Twitcher, Thanks for looking at my pictures up above. I'm sure they are mis-named. I had no name and just labeled them "Sempervivum Babies". You are right they look like the roller style babies. If the rollers are in the Jovibarba family, then that's what I got. I'll go with your hunch of Jovibarba hirta. I almost always loose the tags. Between the dogs and the weather, I've never had any durable marking system.
Right now I have a liquid ink pen that works for a year or two on the plastic stick in tags. Eventually they get brittle and break into pieces, so no matter how good the pen, the tags are pretty short lived. Those double pronged metal push in labels are pretty durable. I even bought a bundle of those a while back, but I haven't used them, since I don't have the label making machine. One of these days I'll get it together, somehow, You'd think.