Microphyllous pteridophytes are `:`

Options

A. Adiantum and Pteris
B. Dryopteris and Ophioglossum
C. Lycopodium and Seiaginella
D. Selaginella and ferns

Answer

**Step-by-Step Solution:**

1. **Definition of Microphyllous Pteridophytes**: Microphyllous pteridophytes are a group of vascular plants characterized by having small leaves, known as microphylls.

2. **Classification**: These plants were classified by Carolus Linnaeus under the Cryptogamy group.

3. **Examples of Microphyllous Pteridophytes**: The most notable examples of microphyllous pteridophytes include Lycopodium and Selaginella.

4. **Comparison with Megaphyllous Pteridophytes**: In contrast, megaphyllous pteridophytes have larger leaves, referred to as megaphylls. An example of a megaphyllous pteridophyte is the fern.

5. **Key Characteristics**: Microphyllous pteridophytes, such as Lycopodium, have unique morphological features, including a sporophyte that is green and has leaves arranged in specific patterns (e.g., 4 rows of leaves on the stem and 2 rows of small leaves).

6. **Reproductive Methods**: These plants can reproduce both sexually and vegetatively, showcasing their adaptability.

7. **Conclusion**: Based on the characteristics and examples discussed, the correct answer to the question about microphyllous pteridophytes is that they include plants like Lycopodium and Selaginella.

**Final Answer**: Microphyllous pteridophytes include plants like Lycopodium and Selaginella.

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