Multiple choice

Heterospory and circinate vernation are present in which of the following?

  1. Dryopteris

  2. Cycas

  3. Funaria

  4. Pinus
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B Correct answer
Explanation

It is characterised by morphologically dissimilar spores that are produced from two types of sporangia. These are microspores or male spores and megaspores (macrospores) or female spores. The arrangement of the young leaves within a bud is vernation. In cycas, circinate vernation is there.

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