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. Private Bin= Burgundy on Ice x hartmannii registered: 10/01/2011 by Roper N.
Species composition summary:
hartmannii 75.% fitzgeraldii 18.8% falcatus 6.3%
Sarco. Private Bin = Burgundy on Ice x hartmannii = [Judith x Fitzhart] x hartmannii
Fitzhart = hartmannii x fitzgeraldii
Judith = Melba x Fitzhart = [hartmannii x falcatus] x Fitzhart