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Identify the pair of heterosporous pteridophytes among the following:
A
Equisetum and Salvinia
B
Lycopodium and Selaginella
C
Selaginella and Salvinia
D
Psilotum and Salvinia
Explanation
Selaginella and Salvinia produce two kinds of spores (macro- and microspores).
Detailed Solution
Genera like Selaginella and Salvinia which produce two kinds of spores, macro (large) and micro (small) spores, are known as heterosporous.