Gabe, while I mostly agree with you about the two bananas you mentioned not being "real" plants, the name Musa paradisiaca does have botanical significance. It was the first botanical name given to a banana using the binomial nomenclature system, and given by Linnaeus himself. Technically, since it was the first name, it has priority over any other name given afterwards. I know that bananas have been revised taxonomically, and that the name doesn't actually refer to any particular species or cultivar, but I still think that it does have some validity. If nothing else, it could be used to refer to any hybrid cultivar (i.e. Musa X paradisiaca 'Dwarf Brazilian').
Just my two cents!
