Great links Janet.
As you can see, the one I have does have the toothy edges, it also has a dark green leaf edge which really sets off the icy green base color of the leaves.
After investingating I can definitely say that it is not Gasteraloe 'Green Ice'.
http://www.succulents.us/gasth...
G. 'Silver Ice' sure looks like a match in leaf shape and color. There are so many hybrids out there, I may never know the name of this one.
I agree that it looks to be related to Gasteria obtusifolia.
