Where is circinate vernation found?

When the leaf is rolled from the apex towards the base like the watch's spring, it is called circinate vernation. It is found in both Cycas and fern. In ferns like Dryopteris, the young leaves are coiled like a spring from the apex downwards. This is a special feature of ferns and is known as circinate vernation. In Cycas, the leaves are reduced and usually once pinnate circinate.