The heterosporous pteridophyte belonging to class lycopsida is

Options

A. Selaginella
B. Psilotum
C. Equisetum
D. Pteris

Answer

To solve the question regarding the heterosporous pteridophyte belonging to the class Lycopsida, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Heterospory**:
- Heterospory is the production of two different types of spores: microspores (small) and megaspores (large). This is a key characteristic of certain plant groups.

2. **Identify the Class Lycopsida**:
- Lycopsida is a class within the phylum Pteridophyta, which includes the clubmosses and their relatives.

3. **Recognize Heterosporous Members**:
- Within the class Lycopsida, there are a few genera that exhibit heterospory. The most notable ones are Selaginella and Lycopodium.

4. **Determine the Correct Example**:
- Among the genera mentioned, Selaginella is known for being heterosporous, while Lycopodium is primarily homosporous (producing only one type of spore).

5. **Conclude the Answer**:
- Therefore, the heterosporous pteridophyte belonging to the class Lycopsida is **Selaginella**.

### Final Answer:
The heterosporous pteridophyte belonging to class Lycopsida is **Selaginella**.

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