To confirm the registration of an Australian native hybrid & view its composition/progeny: (Database as at 1st January 2020 RHS registrations)
For non-Australian Dendrobium hybrids use the Dendrobium Hybrids checklist here
Sarco. Fizzy Dove= Dove x Fitzhart ( has 32 hybrid progeny ) registered: 18/11/2003 by Butler D.F.
Species composition summary:
Sarco. Fizzy Dove = Dove x Fitzhart = [Melody x hartmannii] x [hartmannii x fitzgeraldii]
Melody = Melba x fitzgeraldii = [hartmannii x falcatus] x fitzgeraldii