Haven't a clue as to ID. You might have a look at the 'Real Rebutias' website. See if you can ID it from there. If not it might be a hybrid. An attractive one though.:P

Dave
Milwaukee

Thanks for the Real Rebutias link suggestion, Dave. Why didn't I think of it from the start? I've purchased plants from them when they were vendors at conferences I attended.

I think that plant is about to have a name.

Also, thanks for the kind word.

Al