To confirm the registration of an Australian native hybrid & view its composition/progeny: (Database as at 1st April 2018 RHS registrations)
For non-Australian Dendrobium hybrids use the Dendrobium Hybrids checklist here
Sarco. Rye Jewel= Melba x Aussie Weinman registered: 8/02/2017 by Fitzsimmons C.W. -Gregory B.
Species composition summary:
Sarco. Rye Jewel = Melba x Aussie Weinman = [hartmannii x falcatus] x [Weinhart x hartmannii]
Weinhart = hartmannii x weinthalii