Cone Granules
The stem-like cone granules, fewer in number than the rod granules, are placed close to the membrana limitans externa, through which they are continuous with the cones of the layer of rods and cones.
They do not present any cross-striation, but contain a pyriform nucleus, which almost completely fills the cell.
From the inner extremity of the granule a thick process passes into the outer plexiform layer, and there expands into a pyramidal enlargement or foot plate, from which are given off numerous fine fibrils, that come in contact with the outer processes of the cone bipolars.
Read more about this topic: Outer Nuclear Layer