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. Pippy= Peach Spots x Fitzhart registered: 5/11/1998 by Roper N.
Species composition summary:
fitzgeraldii 50.% hartmannii 25.% weinthalii 25.%
Sarco. Pippy = Peach Spots x Fitzhart = [fitzgeraldii x weinthalii] x [hartmannii x fitzgeraldii]