With the solid and unusual shade of green, it should be easy to identify the variety of Sempervivum/Hen&Chicks in this pic but I can't find it. It's one of 7 or 8 un-named H&C's I bought earlier in the summer.
Edit: Maybe "Excalibur"?
these are beautiful Anne. I assume you have checked many sources on the internet but here is one site with quite a few http://www.rockwallgardens.com/Semps.html
looks a bit like green globe??
@allred thanks mary lou, yes, it does look like green globe. i wonder if judy's at rock wall opens out a bit more, maybe different conditions, etc. i love that link and i love their gardens, in fact when i was checking links this morning, i almost jumped in the car and went there for an outing! i haven't been there for a year or two. btw, judy gives great workshops, maybe you've been there too? just outside perth.
looks a bit like green globe??