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. Nance= Jaydee x Heidi registered: 7/11/2018 by Doney J.
Species composition summary:
Sarco. Nance = Jaydee x Heidi = [Fitzhart x Fizzy Dove] x [Fitzhart x hartmannii]
Fizzy Dove = Dove x Fitzhart = [Melody x hartmannii] x [hartmannii x fitzgeraldii]
Fitzhart = hartmannii x fitzgeraldii
Melody = Melba x fitzgeraldii = [hartmannii x falcatus] x fitzgeraldii