Looks like I got sloppy with Lone Star too. Not the big group in the basket but the rosette I moved and potted in clay. Looked over there today and my eyes got big cause it was like seeing a zombie semp! NOOOOO!
but it's too late for that one! and it happened in a flash too, it was FINE yesterday and I have not watered since then. So..... feh. Too discouraged even to take a picture! And it is odd because some of the noids I have have been in much wetter circumstances, it seems, and not shown any damage at all. (I'm thinking of last fall and winter, really.)
so I dunno.
I did buy a new one today, one of those with the webbing and lots of little either flowers or offsets..... thought it had a tag but it doesn't, still, distinctive enough I might be able to ID it. Now I am not sure I know what to do with it! I'll do something tomorrow. Take a picture of the new one at least, and pot it up in pure pea gravel and perlite.