I don't see any listings for X Graptophytum in the database and I'm not sure how it should be added so hopefully an administrator will be along soon to create the entry.
X Graptophytum 'Supreme' (Graptophytum x Pachyphytum)
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!