circinate vernation is found in cycas and fern
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Circinate vernation
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- Circinate vernation is a term that describes the tightly coiled manner in which a fern frond emerges where the tender growing tip of the frond is protected within a coil. This type of vernation is also seen in Cycas, the only genus that is recognized in the family Cycadaceae where the leaves grow directly from the trunk. Circinate vernation is found in these new leaflets.
- Male gametes are multiciliated
- Microsporangia are present as sori the lower surface of microsporophyll
- Ramenta are present on young leaves as in ferns.
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