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Question

Which of the following pteridophytes is heterosporous?

A
Psilotum
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B
Adiantum
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C
Salvinia
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D
Lycopodium
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Solution

The correct option is C Salvinia
Pteridophytes such as Selaginella and Salvinia produce two kinds of spores, macro and micro spores. Hence they are called heterosporous.

In most pteridophytes, all spores are of similar kind. Hence they are called homosporous.

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