I would say, from the arrangement of it's spines and flowers, that it's a type of Rebutia. I might find the species but there are so many, it could be difficult. I'll try ...

No, but how does something so pretty come out of........(:0)

Thanks Hywel. I think I asked you this one before and you said to get a pic of it when it was flowering, so here it is!!

Oh I'm sorry Sheila. There are so many Rebutias, and most of them are very similar. It's difficult to tell which one this is. It's definately a Rebutia though.

That'll do me Hywel. Thanks very much for your help!