Sabal seed with the flesh still on

Butia with flesh removed. Notice the difference in appearance

European Fan palm seed in bottle cap for comparison

They may be Needle palm seeds. They are native to our area.

May also be Saw Palmetto also native to our area.

http://palmguide.org/images.php?family=arecaceae&genus=serenoa

Laaz

You solved the first seed mystery!!!!! The Butia seed pic is exactly what I cracked open an found the smaller seed inside.

Now as for this seed from Tampa........