Some genera of pteridophytes produce two kinds of spores. Such plants are known
Question
Some genera of pteridophytes produce two kinds of spores. Such plants are known
Solution
Such plants are known as heterosporous pteridophytes. Heterosporous pteridophytes produce two types of spores: microspores and megaspores. The microspores develop into male gametophytes, which produce sperm cells, while the megaspores develop into female gametophytes, which produce egg cells. This is a form of sexual reproduction in plants. Examples of heterosporous pteridophytes include some species of the genera Selaginella and Isoetes.
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