Oh Peter, what a shock that must have been. Which ones are they?
And there are many named semps that parentage is unknown. Remember the Skrocki method?
But I think Patty is talking about a semp that is mature, but name unknown, not a seedling in her bed.
Problem is there are many nurseries giving new names to semps that have lost their ID tags. That is a big problem for those that are serious about our collections being correct.