Question

Fern character of Cycas is

• A. Coralloid root
• B. Tap root
• C. Parallel venation
• D. Circinate venation

Answer 1

The correct option is D Circinate venation

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. The pinnately compound leaves grow in a rosette form, with new foliage emerging from the top and center of the crown. Circinate vernation is found in these new leaflets.

Therefore, the correct option is D.