Just to help along, please:
here is the (now) accepted name for your Potinara Island Peach
http://apps.rhs.org.uk/horticu...
I would use the RHS to add Orchid hybrids to the Database, no?
edited to add -
wouldn't "XPotinara" imply this is a natural hybrid? It is not. Also - a search will have a hard time finding this.
Sorry, just my 2 cents…