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. Memoria Jean Stewart
= Harmonic x Melody registered: 11/12/2014 by Hockey P.J.Species composition summary:
fitzgeraldii 46.9% hartmannii 35.9% falcatus 17.2%
Detailed composition:
Sarco. Memoria Jean Stewart = Harmonic x Melody = [Dove x Harmony] x [Melba x fitzgeraldii]
Harmony = fitzgeraldii x Dove = fitzgeraldii x [Melody x hartmannii]
Melba = hartmannii x falcatus
Dove = Melody x hartmannii = [Melba x fitzgeraldii] x hartmannii
Melody = Melba x fitzgeraldii = [hartmannii x falcatus] x fitzgeraldii