...what a great plan.
see link
Royal Botanic Gardens, Kew: DNA Barcoding
It would certainly finally define a lot of the species
It's just the sort of thing that bioversity international should be getting inolved in to sort out Musaceae once and for all.
It'd be quite handy to have a litle hand held analyser whilst in the jungle too. not that there's a lot of jungle in Wiltshire, but you never know