What is the meaning of valvate aestivation?

What is the meaning of valvate aestivation?
  1. When sepals or petals overlap one another
  2. When sepals or petals overlap one another in a particular direction
  3. When sepals or petals just touch one another at the margin, without overlapping
  4. When the margins of sepals or petals overlap one another but not in any particular direction

Solution

Valvate aestivation refers to a situation where the sepals or petals in a whorl simply touch one another at the margin, without overlapping.

Asked in: NCERT

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