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Question

Circinate vernation is seen in
  1. Equisteum, Nephrolepis, Psilotum
  2. Nephrolepis, Adiantum, Pteris
  3. Lycopodium, Nephrolepis
  4. Psilotum, Nephrolepis, Adiantum

A
Equisteum, Nephrolepis, Psilotum
B
Nephrolepis, Adiantum, Pteris
C
Psilotum, Nephrolepis, Adiantum
D
Lycopodium, Nephrolepis
Solution
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In Pteridophytes, leaves are of two types, microphyllous and megaphyllous. The young megaphyllous leaves are circinately coiled, like the spring of watch. This is called as circinate venation. E.g., Nephrolepis, Adiantum, Pteris.

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