Do you perhaps mean Oncidiums?

In general, a badly shrivelled pb will never "plump up completely." The
newer ones should fill out at least a little, the oldest ones probably not
at all. It's nevertheless best to leave all of them on unless they are
diseased or completely desiccated; the new growth uses whatever stored
energy may be left in them.

After you have 2-4 nice-looking new pbs, then it would be safer to do
"cosmetic" removal of the older shrivelled pbs. Kenni

"Mark_OK" wrote in message
...
Some of the conidium's I have rescued the pseudobulbs are shriveled. Even
though they are showing growth the bulbs don't seem to be changing. Will
they eventfully regain their form or are they done for?