I kind of figured it would turn into Aloe "Dwarf" (and I did see the SMG page)... not ideal, but better I think.
I have no problem with using spinosissima as a cultivar name, just so that the best term possible is used to identify the plant, but it's going to look wrong in quotes, and technically I think it would be wrong that way.
The only middle road I can imagine is if the hybrids with x names (like x spinosissima and only a few others, among the 500 or so species of aloes) would be accepted where they are in common use for otherwise unnamed hybrids.
These would not be natural hybrids but they are normally labeled using these names, and generally known by them in cultivation. The x names are the reason they don't have proper "Cultivar" names.
For example x nobilis, which would be quite common in cultivation, and is not present anywhere in the database (except mistakenly as a synonym for one of its parents, in a variegated listing). With respect to the last part, I would recommend that nobilis be removed as a synonym on this page as nobilis is only half perfoliata, at best.
Aloe (Aloe perfoliata 'Variegata')
If you choose to duck down this particular rabbit hole on the web for confirmation, be aware that mitriformis is another name (a synonym) for perfoliata, and used in some of the discussions there. You will see Aloe "Nobilis" on the SMG page for this plant but like "Dwarf" or "Spinosissima" I would imagine this is a name that sprouted quotation marks and capital letters through uninformed usage.
http://www.smgrowers.com/produ...
