OOOps, sorry about not telling you what they are :)
Yes, 4 and 10 are Saxifraga and so is 8, just a different type.
And that 8... I am not sure, could be some kind of sempervivum-related plant. NO idea. But it was too cool and I did take two small ones home. You know, to keep under observation...
I love that Euphorbia myrsinites. I have one in a pot but it looks so much better up on a rock.
Most of the plants have no tags. Where there's tags, there's no plants.