The leaflets in the plant of cycas are termed as pinnule. There is upper and lower epidermis which have the compactly arranged cells and below is the layer of the hypodermis. There are stomata on the upper and lower epidermis. The mesophyll is divided in two tissues, palisade and the spongy tissue. The palisade tissue contains long cells which are arranged compactly. There is spongy tissue which has the loosely arranged cells. The vascular bundles are conjoint and collateral. The protoxylem is towards the lower epidermis and the metaxylem is towards the upper epidermis. The xylem is central and centrifugal in the arrangement. There is phloem tissue arranged near the lower epidermis.