Identify the pair of heterosporous pteridophytes among the following:
- ALycopodium and Selaginella
- BSelaginella and Salvinia
- CPsilotum and Salvinia
- DEquisetum and Salvinia
Solution & Step-by-step Explanation
While most pteridophytes produce only one kind of spore (homosporous), a few genera like Selaginella and Salvinia produce two kinds of spores (macro and micro) and are therefore called heterosporous.