1.   Faint lateral veins spread from a somewhat prominent midrib.

2.   The leaf-blade bears circular dark patches, and has a prominent midrib and lateral veins.

3.   The leaves are also fleshy with a prominent midrib, with five pairs of lateral veins.

4.   These ribbon-like leaves are pale green, with a prominent midrib and usually two lateral veins on either side.

5.   They are also translucent with a prominent midrib and many fine lateral veins.