When to plant palm tree seeds?

 I brought back from CA here to IL some 7/8 diameter palm tree seeds,
like miniature coconuts.  They had fallen from the seed pod clusters
and were laying on the ground/sidewalk.  When I lived in FL, we would
let the coconuts dry out before planting them.  Should I do the same
thing with these miniature-sized palm tree seeds, or can I just plant
them now.