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. Hot Santa
= Hot Ice x Flair ( has 4 hybrid progeny ) registered: 5/02/2008 by Clement R.Species composition summary:
hartmannii 59.4% fitzgeraldii 37.5% ceciliae 3.1%
Detailed composition:
Sarco. Hot Santa = Hot Ice x Flair = [Cherie x Heidi] x [Heartlight x Fitzhart]
Fitzhart = hartmannii x fitzgeraldii
Heidi = Fitzhart x hartmannii = [hartmannii x fitzgeraldii] x hartmannii
Heartlight = Pinkhart x hartmannii = [Lois x hartmannii] x hartmannii
Cherie = Fitzhart x fitzgeraldii = [hartmannii x fitzgeraldii] x fitzgeraldii
Lois = ceciliae x hartmannii