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. Galaxy
= Misty x hartmannii ( has 21 hybrid progeny ) registered: 4/02/2008 by Butler D.F. Sarco. Galaxy 'Cream 2011' AM/ANOS 2016 Photo W. Dobson
Species composition summary:
hartmannii 75.% dilatatus 12.5% hirticalcar 12.5%
Detailed composition:
Sarco. Galaxy = Misty x hartmannii = [Aussie Dawn x Riverdene] x hartmannii
Riverdene = hartmannii x hirticalcar
Aussie Dawn = hartmannii x dilatatus