No, it should go to the ground connection. If your 220V outlet does
not have a ground wire, then make the 110V outlet a GFCI type.

I forgot, leave the green wire unconnected if you don't have a
real ground connection. Do not connect it to the neutral wire.



What are the ramifications of putting them together?

Could I just screw the green wire to the 220v outlet's grounded case since
there is no availible prong to use for this?