Identify the pteridophyte which belongs to the class Lycopsida and produces two different kinds of spores (macro and micro spores).

Step-by-step solution

According to NCERT, pteridophytes are classified into four classes: Psilopsida, Lycopsida, Sphenopsida, and Pteropsida. The class Lycopsida includes Selaginella and Lycopodium. While most pteridophytes produce only one kind of spore (homosporous), genera like Selaginella and Salvinia produce two kinds of spores, macro (large) and micro (small) spores, and are known as heterosporous. Therefore, Selaginella is the correct answer as it belongs to Lycopsida and is heterosporous. Lycopodium belongs to Lycopsida but is h