size based on moisture content. This property allows them to aid in the dispersion of spores.

3. **Identify the Options**: The options given are:
- A) Marcantia
- B) Equisetum
- C) Enthesaurus
- D) Pteridium

4. **Analyze Each Option**:
- **Marcantia**: This is a genus of liverworts, which do not have elaters in their spores.
- **Equisetum**: Commonly known as horsetail, this plant is known to have spores with elaters.
- **Enthesaurus**: This is not a commonly recognized plant group in the context of elaters.
- **Pteridium**: This refers to bracken ferns, which also do not have elaters in their spores.

5. **Conclusion**: Based on the definition and characteristics of elaters, the correct answer is **B) Equisetum**.

### Final Answer:
The spores possess elaters in **Equisetum**.

---